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Find cheap flights from Boston to Bulgaria from $485

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Bulgaria departing on 10/13. 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
Wed 7/10
Wed 7/17

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Best Bulgaria Flight Deals

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

Sofia
Sofia1 stop$485
Varna
Varna2 stops$1,130
Burgas
Burgas2 stops$1,478

Good to know

Low season

January

High season

July

Cheapest flight

$485
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Boston to Sofia

FAQs - booking Bulgaria flights

  • How does KAYAK find such low prices on flights from Boston to Bulgaria?

    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 Boston to Bulgaria.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bulgaria from Boston 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 Boston to Bulgaria?

    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 Bulgaria with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Bulgaria?

    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 Bulgaria from Boston 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 Bulgaria

  • Morning departure is around 33% 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 Boston to Bulgaria

Need help choosing which airline to fly with from Boston to Bulgaria? 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.
7.7
SWISSOverall score based on 1912 reviews
7.8Boarding
7.5Comfort
8.4Crew
7.3Food
7.1Entertainment
Airline reviews

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

2.0 MediocreRob, May 2024TPA - ZRH
Read more about SWISS reviews

I arrived 59 minutes before the flight in Tampa due to Massive traffic jam and the flight was closed and I was told that I’d simply have to “book a new ticket on line myself and the gate agents couldn’t help me”. Even though the flight was delayed over 30 minutes, (leaving one hour and 29 minutes before departure, they refused to assist in any way explaining that it’s automatic and there can be no exceptions. Horrible experience due to poor management at gate. I fly this option 2-3 times a year and have a good experience with the cabin crew etc. But, Tampa agents are not trained or allowed customer service. I once was a gate agent for USAir, I know times have changed, but forcing me to purchase a new ticket and complete indifference and inconvenience. No thanks

Crew members were good. Seats were packed and too tight .

Carry on luggage size for economy passengers significantly smaller than other airlines, so nearly all ecomy passengers had their bags taken and checked.

Had a short layover in Zurich, luggage marked expedite and short layover but still didn’t get luggage when arrived in Split until 3 days later even though husband got his.

On time flight, I requested wheelchair in Zurich , when I arrived they were no where to be found, I had one hour between flights I had to walk with great difficulty.

We had issues with upgrading our seats. The flight itself was fine.

Horrible experience. They "GAME" with seats they decided to play where you can`t select or get seat during check-in without paying and then forcing you to stay long line at the Customer Service at the gate to get a boarding ticket with seat assigned is pathetic. Will never fly with United again!

So terrible. They would not rebook me for a flight until 2 days. I had to spend so much money to get my own flight. They were rude and not helpful.

Swiss ground crew was again at its prime and although I’m United 1K (Star Alliance Gold) they created problems with my hand luggage - while other passengers were boarding with more handbags and larger hand luggages, were critical on my 2 young kids attending the lounge with me and boarding the plane with me on the priority lane.

Overall a good experience, the flight was on time, the crew very attentive and friendly. However the seats are too cramped, there is no space, and as soon as the person in front reclines the seat, it's literally in your face.

Overnight flight in the old style Business class, but still very good.

I was in business class, without the business class amenities. Large seat with lots of legroom, but no TV or bed. Food was okay, but I did enjoy the Turkish red wine.

Excellent service and comfort from the moment you check in. Flight crew is hyper focused on making passengers comfortable and at ease. It’s like a flying hotel!

Only chicken as a meat dish through out the flight

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

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

They canceled our flight last minute and we had to get another flight with twice the cost

Dinner was excellent - beef stew, the eggs for breakfast were only ok. It was soooo nice that there were so many options for movies and games.

Captain waited 45 minutes for late passengers boarding from Washington DC to Munich which was nice for them but caused our luggage to miss boarding our connection on to Bucharest. We then did not receive our luggage for about 48 hours after landing which was very inconvenient for our travel.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Check in in Albuquerque was awful. The people were great but they were over loaded. The procedures were terrible. We got through fine but it took 90+ minutes.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Boston Logan is a crummy airport - signage is terrible or lacking in areas. Boarding seemed to be a free for all and with all the different airlines speaking, you couldn't tell who was supposed to be where and when. Plain and simple, airlines should board from the back of the plane to the front. Also someone was sitting in my seat. By the time that was figured out, I had to place my overhead behind me which made de-planing more difficult. Logan is not Lufthansa's fault so that is not on them, Boarding is on them! Still, overall it was a Good Experience flying with Lufthansa. This is not my first flight with them...

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

There was a screaming child behind our seats. This prevented us from getting any sleep during the night.

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

Book cheap flights from Boston to Bulgaria

Recent round-trip flight deals

10/13Sun
1 stop
27h 55mBOS-SOF
10/21Mon
1 stop
22h 25mSOF-BOS
$485
11/6Wed
1 stop
14h 55mBOS-SOF
11/20Wed
2 stops
23h 34mSOF-BOS
$525
10/30Wed
2 stopsUnited Airlines
25h 10mBOS-SOF
11/6Wed
1 stopUnited Airlines
19h 30mSOF-BOS
$537
9/10Tue
1 stopTurkish Airlines
15h 30mBOS-SOF
9/24Tue
1 stopTurkish Airlines
29h 45mSOF-BOS
$556
12/6Fri
2 stopsUnited Airlines
27h 20mBOS-SOF
12/20Fri
2 stopsUnited Airlines
35h 29mSOF-BOS
$581
11/7Thu
1 stopLufthansa
18h 45mBOS-SOF
11/21Thu
1 stopLufthansa
19h 30mSOF-BOS
$582
10/14Mon
1 stopTurkish Airlines
34h 05mBOS-SOF
10/21Mon
1 stopTurkish Airlines
17h 35mSOF-BOS
$590
10/13Sun
1 stopBritish Airways
14h 10mBOS-SOF
10/22Tue
1 stopBritish Airways
26h 30mSOF-BOS
$631
10/13Sun
1 stopBritish Airways
14h 10mBOS-SOF
10/21Mon
2 stopsBritish Airways
25h 26mSOF-BOS
$641
10/13Sun
1 stopLufthansa
15h 40mBOS-SOF
10/20Sun
1 stopLufthansa
11h 55mSOF-BOS
$660

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Recent one-way flight deals

9/24Tue
3 stops
26h 45mBOS-VAR
$551
9/24Tue
2 stops
17h 50mBOS-VAR
$667
9/24Tue
1 stopLufthansa
27h 30mBOS-VAR
$768
9/24Tue
2 stopsLufthansa
36h 10mBOS-VAR
$2,941
9/24Tue
1 stopLufthansa
31h 25mBOS-VAR
$3,027

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Last minute flights from Boston to Bulgaria

Last minute flight, train and bus deals

6/11Tue
multi-stopUnited Airlines
15h 40mBOS-SOF
7/30Tue
multi-stopUnited Airlines
11h 55mSOF-BOS
$942
6/11Tue
multi-stop
24h 40mBOS-SOF
7/30Tue
multi-stop
29h 25mSOF-BOS
$948
6/11Tue
multi-stopSWISS
29h 25mBOS-SOF
7/30Tue
multi-stopSWISS
38h 10mSOF-BOS
$958
6/11Tue
multi-stop
20h 25mBOS-SOF
7/30Tue
multi-stop
42h 50mSOF-BOS
$1,027
6/13Thu
multi-stopTurkish Airlines
15h 30mBOS-SOF
6/15Sat
multi-stopTurkish Airlines
29h 45mSOF-BOS
$1,462
6/15Sat
multi-stopLufthansa
15h 40mBOS-SOF
6/25Tue
multi-stopLufthansa
11h 55mSOF-BOS
$1,463
6/15Sat
multi-stopTurkish Airlines
27h 40mBOS-SOF
8/4Sun
multi-stopTurkish Airlines
17h 35mSOF-BOS
$5,971
6/14Fri
multi-stopLufthansa
15h 40mBOS-SOF
8/4Sun
multi-stopLufthansa
11h 55mSOF-BOS
$7,389
6/14Fri
multi-stopBritish Airways
15h 40mBOS-SOF
8/1Thu
multi-stopBritish Airways
26h 35mSOF-BOS
$7,948
6/12Wed
multi-stopBritish Airways
18h 20mBOS-SOF
8/3Sat
multi-stopBritish Airways
23h 00mSOF-BOS
$8,098

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Boston - Bulgaria Flights

Departure:

Boston (BOS)United States

Return flight deals:

Bulgaria - Boston

Cabin classes: