Which layover airport has the shortest travel time from Sofia to Boston?

Flights connecting via Munich (MUC) have the shortest average one-way travel time: 11h 53m.

Which layover airport offers the lowest fares from Sofia to Boston?

Flights via London (LHR) offer the lowest average round-trip price of $531.

Which airport is the most popular layover for flights between Sofia and Boston?

Amsterdam (AMS) was the most common stop: 26% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Boston?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Boston from Sofia according to our data. Lufthansa is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 7 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Sofia to Boston?

Vienna (VIE) has the shortest average layover time for this route: 1h 49m.

What is the cheapest airline that flies from Sofia to Boston Logan Intl?

British Airways is the most popular carrier operating from Sofia to Boston Logan Intl

When did momondo last update prices for flights from Sofia Airport to Boston Logan Intl Airport?

Prices for flights from Sofia Airport to Boston Logan Intl Airport are updated daily.

How many operators does momondo search for flights from Sofia Airport to Boston Logan Intl Airport?

There are 7 operators available for flights from Sofia Airport to Boston Logan Intl Airport as of February 2026.

How old do you have to be to fly from Sofia Airport to Boston Logan Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Boston Logan Intl Airport.

What documentation or ID do you need to fly to Boston Logan Intl Airport?

The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$359 Cheap Flights from Sofia to Boston in 2026

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Find the cheapest flights from Sofia to Boston

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9:35 am - 7:55 pm

SOF

BOS

17h 20m

1 stop

9:50 pm - 8:15 pm

BOS

SOF

15h 25m

1 stop

$620Turkish Airlines

Thu, Apr 16 - Wed, May 6

7:00 am - 2:20 pm

SOF

BOS

13h 20m

1 stop

7:30 pm - 2:05 pm

BOS

SOF

12h 35m

1 stop

$629Multiple Airlines

Thu, Mar 12 - Mon, Mar 23

7:00 am - 2:20 pm

SOF

BOS

13h 20m

1 stop

1:55 pm - 2:05 pm

BOS

SOF

18h 10m

2 stops

$633Multiple Airlines

Thu, Mar 12 - Mon, Mar 23

7:00 am - 1:25 pm

SOF

BOS

13h 25m

1 stop

6:30 pm - 1:55 pm

BOS

SOF

12h 25m

1 stop

$634Multiple Airlines

Mon, Feb 16 - Tue, Feb 24

7:00 am - 1:25 pm

SOF

BOS

13h 25m

1 stop

1:04 pm - 1:55 pm

BOS

SOF

17h 51m

2 stops

$639Multiple Airlines

Mon, Feb 16 - Tue, Feb 24

7:00 am - 6:27 pm

SOF

BOS

17h 27m

2 stops

1:55 pm - 2:05 pm

BOS

SOF

18h 10m

2 stops

$643Multiple Airlines

Thu, Mar 12 - Mon, Mar 23

7:00 am - 1:25 pm

SOF

BOS

13h 25m

1 stop

12:50 pm - 2:05 pm

BOS

SOF

18h 15m

2 stops

$645KLM

Mon, Feb 16 - Mon, Feb 23

7:00 am - 6:27 pm

SOF

BOS

17h 27m

2 stops

1:55 pm - 2:05 pm

BOS

SOF

18h 10m

2 stops

$649Multiple Airlines

Thu, Mar 12 - Mon, Mar 23

7:30 pm - 2:40 pm

SOF

BOS

26h 10m

2 stops

8:05 pm - 11:10 pm

BOS

SOF

20h 05m

1 stop

$657Multiple Airlines

Thu, Apr 16 - Wed, May 6

2:05 pm - 7:55 pm

SOF

BOS

12h 50m

1 stop

9:50 pm - 8:45 am

BOS

SOF

27h 55m

1 stop

$659Turkish Airlines

Sun, May 31 - Sun, Aug 30

KLM flights from Sofia to Boston

Our best KLM deals on Sofia to Boston flight tickets

KLM

Feb 16

SOF7:00 amSofia

13h 25m

1 stop

BOS1:25 pmBoston Logan Intl

Feb 23

BOS12:50 pmBoston Logan Intl

18h 15m

2 stops

SOF2:05 pmSofia

$645

KLM

Apr 16

SOF7:00 amSofia

16h 25m

1 stop

BOS4:25 pmBoston Logan Intl

May 6

BOS4:35 pmBoston Logan Intl

14h 25m

1 stop

SOF2:00 pmSofia

$679

KLM

Feb 14

SOF7:00 amSofia

13h 25m

1 stop

BOS1:25 pmBoston Logan Intl

Mar 2

BOS7:10 pmBoston Logan Intl

11h 55m

1 stop

SOF2:05 pmSofia

$804

Air Canada flights from Sofia to Boston

Our best Air Canada deals on Sofia to Boston flight tickets

Air Canada

May 29

SOF6:20 amSofia

34h 25m

2 stops

BOS9:45 amBoston Logan Intl

Sep 1

BOS5:45 amBoston Logan Intl

29h 55m

2 stops

SOF6:40 pmSofia

$704

Air Canada

Jun 1

SOF6:20 amSofia

15h 27m

2 stops

BOS2:47 pmBoston Logan Intl

Aug 29

BOS6:50 pmBoston Logan Intl

33h 10m

2 stops

SOF11:00 amSofia

$706

Air Canada

Jun 18

SOF6:30 amSofia

42h 12m

2 stops

BOS5:42 pmBoston Logan Intl

Jul 5

BOS10:40 amBoston Logan Intl

17h 20m

2 stops

SOF11:00 amSofia

$708

Fly from

Fly to

Route

Depart

Return

Price

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 4/16

9:35 am-7:55 pm

1 stop17h 20m

Boston Logan Intl

Wed 5/6

9:50 pm-8:15 pm

1 stop15h 25m

$620

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 3/12

7:00 am-2:20 pm

1 stop13h 20m

Boston Logan Intl

Mon 3/23

7:30 pm-2:05 pm

1 stop12h 35m

$629

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 3/12

7:00 am-2:20 pm

1 stop13h 20m

Boston Logan Intl

Mon 3/23

1:55 pm-2:05 pm

2 stops18h 10m

$633

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 2/16

7:00 am-1:25 pm

1 stop13h 25m

Boston Logan Intl

Tue 2/24

6:30 pm-1:55 pm

1 stop12h 25m

$634

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 2/16

7:00 am-1:25 pm

1 stop13h 25m

Boston Logan Intl

Tue 2/24

1:04 pm-1:55 pm

2 stops17h 51m

$639

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 3/12

7:00 am-6:27 pm

2 stops17h 27m

Boston Logan Intl

Mon 3/23

1:55 pm-2:05 pm

2 stops18h 10m

$643

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 2/16

7:00 am-1:25 pm

1 stop13h 25m

Boston Logan Intl

Mon 2/23

12:50 pm-2:05 pm

2 stops18h 15m

$645

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 3/12

7:00 am-6:27 pm

2 stops17h 27m

Boston Logan Intl

Mon 3/23

1:55 pm-2:05 pm

2 stops18h 10m

$649

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 4/16

7:30 pm-2:40 pm

2 stops26h 10m

Boston Logan Intl

Wed 5/6

8:05 pm-11:10 pm

1 stop20h 05m

$657

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 5/31

2:05 pm-7:55 pm

1 stop12h 50m

Boston Logan Intl

Sun 8/30

9:50 pm-8:45 am

1 stop27h 55m

$659

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sofia to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to Boston?

In general, February is the cheapest month to fly from Sofia to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $618. If you aren’t able to travel during the month of February, then book flights to Boston from Sofia during July instead. Flights to Boston in July, while not as cheap as those in February, still average around $656.

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

You are more likely to see cheaper flights to Boston from Sofia when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $706 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Sofia for as low as $520 on momondo.

Can stopping save me money on Sofia to Boston flights?

You could potentially save up to 28% on your flight if you consider stops on a Sofia to Boston flight.

How have Sofia to Boston flight prices changed over time?

As of February 2026, prices for Sofia to Boston flights are approximately 0% cheaper when compared to flights at the same time last year.

When to book flights from Sofia to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Boston according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sofia to Boston (SOF to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Boston

Fastest flight time	13h 00m
Direct flights	None

The fastest flight from Sofia to Boston takes 13h 00m

There are no direct flights from Sofia to Boston. There are no popular flight routes from Sofia to Boston.

Search flight deals

How far is Sofia to Boston Logan Intl by plane?
The distance between Sofia and Boston Logan Intl is about 4519.3 mi. In terms of flight time, this usually takes a little over 13h 00m.
When did momondo last update prices for flights from Sofia Airport to Boston Logan Intl Airport?
Prices for flights from Sofia Airport to Boston Logan Intl Airport are updated daily.
How many operators does momondo search for flights from Sofia Airport to Boston Logan Intl Airport?
There are 7 operators available for flights from Sofia Airport to Boston Logan Intl Airport as of February 2026.
How old do you have to be to fly from Sofia Airport to Boston Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Sofia to Boston?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Sofia to Boston is Lufthansa (40% of total bookings). The next most popular airlines are Turkish Airlines (17%), United Airlines (16%), and KLM (14%).

Best airlines flying from Sofia to Boston

Compare and see reviews for airlines that fly from Sofia to Boston with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $520	Free Cancellation	Rating 7.3 4,210 reviews	Search Turkish Airlines flights
Air France	PriceFrom $561	Free Cancellation	Rating 7.4 1,531 reviews	Search Air France flights
KLM	PriceFrom $562	Free Cancellation	Rating 7.7 1,448 reviews	Search KLM flights
United Airlines	PriceFrom $586	Free Cancellation	Rating 7.4 9,235 reviews	Search United Airlines flights
Lufthansa	PriceFrom $586	Free Cancellation	Rating 6.8 7,758 reviews	Search Lufthansa flights
Austrian Airlines	PriceFrom $588	Free Cancellation	Rating 7.5 896 reviews	Search Austrian Airlines flights
ITA Airways	PriceFrom $819	Free Cancellation	Rating 6.7 1,144 reviews	Search ITA Airways flights

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Why use momondo?

Why should I use momondo to find a flight deal from Sofia to Boston?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boston from Sofia.

Can I find flights from Sofia to Boston with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Boston from Sofia with this policy.

How can momondo help me find flights from Sofia to Boston?

momondo helps you find the best flight between Sofia and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Sofia to Boston right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Sofia to Boston flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.