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 8 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

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

Amsterdam (AMS) was the most common stop: 24% of momondo users choosing 1-stop flights on this route connected there.

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.

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 54m.

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

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

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 8 operators available for flights from Sofia Airport to Boston Logan Intl Airport as of December 2025.

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.

$384 Cheap Flights from Sofia to Boston in 2025/26

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5:00 am - 8:55 pmSOF-BOS

22h 55m2 stops

10:40 pm - 11:30 pmBOS-SOF

17h 50m1 stop

$473Multiple Airlines

Find Deal

Thu, Jan 22 - Sat, Jan 31

6:05 am - 8:55 pmSOF-BOS

45h 50m2 stops

10:50 pm - 12:15 pmBOS-SOF

30h 25m1 stop

$501Multiple Airlines

Find Deal

Wed, Jan 28 - Wed, Apr 8

11:15 am - 8:55 pmSOF-BOS

40h 40m2 stops

10:50 pm - 12:15 pmBOS-SOF

30h 25m1 stop

$537Multiple Airlines

Find Deal

Wed, Jan 14 - Wed, Apr 8

4:50 pm - 8:55 pmSOF-BOS

35h 05m1 stop

9:15 pm - 8:35 pmBOS-SOF

40h 20m2 stops

$563Multiple Airlines

Find Deal

Fri, Jan 16 - Fri, Jan 23

5:00 am - 5:50 pmSOF-BOS

19h 50m3 stops

7:50 pm - 6:50 pmBOS-SOF

16h 00m2 stops

$591Multiple Airlines

Find Deal

Fri, Jan 16 - Fri, Jan 23

6:00 am - 1:35 pmSOF-BOS

14h 35m1 stop

9:50 pm - 3:15 pmBOS-SOF

10h 25m1 stop

$599Multiple Airlines

Find Deal

Thu, Jan 22 - Wed, Feb 4

6:00 am - 1:35 pmSOF-BOS

14h 35m1 stop

8:40 pm - 6:20 pmBOS-SOF

14h 40m1 stop

$601Lufthansa

Find Deal

Thu, Jan 22 - Sat, Jan 31

6:00 am - 1:35 pmSOF-BOS

14h 35m1 stop

2:20 pm - 1:15 pmBOS-SOF

15h 55m2 stops

$602Lufthansa

Find Deal

Thu, Jan 22 - Wed, Feb 4

6:00 am - 7:42 pmSOF-BOS

20h 42m2 stops

2:27 pm - 1:15 pmBOS-SOF

15h 48m2 stops

$604United Airlines

Find Deal

Thu, Jan 22 - Sat, Jan 31

6:10 am - 7:42 pmSOF-BOS

20h 32m2 stops

9:30 am - 6:40 pmBOS-SOF

26h 10m2 stops

$605United Airlines

Find Deal

Wed, Jan 28 - Wed, Apr 8

Lufthansa flights from Sofia to Boston

Our best Lufthansa deals on Sofia to Boston flight tickets

Lufthansa

Jan 22

SOF6:00 amSofia

14h 35m

1 stop

BOS1:35 pmBoston Logan Intl

Jan 31

BOS8:40 pmBoston Logan Intl

14h 40m

1 stop

SOF6:20 pmSofia

$601

Find similar

Lufthansa

Jan 22

SOF6:00 amSofia

14h 35m

1 stop

BOS1:35 pmBoston Logan Intl

Feb 4

BOS2:20 pmBoston Logan Intl

15h 55m

2 stops

SOF1:15 pmSofia

$602

Find similar

Lufthansa

Mar 12

SOF6:00 amSofia

14h 10m

1 stop

BOS2:10 pmBoston Logan Intl

Mar 16

BOS2:15 pmBoston Logan Intl

17h 10m

2 stops

SOF1:25 pmSofia

$606

Find similar

United Airlines flights from Sofia to Boston

Our best United Airlines deals on Sofia to Boston flight tickets

United Airlines

Jan 22

SOF6:00 amSofia

20h 42m

2 stops

BOS7:42 pmBoston Logan Intl

Jan 31

BOS2:27 pmBoston Logan Intl

15h 48m

2 stops

SOF1:15 pmSofia

$604

Find similar

United Airlines

Jan 28

SOF6:10 amSofia

20h 32m

2 stops

BOS7:42 pmBoston Logan Intl

Apr 8

BOS9:30 amBoston Logan Intl

26h 10m

2 stops

SOF6:40 pmSofia

$605

Find similar

United Airlines

Jan 29

SOF2:35 pmSofia

28h 37m

2 stops

BOS12:12 pmBoston Logan Intl

Feb 2

BOS8:40 pmBoston Logan Intl

19h 05m

1 stop

SOF10:45 pmSofia

$607

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 1/22

5:00 am-8:55 pm

2 stops22h 55m

Boston Logan Intl

Sat 1/31

10:40 pm-11:30 pm

1 stop17h 50m

$473

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 1/28

6:05 am-8:55 pm

2 stops45h 50m

Boston Logan Intl

Wed 4/8

10:50 pm-12:15 pm

1 stop30h 25m

$501

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 1/14

11:15 am-8:55 pm

2 stops40h 40m

Boston Logan Intl

Wed 4/8

10:50 pm-12:15 pm

1 stop30h 25m

$537

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 1/16

4:50 pm-8:55 pm

1 stop35h 05m

Boston Logan Intl

Fri 1/23

9:15 pm-8:35 pm

2 stops40h 20m

$563

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 1/16

5:00 am-5:50 pm

3 stops19h 50m

Boston Logan Intl

Fri 1/23

7:50 pm-6:50 pm

2 stops16h 00m

$591

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 1/22

6:00 am-1:35 pm

1 stop14h 35m

Boston Logan Intl

Wed 2/4

9:50 pm-3:15 pm

1 stop10h 25m

$599

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 1/22

6:00 am-1:35 pm

1 stop14h 35m

Boston Logan Intl

Sat 1/31

8:40 pm-6:20 pm

1 stop14h 40m

$601

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 1/22

6:00 am-1:35 pm

1 stop14h 35m

Boston Logan Intl

Wed 2/4

2:20 pm-1:15 pm

2 stops15h 55m

$602

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 1/22

6:00 am-7:42 pm

2 stops20h 42m

Boston Logan Intl

Sat 1/31

2:27 pm-1:15 pm

2 stops15h 48m

$604

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 1/28

6:10 am-7:42 pm

2 stops20h 32m

Boston Logan Intl

Wed 4/8

9:30 am-6:40 pm

2 stops26h 10m

$605

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, January 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 $592. If you aren’t able to travel during the month of January, then book flights to Boston from Sofia during February instead. Flights to Boston in February, while not as cheap as those in January, still average around $631.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from Sofia to Boston is on a Thursday when prices can be found for as low as $644. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $752.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Sofia to Boston in the afternoon for as low as $596. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $709 per ticket.

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 $696 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 1% on your flight if you consider stops on a Sofia to Boston flight.

How have Sofia to Boston flight prices changed over time?

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	11h 35m
Direct flights	None

The fastest flight from Sofia to Boston takes 11h 35m

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

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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 11h 35m.
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 8 operators available for flights from Sofia Airport to Boston Logan Intl Airport as of December 2025.
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 (37% of total bookings). The next most popular airlines are Turkish Airlines (15%), United Airlines (14%), and KLM (13%).

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 $533	Free Cancellation	Rating 7.3 4,071 reviews	Search Turkish Airlines flights
Air France	PriceFrom $538	Free Cancellation	Rating 7.4 1,500 reviews	Search Air France flights
KLM	PriceFrom $556	Free Cancellation	Rating 7.7 1,426 reviews	Search KLM flights
United Airlines	PriceFrom $583	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights
Lufthansa	PriceFrom $584	Free Cancellation	Rating 6.8 7,603 reviews	Search Lufthansa flights
Austrian Airlines	PriceFrom $590	Free Cancellation	Rating 7.6 875 reviews	Search Austrian Airlines flights
SWISS	PriceFrom $594	Free Cancellation	Rating 7.5 1,798 reviews	Search SWISS flights
ITA Airways	PriceFrom $819	Free Cancellation	Rating 6.7 1,094 reviews	Search ITA Airways flights

Hampton Beach

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Old Orchard Beach

Hampton

York Beach

Plymouth

Kennebunkport

South Yarmouth

Cambridge

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Gloucester

Nashua

Falmouth

Laconia

Brockton

Concord

Everett

Sturbridge

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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.