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BOS - SOF

$308 Find cheap flights from Boston to Sofia

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 Sofia departing on 7/7. 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
Sun 7/7
Sun 7/14

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sofia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Sofia.
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Cheap flight deals from Boston to Sofia (BOS-SOF)

 
These are the cheapest deals for flights from Boston to Sofia currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Boston to Sofia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Boston to Sofia.

Recent one-way flight deals from Boston to Sofia

Only flying one-way? Below are some of the best one-way flight deals from Boston to Sofia found on KAYAK recently.

Recent last minute flight deals from Boston to Sofia

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Boston to Sofia.

Recent direct flight deals from Boston to Sofia

The latest deals for direct flights from Boston to Sofia so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Boston to Sofia

Find recent round-trip train or bus tickets from Boston to Sofia.

All round-trip flight deals to Sofia

The cheapest plane tickets to Sofia found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:55 pm - 5:10 pmBOS-SOF
15h 15m1 stop
5:25 pm - 12:50 pmSOF-BOS
26h 25m1 stop
$510British Airways
Find Deal
Mon, Nov 4 - Mon, Nov 18
6:32 pm - 5:10 pmBOS-SOF
15h 38m2 stops
5:25 pm - 12:50 pmSOF-BOS
26h 25m1 stop
$515British Airways
Find Deal
Mon, Nov 4 - Mon, Nov 18
3:40 pm - 10:25 pmBOS-SOF
23h 45m2 stops
6:00 am - 3:59 pmSOF-BOS
40h 59m2 stops
$527United Airlines
Find Deal
Wed, Nov 6 - Wed, Nov 20
8:20 pm - 10:45 pmBOS-SOF
19h 25m1 stop
6:10 am - 6:35 pmSOF-BOS
19h 25m1 stop
$532Lufthansa
Find Deal
Wed, Dec 4 - Wed, Dec 18
9:50 pm - 8:30 amBOS-SOF
27h 40m1 stop
9:20 am - 7:55 pmSOF-BOS
17h 35m1 stop
$556Turkish Airlines
Find Deal
Tue, Oct 8 - Tue, Oct 22
8:20 pm - 10:45 pmBOS-SOF
19h 25m1 stop
1:45 pm - 6:35 pmSOF-BOS
11h 50m1 stop
$582Lufthansa
Find Deal
Sun, Nov 3 - Sun, Nov 17
9:00 pm - 6:10 pmBOS-SOF
14h 10m1 stop
6:05 am - 3:59 pmSOF-BOS
40h 54m2 stops
$588United Airlines
Find Deal
Thu, Nov 7 - Thu, Nov 21
5:10 pm - 1:10 pmBOS-SOF
13h 00m1 stop
12:55 pm - 3:20 pmSOF-BOS
33h 25m2 stops
$593SWISS
Find Deal
Tue, Oct 8 - Tue, Oct 22
9:50 pm - 2:55 pmBOS-SOF
34h 05m1 stop
3:45 pm - 7:55 pmSOF-BOS
35h 10m1 stop
$595Turkish Airlines
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Wed, Sep 4 - Wed, Sep 18
5:10 pm - 12:10 pmBOS-SOF
12h 00m2 stops
12:55 pm - 3:20 pmSOF-BOS
33h 25m2 stops
$612SWISS
Find Deal
Tue, Oct 8 - Tue, Oct 22
7:15 pm - 9:20 amBOS-SOF
31h 05m2 stops
Sun, Jul 7
7:15 pm - 5:15 pmBOS-SOF
39h 00m3 stops
Sun, Jul 7
3:26 pm - 11:30 amBOS-SOF
37h 04m3 stops
Thu, Jul 4
7:15 pm - 8:45 amBOS-SOF
30h 30m2 stops
Fri, Jul 5
7:15 pm - 12:25 amBOS-SOF
46h 10m3 stops
Fri, Jul 5
7:15 pm - 6:55 pmBOS-SOF
40h 40m2 stops
Thu, Jul 4
11:35 pm - 5:15 pmBOS-SOF
58h 40m3 stops
Sat, Jul 13
7:15 pm - 11:45 amBOS-SOF
33h 30m2 stops
Sat, Jul 6
7:15 pm - 12:05 pmBOS-SOF
33h 50m2 stops
Sat, Jul 13
9:00 am - 11:00 pmBOS-SOF
31h 00m3 stops
$4,057United Airlines
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Mon, Jul 29
8:05 pm - 11:00 pmBOS-SOF
19h 55m1 stop
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,011Lufthansa
Find Deal
Fri, Jun 7 - Fri, Jun 14
9:45 pm - 11:00 pmBOS-SOF
18h 15m2 stops
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,030United Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14
9:45 pm - 11:00 pmBOS-SOF
18h 15m2 stops
6:00 am - 6:43 pmSOF-BOS
19h 43m2 stops
$1,036United Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14
8:05 pm - 10:35 pmBOS-SOF
19h 30m2 stops
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,039Lufthansa
Find Deal
Fri, Jun 7 - Fri, Jun 14
9:45 pm - 6:45 pmBOS-SOF
14h 00m2 stops
6:00 am - 9:57 pmSOF-BOS
22h 57m2 stops
$1,040United Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14
6:00 am - 5:10 pmBOS-SOF
28h 10m2 stops
6:00 pm - 1:40 pmSOF-BOS
26h 40m1 stop
$1,049ITA Airways
Find Deal
Fri, Jun 7 - Sun, Jun 16
8:05 pm - 11:00 pmBOS-SOF
19h 55m1 stop
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,081Lufthansa
Find Deal
Fri, Jun 7 - Sun, Jun 16
8:05 pm - 11:00 pmBOS-SOF
19h 55m1 stop
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,082United Airlines
Find Deal
Fri, Jun 7 - Sun, Jun 16
6:00 am - 5:10 pmBOS-SOF
28h 10m2 stops
6:00 pm - 1:40 pmSOF-BOS
26h 40m1 stop
$1,090ITA Airways
Find Deal
Fri, Jun 7 - Sun, Jun 16
5:10 pm - 11:00 pmBOS-SOF
22h 50m2 stops
6:00 am - 5:50 pmSOF-BOS
18h 50m1 stop
$1,100United Airlines
Find Deal
Fri, Jun 7 - Sun, Jun 16

Flights from Boston to Sofia - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Sofia 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 Boston to Sofia?

The average price of all flights from Boston to Sofia clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Sofia on a Tuesday and more expensive on a Friday. On your return trip to Boston, you should consider flying back on a Thursday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Boston to Sofia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Sofia, 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 Boston to Sofia is January, where tickets cost $637 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,187 and $1,141 respectively.

How far in advance should I book a flight from Boston to Sofia?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to Sofia, 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 Boston to Sofia, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 10 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$308
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

When to book flights from Boston to Sofia

Are your dates flexible? Find out the best times to travel from Boston to Sofia 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 flights from Boston to Sofia

  • What are the layover options on the flight route from Boston to Sofia?

    Your layover will automatically depend on the airline you’re traveling with because each airline on this route has its preferred airport for layovers. For example, Turkish Airlines has all its layovers on this route scheduled for Istanbul. Similarly, Lufthansa has its layovers scheduled for Frankfurt or Munich while SWISS Airlines is scheduled for Zurich.

  • Do I need a visa to fly to Sofia?

    As it stands, U.S. citizens traveling to Bulgaria are not required to carry visas on entry as long as they are traveling on a regular passport and don’t plan on staying for longer than 90 days. In fact, the only mandatory requirement is your passport, with a validity of at least three months beyond the departure date from Bulgaria and one blank page for entry stamps.

  • Is public transport available from Sofia International Airport (SOF)?

    Access to the city center from Sofia Airport is possible through a range of options including bus, metro, and taxi. Taking a taxi is the most convenient although the bus and metro offer an affordable option. The metro in particular is a faster option and typically operates round the clock at intervals of fifteen minutes. To catch the metro, head over to the Airport Metro Station located in Terminal 2 and take the Metro line M2, which leads directly to the city center station Serdika.

  • Which is the most sustainable airline flying this route?

    In these modern times, it is pivotal that we think about the environment. While flying is by no means a sustainable way to travel, there are measures we can take to make our trips more sustainable, and it starts with using a sustainable airline. Lufthansa and American Airlines are a few of the airlines serving this route that have already adopted the use of Sustainable Aviation Fuel.

  • What is the cheapest flight from Boston to Sofia?

    In the last 3 days, the lowest price for a flight from Boston to Sofia was $308 for a one-way ticket and $510 for a round-trip.

  • Do I need a passport to fly between Boston and Sofia?

    Yes

  • Which airports will I be using when flying from Boston to Sofia?

    When flying out of Boston you will be using Boston Logan Intl. You will be landing at Sofia, also known as Sofia.

  • Which aircraft models fly most regularly from Boston to Sofia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Sofia?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Boston and Sofia, with Star Alliance being the most commonly used for this route.

  • What is the most popular layover when flying to Sofia from Boston?

    Frankfurt am Main is the most popular layover city among KAYAK users traveling from Boston to Sofia.

  • Which is the best airline for flights from Boston to Sofia, SWISS or Austrian Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Sofia are SWISS and Austrian Airlines. With an average price for the route of $1,031 and an overall rating of 7.7, SWISS is the most popular choice. Austrian Airlines is also a great choice for the route, with an average price of $980 and an overall rating of 7.6.

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

    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 Sofia.

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

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

    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 Sofia with an airline and back to Boston with another airline. Booking your flights between Boston and SOF 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 Boston to Sofia?

    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 Sofia from Boston 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 Boston to Sofia

  • Business travelers looking to work while flying should book their flights with Lufthansa. It provides Wi-Fi to all passengers, allowing you to browse the internet, send emails, and check your social media while flying.
  • To get access to an airport lounge during your layover, consider booking your flight with an airline that has a lounge at the airport. For example, when you book with Lufthansa, you can access the Lufthansa Senator Lounge during your layover at Frankfurt Airport.
  • When you book an economy-class ticket with United Airlines, you can be upgraded to the next class at a lower cost compared to what you would’ve paid if you booked a first-class ticket from the get-go.
  • If you have booked your flight with Turkish Airlines, consider upgrading with the EcoFly promotion and get two checked bags plus a carry-on inclusive of your ticket instead of just one carry-on bag.
  • A quick way into Boston Logan International Airport (BOS) from downtown Boston is via taxi. They are available at every corner of the city and will take you directly to the airport terminal. When rush hour traffic is a problem, the Blue Line from South Station offers a great alternative.
See more tips

Top 5 airlines serving from Boston to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Boston to Sofia. 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 Boston to Sofia? 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 1929 reviews
7.8Boarding
8.4Crew
7.5Comfort
7.2Entertainment
7.4Food
Airline reviews

The pilot was wonderful and enthusiastic and introduced himself over the intercom. We all felt in good hands. Crew were all super friendly and especially the young , gentleman crew member. Everything Swiss airlines represents. Hospitality, friendly and professional. Thank you. Truly a memorable short flight.

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

The pilot was wonderful and enthusiastic and introduced himself over the intercom. We all felt in good hands. Crew were all super friendly and especially the young , gentleman crew member. Everything Swiss airlines represents. Hospitality, friendly and professional. Thank you. Truly a memorable short flight.

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.

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.

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.

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.

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

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

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 Sofia

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Sofia found on KAYAK in the last 72 hours.
7/7Sun
2 stops
31h 05mBOS-SOF
$308
7/7Sun
3 stops
39h 00mBOS-SOF
$332
7/4Thu
3 stops
37h 04mBOS-SOF
$338
7/5Fri
2 stops
30h 30mBOS-SOF
$343
7/5Fri
3 stops
46h 10mBOS-SOF
$355
7/4Thu
2 stops
40h 40mBOS-SOF
$368
7/13Sat
3 stops
58h 40mBOS-SOF
$388
7/6Sat
2 stops
33h 30mBOS-SOF
$423
7/13Sat
2 stops
33h 50mBOS-SOF
$431
7/29Mon
3 stopsUnited Airlines
31h 00mBOS-SOF
$4,057

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Last minute flights from Boston to Sofia

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 Boston to Sofia that are departing in the next 10 days.
6/7Fri
multi-stopLufthansa
19h 55mBOS-SOF
6/14Fri
multi-stopLufthansa
18h 50mSOF-BOS
$1,011
6/7Fri
multi-stopUnited Airlines
18h 15mBOS-SOF
6/14Fri
multi-stopUnited Airlines
18h 50mSOF-BOS
$1,030
6/7Fri
multi-stopUnited Airlines
18h 15mBOS-SOF
6/14Fri
multi-stopUnited Airlines
19h 43mSOF-BOS
$1,036
6/7Fri
multi-stopLufthansa
19h 30mBOS-SOF
6/14Fri
multi-stopLufthansa
18h 50mSOF-BOS
$1,039
6/7Fri
multi-stopUnited Airlines
14h 00mBOS-SOF
6/14Fri
multi-stopUnited Airlines
22h 57mSOF-BOS
$1,040
6/7Fri
multi-stopITA Airways
28h 10mBOS-SOF
6/16Sun
multi-stopITA Airways
26h 40mSOF-BOS
$1,049
6/7Fri
multi-stopLufthansa
19h 55mBOS-SOF
6/16Sun
multi-stopLufthansa
18h 50mSOF-BOS
$1,081
6/7Fri
multi-stopUnited Airlines
19h 55mBOS-SOF
6/16Sun
multi-stopUnited Airlines
18h 50mSOF-BOS
$1,082
6/7Fri
multi-stopITA Airways
28h 10mBOS-SOF
6/16Sun
multi-stopITA Airways
26h 40mSOF-BOS
$1,090
6/7Fri
multi-stopUnited Airlines
22h 50mBOS-SOF
6/16Sun
multi-stopUnited Airlines
18h 50mSOF-BOS
$1,100

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Boston - Sofia Flights

Departure:

Boston (BOS)United States

Destination:

Sofia (SOF)Bulgaria

Return flight deals:

Sofia - Boston

Cabin classes:

Browse destinations: