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PHX - STL

$59 Find cheap flights from Phoenix to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to St. Louis departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
jue. 6/27
jue. 7/4

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Phoenix to St. Louis (PHX-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:06 pm - 9:00 pmPHX-STL
2h 54mnonstop
9:00 pm - 10:17 pmSTL-PHX
3h 17mnonstop
$118Frontier
Find Deal
sáb., jun. 15 - sáb., jun. 22
5:08 pm - 10:07 pmPHX-STL
2h 59mnonstop
9:50 pm - 11:07 pmSTL-PHX
3h 17mnonstop
$119Frontier
Find Deal
mié., jun. 26 - sáb., jun. 29
6:56 pm - 11:50 pmPHX-STL
2h 54mnonstop
7:35 am - 8:55 amSTL-PHX
3h 20mnonstop
$131American Airlines
Find Deal
jue., jun. 13 - mar., jun. 18
6:56 pm - 11:56 pmPHX-STL
3h 00mnonstop
7:35 am - 8:55 amSTL-PHX
3h 20mnonstop
$132American Airlines
Find Deal
mar., jun. 4 - mar., jun. 18
11:25 am - 1:05 pmPHX-STL
23h 40m1 stop
3:07 pm - 10:49 amSTL-PHX
21h 42m1 stop
$154Spirit Airlines
Find Deal
mar., jun. 4 - vie., jun. 7
10:16 am - 1:05 pmPHX-STL
24h 49m1 stop
3:23 pm - 11:41 pmSTL-PHX
10h 18m1 stop
$159Spirit Airlines
Find Deal
mar., jun. 25 - mar., jul. 2
11:20 pm - 10:08 amPHX-STL
8h 48m1 stop
4:45 pm - 9:50 pmSTL-PHX
7h 05m1 stop
$179United Airlines
Find Deal
vie., jun. 7 - sáb., jun. 8
5:37 pm - 12:58 amPHX-STL
5h 21m1 stop
7:55 am - 12:13 pmSTL-PHX
6h 18m1 stop
$216Delta
Find Deal
vie., jun. 14 - dom., jun. 16
5:31 pm - 12:59 amPHX-STL
5h 28m1 stop
5:56 pm - 11:23 pmSTL-PHX
7h 27m1 stop
$253Delta
Find Deal
jue., jun. 6 - mar., jun. 18
1:39 pm - 8:49 pmPHX-STL
5h 10m1 stop
4:45 pm - 9:49 amSTL-PHX
19h 04m2 stops
$390United Airlines
Find Deal
mar., jun. 4 - mar., jun. 18

Flights from Phoenix to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Phoenix to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Phoenix to St. Louis?

The average price of all flights from Phoenix Sky Harbor Intl Airport to St. Louis clicked on KAYAK for each day over the last 12 months.
For Phoenix to St. Louis, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from St. Louis back to Phoenix, the best deals are generally found on Tuesday, with Thursday being the most expensive.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Phoenix Sky Harbor Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Phoenix Sky Harbor Intl Airport to St. Louis is May, where tickets cost $250 on average. On the other hand, the most expensive months are December and October, where the average cost of tickets is $415 and $398 respectively.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Phoenix Sky Harbor Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Phoenix Sky Harbor Intl Airport to St. Louis, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 90 days before departure.

Which airlines provide the cheapest flights from Phoenix to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $59. KAYAK users also found Phoenix to St. Louis round-trip flights on Frontier from $118 and on American Airlines from $131.

Which airlines fly non-stop between Phoenix Sky Harbor Intl Airport and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Phoenix Sky Harbor Intl Airport to St. Louis.
There are 3 airlines that fly nonstop from Phoenix Sky Harbor Intl Airport to St. Louis. They are: American Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $78 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Phoenix Sky Harbor Intl Airport and St. Louis per day?

Each day, there are between 6 and 9 nonstop flights that take off from Phoenix Sky Harbor Intl Airport and land in St. Louis, with an average flight time of 2h 54m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 52 flights. The most frequent day of departure is Friday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Phoenix Sky Harbor Intl Airport and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Phoenix to St. Louis take?

Nonstop flights from Phoenix generally make it to St. Louis in 2h 54m. The flying distance between the two cities is 1,258 miles.

What’s the earliest departure time from Phoenix to St. Louis?

Early birds can take the earliest flight from Phoenix Sky Harbor Intl Airport at 5:10 am and will be landing in St. Louis at 10:05 am.

What’s the latest departure time from Phoenix to St. Louis?

If you prefer to fly at night, the latest flight from Phoenix Sky Harbor Intl Airport to St. Louis jets off at 8:10 pm and lands at 1:05 am.

Good to know

Low season

January

High season

May

Cheapest flight

$59
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 30% lower on average.
Flight from Phoenix to St. Louis

When to book flights from Phoenix to St. Louis

Are your dates flexible? Find out the best times to travel from Phoenix to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix to St. Louis flights

  • Where can passengers sleep at Lambert International Airport?

    Seating with armrests is available in several locations across the airport, most of which are in Terminal 2 and Concourse C. It is recommended by reviewers that you bring a sleeping bag, travel blanket, or additional layers of clothing with you if you want to sleep at this airport since it is believed to be very chilly.

  • Are there any kid-friendly amenities at Lambert International Airport?

    Near gate C3 at STL is a play area designated specifically for children. This is an educational play exhibit with a transportation-based theme that has a child-sized facsimile of a light rail train and a MetroLink train as well as a child-sized airplane and air traffic control tower.

  • How can I get to downtown St. Louis from STL airport?

    If you are traveling downtown, using Metrolink is an option that is not only speedy but also affordable and easy. The St. Louis International Airport (STL) is about 15 miles from the city's central business district. It takes around 19min to complete.

  • How do I get from downtown Phoenix to PHX airport?

    No rail can take passengers directly from downtown Phoenix to the terminal building at the Phoenix airport. To begin, you will need to ride a Valley Metro Rail train to the rail station at 44th Street and Washington and then transfer to the free PHX Sky Train® to go to Terminal 3 or 4. The entire amount of time spent traveling is around half an hour.

  • What is the cheapest flight from Phoenix Sky Harbor Intl Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to St. Louis was $59 for a one-way ticket and $118 for a round-trip.

  • Do I need a passport to fly between Phoenix and St. Louis?

    No, a passport isn't needed to fly from Phoenix to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Phoenix to St. Louis?

    On your way to St. Louis, you’ll fly out from Phoenix Sky Harbor Intl. You’ll be landing at Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from Phoenix to St. Louis?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Phoenix to St. Louis flight route.

  • Which aircraft models fly most regularly from Phoenix to St. Louis?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Phoenix to St. Louis flight route.

  • Which airline alliances offer flights from Phoenix to St. Louis?

    oneworld is the only airline alliance operating flights between Phoenix and St. Louis.

  • On which days can I fly direct from Phoenix to St. Louis?

    There are nonstop flights from Phoenix to St. Louis on a daily basis.

  • Which is the best airline for flights from Phoenix to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Phoenix to St. Louis are Delta and United Airlines. With an average price for the route of $417 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $505 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Phoenix to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Phoenix is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Phoenix Sky Harbor Intl Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $65 or less one-way and $131 or less round-trip.
  • Both within and outside of the terminals of Sky Harbor International Airport (PHX) are designated locations for pets to relieve themselves. The airport has eight locations for dogs to relieve themselves, drink water, and stretch their legs during layovers (mitts for cleaning up provided).
  • Is your journey to Phoenix taking longer than you thought, and do you need to keep your vehicle at Sky Harbor International Airport for a longer period than you first planned? The covered parking garage and the open parking lot are available to passengers who need to keep their automobiles at PHX for an extended period.
  • No matter which airline a customer is flying with, they are eligible to get a reduced rate to enter any of the lounges located in PHX. This is the greatest choice if you need to connect planes, if your trip was canceled, if you need to check in early in the morning, or if you want breakfast.
  • Phoenix Sky Harbor International Airport and Lambert International Airport (STL) provide services to assist guests who may have difficulties moving about the airport. Feel free to inquire about the assistance in renting a wheelchair and navigating the airport either before or after you go on your vacation. If you wish to use these services, you must give the airline plenty of notice in advance.
  • It is highly advised to pick up your rental automobile from Lambert International Airport as soon as you touch down. Passengers do not have to wait for a shuttle to a far-off place since there is a vehicle rental counter at the airport. Time is of the essence when it comes to renting an automobile.
See more tips

Prefer to fly non-stop from Phoenix to St. Louis?

Find which airlines fly direct from Sky Harbor Intl to Lambert-St Louis, which days they fly and book direct flights.

Nonstop departures

Phoenix Sky Harbor Intl to Lambert-St Louis

Monday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights

Nonstop returns

Lambert-St Louis to Phoenix Sky Harbor Intl

Monday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Tuesday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Wednesday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Thursday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

Friday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Saturday

Alaska Airlines, American Airlines, Frontier, +1 more

Alaska Airlines, American Airlines, +2 more

Sunday

Alaska Airlines, American Airlines, Southwest

Alaska Airlines, American Airlines, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from Phoenix to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
7.4Food
8.0Entertainment
8.2Boarding
7.9Comfort
8.6Crew
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

This was a Lufthansa flight, not United. The CSA at the counter, Ashley, was not only incompetent, but quite rude. Me and two other PAX waited over 7 minutes standing in front of her and another CSA and they ignored us. We joked that we must have accidently taken invisibility pills. She could have at least said "I'll be with you in a moment, I'm currently....". I could go on about how rude she and the other CSAs were (whispering, not communicating with me, blaming the situation on others, etc.). She would not work for me. Then, she gave me literally the worst seat on the plane. the worst. My seat kept getting bumped (rammed twice by the crew with their carts and about every 5 minutes by someone using the bathroom), listening to the bathroom all night, crowded seat, etc.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

First flight of the day… MINIMUM FUEL! 15 minute landing delay at HOU due to fog turned into a 2+ hour delay! Rather than circle, they had to divert to another city to refuel! Sat on tarmac at Austin to refuel. We ALL missed our connections! The crew, including pilots, were clueless. Crew was really a mess. At HOU, Untied employees were exceedingly rude to all. It was pitiful.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

Re-checking our bags, the workers were not able to help us with boarding passes for the flight, told us to wait, then ignored us while they helped many other passengers. Until I got rude, they would have left us standing there, and even then they were very curt and dismissive in telling us where to get boarding passes printed. We made it to the gate just as they were starting to board passengers. It was just rude customer service.

While I received notice that AA 478 was delayed, the flight departed PHX and arrived PHL more than two hours late. The first class cabin service was mediocre; there were no pre-departure beverages offered; there were no warm mixed nuts served with cocktails; there was no personal greeting to me as an Executive Platinum member by the first class flight attendant. While the flight operated safely, its arrival at 0219 in the morning in PHL ended a very long day. I do not feel that American provided first class service.

Absolutely filthy flight and not equipped for a trans US

Turn on the heat. Flight was way too cold from Arizona to Chicago.

Poor on time performance. Flight was delayed due to a lightbulb. No updates from the pilot. Plane was dirty and hot, AC didn't work well.

Being back games on the in-flight entertainment. Also your flight attendants need a break, raise, or overall attitude adjustment.

Because our flight from marsh Harbor to Fort Lauderdale was over three hours delayed it caused us to miss our flight in Fort Lauderdale. Because we missed that flight, it cost us nearly $100 apiece for four different travelers which totaled nearly $400. We are seeking a reimbursement for the flight that we missed in Fort Lauderdale Florida.

Flight expected to leave at 6:40 pm ended leaving at 8:00 am the following day. I slept in a cold airport. Never again Spirit for me…

The flight was on time and nice as always for me with spirit but the cabin crew were not good. They left the lights on on a red eye for the entire flight.

This was the return leg of my journey with Spirit Airlines. Despite its reputation, I found no issues as it got me from point A to B safely and without delay, especially with no mechanical delays, which is fantastic in my book! The staff, from ground crew to cabin crew, were all pleasant and hassle-free. The flight was smooth from takeoff to landing. I have absolutely no complaints about this no-frills airline!

I got a one-way, last-minute nonstop flight from PDX to BWI for only $125. Yes, I got nicked $79 more for a checked suitcase and $89 more for the BIG SEAT option, but it was worth it, even with $4.50 for coffee and $10 for a snack (the latter no different than any other airline). The grand total was still less flying on any other airline.

It was the worst ever, i will be filing a lawsuit to get a refund. Our flight was delayed 4 hours so we would miss our connecting flight, we were not rebooked to our destination the same day, we were not offered any options to get home on the same day despite being clear that we absolutely cannot get stranded at night due to family, we were forced to book our own flights on a different airline to get home, and spririt is refusing a refund because our flight wasn't cancelled, only delayed. oh yeah, and they lost our luggage on the first part of the trip and you cannot get a hold of customer service when anything goes wrong, on hold for 30+ minutes. and their app breaks so you can't use that either.

This recognisable no-frills airline gets me from point-A to point-B. I was able to get to Chicago without stress. The checked baggage collection and reclaim could be improved.

The crew was the best and very accommodating I know you don't offer any complimentary items but water and coffee will not break the bank !!

My flight was cancelled!!! I had to spend 200.00 on another flight!!

The whole day was a nightmare. Flight extremely late. Boarding was a mess of a nightmare.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Check in online was easy. Seats aren’t very comfortable

Fecal matter in seat back pocket. Presumably from a kids diaper.

Worst airline to travel with. They treat you like a prisoner in a jailhouse barking out orders and threats. Nickle and dime you to the same price or higher than a respectable airline like one of the big 3 . Might as well fly with standard airlines

Book cheap flights from Phoenix to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Phoenix to St. Louis found on KAYAK in the last 72 hours.
7/10mié.
nonstopFrontier
3h 01mPHX-STL
$59
6/11mar.
nonstopAmerican Airlines
2h 54mPHX-STL
$66
7/4jue.
1 stopSpirit Airlines
24h 26mPHX-STL
$77
7/19vie.
nonstopFrontier
3h 01mPHX-STL
$79
6/7vie.
1 stopDelta
5h 21mPHX-STL
$108
6/2dom.
1 stopSpirit Airlines
24h 33mPHX-STL
$147
6/2dom.
nonstopAmerican Airlines
3h 00mPHX-STL
$161
7/4jue.
1 stopDelta
6h 11mPHX-STL
$288
7/10mié.
2 stopsUnited Airlines
18h 08mPHX-STL
$323
5/31vie.
2 stopsUnited Airlines
15h 21mPHX-STL
$390

Search by stops

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Last minute flights from Phoenix to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Phoenix to St. Louis that are departing in the next 10 days.
6/1sáb.
nonstopAmerican Airlines
3h 00mPHX-STL
6/5mié.
nonstopAmerican Airlines
3h 17mSTL-PHX
$201
6/1sáb.
multi-stopFrontier
12h 01mPHX-STL
6/5mié.
nonstopFrontier
3h 18mSTL-PHX
$221
6/1sáb.
multi-stop
12h 01mPHX-STL
6/5mié.
multi-stop
23h 05mSTL-PHX
$268
5/31vie.
nonstopFrontier
2h 59mPHX-STL
6/2dom.
multi-stopFrontier
17h 23mSTL-PHX
$316
5/31vie.
nonstopAmerican Airlines
3h 00mPHX-STL
6/2dom.
nonstopAmerican Airlines
3h 24mSTL-PHX
$321
5/31vie.
multi-stopDelta
5h 47mPHX-STL
6/2dom.
multi-stopDelta
6h 23mSTL-PHX
$340
5/30jue.
multi-stopAmerican Airlines
6h 54mPHX-STL
6/2dom.
nonstopAmerican Airlines
3h 24mSTL-PHX
$482
6/1sáb.
multi-stopUnited Airlines
8h 43mPHX-STL
6/5mié.
multi-stopUnited Airlines
13h 13mSTL-PHX
$528
5/31vie.
multi-stopUnited Airlines
7h 41mPHX-STL
6/2dom.
multi-stopUnited Airlines
6h 25mSTL-PHX
$865
6/1sáb.
multi-stopAlaska Airlines
14h 59mPHX-STL
6/5mié.
multi-stopAlaska Airlines
15h 40mSTL-PHX
$1,035

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Phoenix - St. Louis Flights

Departure:

Phoenix (PHX)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Phoenix

Cabin classes:

$1,248
$1,108
$1,236
$88