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Find cheap flights from Portland to the United Kingdom from $558

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to the United Kingdom departing on 10/5. 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
Sat 7/6
Sat 7/13

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Best United Kingdom Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

London
London1 stop$558
Edinburgh
Edinburgh2 stops$610
Manchester
Manchester2 stops$1,156

Good to know

Low season

December

High season

May

Cheapest flight

$558
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Portland to London Gatwick Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Portland to the United Kingdom?

    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 Portland to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to the United Kingdom from Portland 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 Portland to the United Kingdom?

    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 the United Kingdom with an airline and back to Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to the United Kingdom?

    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 the United Kingdom from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United Kingdom

  • Morning departure is around 17% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Portland to the United Kingdom

Need help choosing which airline to fly with from Portland to the United Kingdom? 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 10368 reviews
8.0Entertainment
7.4Food
7.9Comfort
8.2Boarding
8.6Crew
Airline reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

4.0 OkayDavwinder Singh, Jun 2024SEA - ATL
Read more about Delta reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

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

Quick and efficient as always. Air France managed to loose and damage my luggage that never made it onto my KLM flight.

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

no issues at all... Kudos to the food. This time was really really good

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

The worst airline. Cancelled flight 30 min before boarding and rebooked on flight after 3 days.

It was nice to be on a legacy airline, people try at least.

I travel frequently. The flight was late again... KLM should really try and be on time

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

They put me on a chair in between two men, one overweight who was almost falling on top of me, and the other was even uncomfortable because I was half falling because of what the other was pushing me. I stayed with. my feet were swollen from fluid retention and from being unable to accommodate myself. it was very uncomfortable. I asked for help but they told me that the flight was full and they couldn't help me. I got off the plane almost unable to walk due to the inflammation. and then at FLL airport I asked for help because I couldn't go to my next flight, which was a connection.

The walk from baggage claim to the taxi is very difficult for older people I will never fly into JFK again. It is physically challenging

Overall fine but both ways for this trip was delayed.

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

The flight was excellent. The crew was welcoming and attentive.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

We were told that our flight would be delayed for 90+ minutes because of weather, so we went to get something to eat only to have them randomly start boarding 15 minutes after the announcement, with no warning.

Entertainment... No earphones passed out. Many including me couldn't use the TV. Legroom was good. Crew was indifferent and a bit surly. Free wifi was a nice convenience. Check in desk location was unknown. Gate number on the boarding passes was wrong.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Everything was pretty good except for food. They need to improve on it compared to other airlines.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the premium paid for the first class ticket

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I flew Delta last week and United Airlines is a poor substitute mechanical problems with the plane and shitty food among other things made my travel experience what’s become to be expected from United no way is it ever worth the money they make us pay

I had a great flight. Everything went smoothly and the flight arrived early.

Missed this flight due to the first AA flight delay

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

Book cheap flights from Portland to the United Kingdom

Recent round-trip flight deals

10/5Sat
1 stopJetBlue
13h 49mPWM-LGW
10/12Sat
1 stopJetBlue
15h 59mLGW-PWM
$558
9/28Sat
2 stopsUnited Airlines
30h 23mPWM-EDI
10/8Tue
2 stopsUnited Airlines
19h 59mEDI-PWM
$610
9/24Tue
1 stopAmerican Airlines
13h 58mPWM-LHR
10/1Tue
2 stopsAmerican Airlines
16h 25mLHR-PWM
$617
9/24Tue
2 stopsAmerican Airlines
13h 03mPWM-LHR
10/1Tue
2 stopsAmerican Airlines
16h 25mLHR-PWM
$620
9/24Tue
1 stopKLM
12h 13mPWM-LHR
10/1Tue
1 stopKLM
18h 18mLHR-PWM
$648
10/27Sun
2 stops
16h 38mPWM-EDI
11/3Sun
2 stops
20h 49mEDI-PWM
$657
9/10Tue
1 stopKLM
12h 13mPWM-LHR
9/20Fri
1 stopKLM
18h 18mLHR-PWM
$683
9/25Wed
1 stopDelta
12h 13mPWM-LHR
9/29Sun
2 stopsDelta
20h 08mLHR-PWM
$691
9/25Wed
2 stopsDelta
16h 17mPWM-LHR
9/29Sun
2 stopsDelta
20h 08mLHR-PWM
$696
10/26Sat
2 stops
16h 13mPWM-EDI
11/3Sun
2 stops
20h 41mEDI-PWM
$707

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Recent one-way flight deals

7/1Mon
3 stops
29h 54mPWM-LHR
$571
7/1Mon
2 stopsUnited Airlines
14h 38mPWM-LHR
$577
6/15Sat
3 stops
50h 39mPWM-LGW
$595
6/15Sat
3 stops
41h 23mPWM-LHR
$666
6/15Sat
3 stops
41h 54mPWM-SEN
$703
6/15Sat
3 stops
52h 34mPWM-LCY
$745
6/15Sat
2 stopsAir Canada
33h 50mPWM-LHR
$782
6/15Sat
1 stopJetBlue
17h 10mPWM-LGW
$797
6/15Sat
1 stopAmerican Airlines
33h 53mPWM-LHR
$801
7/1Mon
2 stopsTAP AIR PORTUGAL
43h 00mPWM-LGW
$807

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Last minute flights from Portland to the United Kingdom

Last minute flight, train and bus deals

6/10Mon
multi-stopAmerican Airlines
14h 21mPWM-LHR
6/16Sun
multi-stopAmerican Airlines
17h 50mLHR-PWM
$1,215
6/10Mon
multi-stopUnited Airlines
11h 30mPWM-LHR
6/16Sun
multi-stopUnited Airlines
22h 08mLHR-PWM
$1,216
6/10Mon
multi-stopAmerican Airlines
13h 56mPWM-LHR
6/16Sun
multi-stopAmerican Airlines
16h 23mLHR-PWM
$1,220
6/8Sat
multi-stopWestJet
23h 23mPWM-EDI
6/12Wed
multi-stopWestJet
31h 08mEDI-PWM
$1,274
6/10Mon
multi-stop
27h 31mPWM-LHR
6/16Sun
multi-stop
26h 04mLHR-PWM
$1,867
6/10Mon
multi-stop
23h 55mPWM-LHR
6/16Sun
multi-stop
31h 24mLHR-PWM
$1,941
6/8Sat
multi-stopKLM
14h 57mPWM-EDI
6/12Wed
multi-stopKLM
15h 49mEDI-PWM
$3,743
6/8Sat
multi-stopDelta
18h 38mPWM-EDI
6/12Wed
multi-stopDelta
14h 53mEDI-PWM
$3,747
6/8Sat
multi-stop
19h 40mPWM-EDI
6/12Wed
multi-stop
14h 26mEDI-PWM
$4,611

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Portland - United Kingdom Flights

Departure:

Portland (PWM)United States

Return flight deals:

United Kingdom - Portland

Cabin classes: