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Find cheap flights from Boston to Bulgaria from $297

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Bulgaria departing on 7/5. 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
Thu 7/11
Thu 7/18

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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$481
Varna
Varna1 stop$949

Good to know

Low season

January

High season

July

Cheapest flight

$297
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 9% 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 1910 reviews
7.8Boarding
7.3Food
7.1Entertainment
7.5Comfort
8.4Crew
Airline reviews

Wonderful experience! The crew was outstanding and amazing from check in to gate to flight crew! Amazing. Thank you!

10.0 ExcellentAnonymous, Jun 2024ORD - ZRH
Read more about SWISS reviews

Wonderful experience! The crew was outstanding and amazing from check in to gate to flight crew! Amazing. Thank you!

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.

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.

The entertainment wasn’t playing in the app or online.

Lady was a bit rude during boarding and I was being nice to her.

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.

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

United delayed the flight to assist customers to make the connection. The Ohara customs area was overwhelm which created an issue for customers trying to make the Little Rock connection. The delayed allow several customers to make the final flight into Little Rock.

Missed our flight to London and we were put on coach seats to Munich.

Terrible. Missed our flight to Newark as well as our flight to London. Complete disaster

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.

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
$481
10/13Sun
1 stop
27h 55mBOS-SOF
10/21Mon
1 stop
22h 25mSOF-BOS
$482
10/22Tue
1 stopLufthansa
13h 05mBOS-SOF
11/8Fri
1 stopLufthansa
11h 50mSOF-BOS
$505
11/11Mon
1 stopBritish Airways
13h 50mBOS-SOF
11/25Mon
1 stopBritish Airways
27h 35mSOF-BOS
$510
11/11Mon
2 stopsBritish Airways
14h 39mBOS-SOF
11/25Mon
1 stopBritish Airways
26h 25mSOF-BOS
$515
10/22Tue
1 stopLufthansa
15h 40mBOS-SOF
11/8Fri
2 stopsLufthansa
14h 15mSOF-BOS
$522
9/11Wed
1 stopTurkish Airlines
34h 05mBOS-SOF
9/25Wed
1 stopTurkish Airlines
29h 45mSOF-BOS
$556
9/22Sun
1 stopTurkish Airlines
15h 30mBOS-SOF
10/2Wed
1 stopTurkish Airlines
17h 35mSOF-BOS
$590
11/7Thu
1 stopUnited Airlines
14h 10mBOS-SOF
11/21Thu
2 stopsUnited Airlines
17h 10mSOF-BOS
$592
10/9Wed
1 stopUnited Airlines
17h 35mBOS-SOF
10/16Wed
2 stopsUnited Airlines
17h 57mSOF-BOS
$677

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Recent one-way flight deals

7/5Fri
2 stops
34h 19mBOS-SOF
$297
7/4Thu
2 stops
42h 09mBOS-SOF
$310
7/4Thu
3 stops
31h 44mBOS-SOF
$324
6/29Sat
2 stops
44h 19mBOS-VAR
$326
8/18Sun
1 stopTurkish Airlines
34h 05mBOS-SOF
$450
7/4Thu
3 stopsUnited Airlines
20h 10mBOS-SOF
$798
6/30Sun
1 stopLufthansa
27h 30mBOS-VAR
$867
7/2Tue
1 stopLufthansa
31h 25mBOS-VAR
$881
6/29Sat
1 stopTurkish Airlines
21h 50mBOS-VAR
$1,006
6/28Fri
1 stopSWISS
28h 50mBOS-VAR
$1,496

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Last minute flights from Boston to Bulgaria

Last minute flight, train and bus deals

6/16Sun
multi-stopLufthansa
17h 35mBOS-SOF
8/7Wed
multi-stopLufthansa
18h 50mSOF-BOS
$916
6/16Sun
multi-stopLufthansa
18h 00mBOS-SOF
8/7Wed
multi-stopLufthansa
18h 50mSOF-BOS
$934
6/16Sun
multi-stopSWISS
29h 25mBOS-SOF
8/6Tue
multi-stopSWISS
14h 10mSOF-BOS
$957
6/16Sun
multi-stopSWISS
12h 00mBOS-SOF
8/6Tue
multi-stopSWISS
14h 10mSOF-BOS
$977
6/16Sun
multi-stopUnited Airlines
18h 00mBOS-SOF
8/9Fri
multi-stopUnited Airlines
12h 50mSOF-BOS
$997
6/16Sun
multi-stopSWISS
29h 25mBOS-SOF
8/5Mon
multi-stopSWISS
11h 25mSOF-BOS
$1,008
6/16Sun
multi-stopUnited Airlines
18h 00mBOS-SOF
8/10Sat
multi-stopUnited Airlines
18h 50mSOF-BOS
$1,066
6/13Thu
multi-stop
28h 34mBOS-SOF
8/7Wed
multi-stop
12h 55mSOF-BOS
$1,127
6/13Thu
multi-stop
28h 34mBOS-SOF
8/9Fri
multi-stop
12h 50mSOF-BOS
$1,137
6/14Fri
multi-stopAustrian Airlines
14h 15mBOS-SOF
8/9Fri
multi-stopAustrian Airlines
12h 50mSOF-BOS
$1,568

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Boston - Bulgaria Flights

Departure:

Boston (BOS)United States

Return flight deals:

Bulgaria - Boston

Cabin classes: