What airlines fly to Sofia?

Lufthansa, KLM and Turkish Airlines are the top three most popular airlines that fly to Sofia from Massachusetts 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 Sofia. Keep in mind that there are 9 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Sofia?

Flight times vary depending on what airport in Massachusetts you fly out of and what airport in Sofia you fly into. For example, flying from Boston to Sofia takes 12h 10m on average. On the other hand, flying from Worcester to Sofia takes 37h 42m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Massachusetts to Sofia Airport?

Prices for flights from Massachusetts to Sofia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Massachusetts to Sofia Airport?

The number of operators available for flights from Massachusetts to Sofia Airport is 9 as of August 2026.

How old do you have to be to fly from Massachusetts to Sofia Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Massachusetts to Sofia Airport.

What documentation or ID do you need to fly to Sofia Airport?

The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$308 Cheap Flights from Massachusetts to Sofia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Massachusetts to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 pm - 10:30 pmBOS Boston Logan Intl-SOF Sofia

23h 55m3 stops Montreal Pierre Elliott Trudeau Intl Dublin Bristol

6:45 pm - 8:20 pmSOF Sofia-BOS Boston Logan Intl

32h 35m2 stops Barcelona-El Prat Lisbon Humberto Delgado

$826Multiple Airlines

Fri, Sep 11 - Thu, Oct 1

8:50 pm - 3:00 amBOS Boston Logan Intl-SOF Sofia

23h 10m3 stops Reykjavik Keflavik Intl Munich Franz Josef Strauss Belgrade Nikola Tesla

4:50 pm - 9:45 pmSOF Sofia-BOS Boston Logan Intl

34h 55m3 stops Barcelona-El Prat Lisbon Humberto Delgado Porto

$828Multiple Airlines

Sat, Oct 17 - Sat, Oct 31

2:40 pm - 6:00 pmBOS Boston Logan Intl-SOF Sofia

20h 20m2 stops Washington, D.C. Dulles Intl Vienna Intl

7:55 am - 1:30 pmSOF Sofia-BOS Boston Logan Intl

12h 35m1 stop Vienna Intl

$830Austrian Airlines

Tue, Nov 17 - Tue, Dec 1

9:50 pm - 11:45 amBOS Boston Logan Intl-SOF Sofia

30h 55m1 stop Istanbul

9:10 pm - 7:05 pmSOF Sofia-BOS Boston Logan Intl

28h 55m1 stop Istanbul

$831Turkish Airlines

Wed, Oct 14 - Sat, Oct 24

8:00 pm - 8:50 amBOS Boston Logan Intl-SOF Sofia

29h 50m1 stop Istanbul

4:00 pm - 6:05 pmSOF Sofia-BOS Boston Logan Intl

33h 05m1 stop Istanbul

$831Turkish Airlines

Wed, Nov 25 - Sun, Nov 29

6:33 pm - 6:20 pmBOS Boston Logan Intl-SOF Sofia

16h 47m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:55 am - 5:25 pmSOF Sofia-BOS Boston Logan Intl

16h 30m2 stops Vienna Intl Newark

$837United Airlines

Wed, Jan 27 - Thu, Feb 4

6:33 pm - 6:20 pmBOS Boston Logan Intl-SOF Sofia

16h 47m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:55 am - 6:13 pmSOF Sofia-BOS Boston Logan Intl

17h 18m2 stops Vienna Intl Newark

$837United Airlines

Wed, Jan 27 - Fri, Feb 5

7:41 pm - 10:55 pmBOS Boston Logan Intl-SOF Sofia

20h 14m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

2:00 pm - 6:35 pmSOF Sofia-BOS Boston Logan Intl

11h 35m1 stop Munich Franz Josef Strauss

$844Lufthansa

Tue, Nov 10 - Sun, Nov 22

8:40 pm - 10:55 pmBOS Boston Logan Intl-SOF Sofia

19h 15m1 stop Munich Franz Josef Strauss

7:05 pm - 6:35 pmSOF Sofia-BOS Boston Logan Intl

30h 30m1 stop Munich Franz Josef Strauss

$845Lufthansa

Tue, Jan 26 - Mon, Feb 1

1:30 pm - 11:55 pmBOS Boston Logan Intl-SOF Sofia

27h 25m2 stops Newark Vienna Intl

6:45 pm - 6:49 pmSOF Sofia-BOS Boston Logan Intl

31h 04m2 stops Vienna Intl Washington, D.C. Dulles Intl

$850Austrian Airlines

Sun, Jan 24 - Mon, Feb 1

Cheap last minute flights

Enter your travel dates to find the best prices.

8:05 pm - 6:40 pmBOS Boston Logan Intl-SOF Sofia

15h 35m1 stop Munich Franz Josef Strauss

7:25 pm - 5:40 pmSOF Sofia-BOS Boston Logan Intl

29h 15m1 stop Munich Franz Josef Strauss

$869Lufthansa

Mon, Aug 10 - Tue, Aug 18

8:05 pm - 6:40 pmBOS Boston Logan Intl-SOF Sofia

15h 35m1 stop Munich Franz Josef Strauss

7:25 pm - 5:40 pmSOF Sofia-BOS Boston Logan Intl

29h 15m1 stop Munich Franz Josef Strauss

$869Lufthansa

Sun, Aug 9 - Tue, Aug 18

8:05 pm - 6:40 pmBOS Boston Logan Intl-SOF Sofia

15h 35m1 stop Munich Franz Josef Strauss

6:10 am - 5:40 pmSOF Sofia-BOS Boston Logan Intl

18h 30m1 stop Munich Franz Josef Strauss

$894United Airlines

Sun, Aug 9 - Thu, Aug 13

8:05 pm - 11:15 pmBOS Boston Logan Intl-SOF Sofia

20h 10m1 stop Munich Franz Josef Strauss

6:10 am - 5:40 pmSOF Sofia-BOS Boston Logan Intl

18h 30m1 stop Munich Franz Josef Strauss

$894United Airlines

Mon, Aug 10 - Thu, Aug 13

12:30 pm - 6:40 pmBOS Boston Logan Intl-SOF Sofia

23h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

2:20 pm - 5:42 pmSOF Sofia-BOS Boston Logan Intl

58h 22m2 stops Frankfurt am Main Halifax Intl

$930Air Canada

Sun, Aug 9 - Mon, Aug 17

4:55 pm - 12:10 pmBOS Boston Logan Intl-SOF Sofia

36h 15m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

2:20 pm - 5:42 pmSOF Sofia-BOS Boston Logan Intl

58h 22m2 stops Frankfurt am Main Halifax Intl

$930Air Canada

Mon, Aug 10 - Mon, Aug 17

9:40 pm - 12:15 pmBOS Boston Logan Intl-SOF Sofia

31h 35m1 stop Zurich

12:55 pm - 7:55 pmSOF Sofia-BOS Boston Logan Intl

38h 00m2 stops Munich Franz Josef Strauss Zurich

$1,032SWISS

Sun, Aug 9 - Wed, Aug 12

5:10 pm - 12:10 pmBOS Boston Logan Intl-SOF Sofia

12h 00m2 stops Zurich Munich Franz Josef Strauss

12:55 pm - 3:10 pmSOF Sofia-BOS Boston Logan Intl

33h 15m2 stops Munich Franz Josef Strauss Zurich

$1,056SWISS

Mon, Aug 10 - Wed, Aug 12

5:05 pm - 12:10 pmBOS Boston Logan Intl-SOF Sofia

12h 05m1 stop Rome Fiumicino

7:00 am - 6:22 pmSOF Sofia-BOS Boston Logan Intl

18h 22m2 stops Rome Fiumicino Toronto Pearson Intl

$1,085ITA Airways

Fri, Aug 7 - Sat, Aug 15

5:05 pm - 12:10 pmBOS Boston Logan Intl-SOF Sofia

12h 05m1 stop Rome Fiumicino

7:00 am - 6:22 pmSOF Sofia-BOS Boston Logan Intl

18h 22m2 stops Rome Fiumicino Toronto Pearson Intl

$1,213ITA Airways

Fri, Aug 7 - Sat, Aug 15

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Austrian Airlines flights from Massachusetts to Sofia

Our best Austrian Airlines deals on Massachusetts to Sofia flight tickets

Austrian Airlines

Nov 17

BOS2:40 pmBoston Logan Intl

20h 20m

2 stops

SOF6:00 pmSofia

Dec 1

SOF7:55 amSofia

12h 35m

1 stop

BOS1:30 pmBoston Logan Intl

$830

Austrian Airlines

Aug 25

BOS5:10 pmBoston Logan Intl

18h 00m

1 stop

SOF6:10 pmSofia

Sep 8

SOF8:00 amSofia

12h 50m

1 stop

BOS1:50 pmBoston Logan Intl

$864

Austrian Airlines

Jan 1

BOS10:31 amBoston Logan Intl

23h 59m

2 stops

SOF5:30 pmSofia

Jan 15

SOF7:55 amSofia

16h 30m

2 stops

BOS5:25 pmBoston Logan Intl

$866

Lufthansa flights from Massachusetts to Sofia

Our best Lufthansa deals on Massachusetts to Sofia flight tickets

Lufthansa

Nov 17

BOS7:41 pmBoston Logan Intl

20h 14m

2 stops

SOF10:55 pmSofia

Dec 1

SOF6:00 amSofia

24h 54m

2 stops

BOS11:54 pmBoston Logan Intl

$846

Lufthansa

Nov 17

BOS7:41 pmBoston Logan Intl

20h 14m

2 stops

SOF10:55 pmSofia

Dec 1

SOF6:00 amSofia

24h 54m

2 stops

BOS11:54 pmBoston Logan Intl

$847

Lufthansa

Jan 1

BOS8:40 pmBoston Logan Intl

14h 40m

1 stop

SOF6:20 pmSofia

Jan 15

SOF2:00 pmSofia

11h 35m

1 stop

BOS6:35 pmBoston Logan Intl

$848

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Fri 9/11

3:35 pm-10:30 pm

3 stops23h 55m

Sofia

Thu 10/1

6:45 pm-8:20 pm

2 stops32h 35m

$826

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Sat 10/17

8:50 pm-3:00 am

3 stops23h 10m

Sofia

Sat 10/31

4:50 pm-9:45 pm

3 stops34h 55m

$828

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Tue 11/17

2:40 pm-6:00 pm

2 stops20h 20m

Sofia

Tue 12/1

7:55 am-1:30 pm

1 stop12h 35m

$830

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Wed 10/14

9:50 pm-11:45 am

1 stop30h 55m

Sofia

Sat 10/24

9:10 pm-7:05 pm

1 stop28h 55m

$831

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Wed 11/25

8:00 pm-8:50 am

1 stop29h 50m

Sofia

Sun 11/29

4:00 pm-6:05 pm

1 stop33h 05m

$831

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Wed 1/27

6:33 pm-6:20 pm

2 stops16h 47m

Sofia

Thu 2/4

7:55 am-5:25 pm

2 stops16h 30m

$837

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Wed 1/27

6:33 pm-6:20 pm

2 stops16h 47m

Sofia

Fri 2/5

7:55 am-6:13 pm

2 stops17h 18m

$837

Quickest round-trip

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Tue 11/10

7:41 pm-10:55 pm

2 stops20h 14m

Sofia

Sun 11/22

2:00 pm-6:35 pm

1 stop11h 35m

$844

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Tue 1/26

8:40 pm-10:55 pm

1 stop19h 15m

Sofia

Mon 2/1

7:05 pm-6:35 pm

1 stop30h 30m

$845

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Sun 1/24

1:30 pm-11:55 pm

2 stops27h 25m

Sofia

Mon 2/1

6:45 pm-6:49 pm

2 stops31h 04m

$850

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 Massachusetts to Sofia

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

Other information

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from Massachusetts is in February. Flight prices, which tend to average around $460, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Sofia from Massachusetts during November instead. Flights to Sofia in November, while not as cheap as those in February, still average around $478.

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

You are more likely to see cheaper flights to Sofia from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $654 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Massachusetts for as low as $474 on momondo.

Can stopping save me money on Massachusetts to Sofia flights?

You could potentially save up to 52% on your flight if you consider stops on a Massachusetts to Sofia flight.

Cheap Massachusetts to Sofia flight deals and tips

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

Fastest flight time	12h 10m
Direct flights	None

The fastest flight from Massachusetts to Sofia takes 12h 10m

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

Search flight deals

Frequently asked questions about flying from Massachusetts to Sofia

When did momondo last update prices for flights from Massachusetts to Sofia Airport?
Prices for flights from Massachusetts to Sofia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Massachusetts to Sofia Airport?
The number of operators available for flights from Massachusetts to Sofia Airport is 9 as of August 2026.
How old do you have to be to fly from Massachusetts to Sofia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Massachusetts to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Massachusetts to Sofia

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,554 reviews	Search KLM flights
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 951 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 10,069 reviews	Search United Airlines flights
Lufthansa	PriceFrom $395	Free Cancellation	Rating 6.8 8,176 reviews	Search Lufthansa flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.5 1,637 reviews	Search Air France flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 2,025 reviews	Search SWISS flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,147 reviews	Search British Airways flights
Turkish Airlines	PriceFrom $524	Free Cancellation	Rating 7.4 4,467 reviews	Search Turkish Airlines flights
ITA Airways	PriceFrom $694	Free Cancellation	Rating 6.7 1,308 reviews	Search ITA Airways flights

Bansko

Borovets

Velingrad

Sandanski

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

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

momondo does allow users to show only those flights to Sofia from Massachusetts which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Sofia from Massachusetts. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Sofia from Massachusetts are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Massachusetts to Sofia from $308

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Sofia departing on 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Austrian Airlines flights from Massachusetts to Sofia

Our best Austrian Airlines deals on Massachusetts to Sofia flight tickets

Lufthansa flights from Massachusetts to Sofia

Our best Lufthansa deals on Massachusetts to Sofia flight tickets

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How to get the cheapest flight ticket from Massachusetts to Sofia

What is the cheapest month to fly to Sofia?

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

Can stopping save me money on Massachusetts to Sofia flights?

What airlines fly to Sofia?

How long does it take to fly to Sofia?

Cheap Massachusetts to Sofia flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Massachusetts to Sofia

Best airlines flying from Massachusetts to Sofia

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

Traveling to a place near Sofia?

Why use momondo?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.

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