What is the cheapest airline that flies from Massachusetts to Sofia?

Lufthansa, LOT, and ITA Airways are the most popular carriers operating from Massachusetts to Sofia

What airlines fly to Sofia?

Lufthansa, Turkish Airlines and United 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 59% 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 10h 05m on average. On the other hand, flying from Worcester to Sofia takes 17h 55m 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 October 2025.

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.

$283 Cheap Flights from Massachusetts to Sofia in 2025/26

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Find the cheapest flights from Massachusetts to Sofia

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 11:50 amBOS-SOF

16h 20m2 stops

7:55 am - 2:05 pmSOF-BOS

13h 10m1 stop

$326Austrian Airlines

Find Deal

Tue, Oct 28 - Tue, Nov 11

6:25 pm - 11:50 amBOS-SOF

10h 25m1 stop

6:45 pm - 5:14 pmSOF-BOS

29h 29m2 stops

$345Austrian Airlines

Find Deal

Sun, Jan 11 - Mon, Jan 19

9:50 pm - 3:15 pmBOS-SOF

10h 25m1 stop

6:45 pm - 2:05 pmSOF-BOS

26h 20m1 stop

$359Multiple Airlines

Find Deal

Wed, Nov 12 - Mon, Nov 17

5:05 pm - 2:45 pmBOS-SOF

14h 40m1 stop

6:45 pm - 2:05 pmSOF-BOS

26h 20m1 stop

$360Multiple Airlines

Find Deal

Sun, Oct 19 - Mon, Nov 3

5:20 pm - 1:50 pmBOS-SOF

14h 30m1 stop

2:00 pm - 6:35 pmSOF-BOS

11h 35m1 stop

$373Lufthansa

Find Deal

Wed, Oct 29 - Wed, Nov 12

8:40 pm - 10:45 pmBOS-SOF

19h 05m1 stop

2:00 pm - 6:35 pmSOF-BOS

11h 35m1 stop

$390Lufthansa

Find Deal

Tue, Jan 6 - Tue, Jan 20

6:15 am - 6:20 pmBOS-SOF

30h 05m2 stops

6:05 am - 9:27 pmSOF-BOS

22h 22m2 stops

$399Air Canada

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Wed, Oct 29 - Wed, Nov 12

10:15 am - 1:10 pmBOS-SOF

19h 55m2 stops

6:00 am - 7:42 pmSOF-BOS

20h 42m2 stops

$403Air Canada

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Sun, Jan 11 - Tue, Jan 20

9:50 pm - 6:20 pmBOS-SOF

13h 30m2 stops

1:45 pm - 8:20 pmSOF-BOS

37h 35m2 stops

$412SWISS

Find Deal

Wed, Nov 12 - Mon, Nov 17

10:10 pm - 1:15 pmBOS-SOF

32h 05m2 stops

1:55 pm - 8:20 pmSOF-BOS

37h 25m2 stops

$413SWISS

Find Deal

Sun, Jan 11 - Mon, Jan 19

Austrian Airlines flights from Massachusetts to Sofia

Our best Austrian Airlines deals on Massachusetts to Sofia flight tickets

Austrian Airlines

Oct 28

BOS1:30 pmBoston Logan Intl

16h 20m

2 stops

SOF11:50 amSofia

Nov 11

SOF7:55 amSofia

13h 10m

1 stop

BOS2:05 pmBoston Logan Intl

$326

Find similar

Austrian Airlines

Jan 11

BOS6:25 pmBoston Logan Intl

10h 25m

1 stop

SOF11:50 amSofia

Jan 19

SOF6:45 pmSofia

29h 29m

2 stops

BOS5:14 pmBoston Logan Intl

$345

Find similar

Austrian Airlines

Oct 28

BOS7:25 pmBoston Logan Intl

16h 35m

1 stop

SOF6:00 pmSofia

Nov 11

SOF7:55 amSofia

13h 10m

1 stop

BOS2:05 pmBoston Logan Intl

$355

Find similar

Air Canada flights from Massachusetts to Sofia

Our best Air Canada deals on Massachusetts to Sofia flight tickets

Air Canada

Oct 29

BOS6:15 amBoston Logan Intl

30h 05m

2 stops

SOF6:20 pmSofia

Nov 12

SOF6:05 amSofia

22h 22m

2 stops

BOS9:27 pmBoston Logan Intl

$399

Find similar

Air Canada

Jan 11

BOS10:15 amBoston Logan Intl

19h 55m

2 stops

SOF1:10 pmSofia

Jan 20

SOF6:00 amSofia

20h 42m

2 stops

BOS7:42 pmBoston Logan Intl

$403

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 10/28

1:30 pm-11:50 am

2 stops16h 20m

Sofia

Tue 11/11

7:55 am-2:05 pm

1 stop13h 10m

$326

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 1/11

6:25 pm-11:50 am

1 stop10h 25m

Sofia

Mon 1/19

6:45 pm-5:14 pm

2 stops29h 29m

$345

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 11/12

9:50 pm-3:15 pm

1 stop10h 25m

Sofia

Mon 11/17

6:45 pm-2:05 pm

1 stop26h 20m

$359

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 10/19

5:05 pm-2:45 pm

1 stop14h 40m

Sofia

Mon 11/3

6:45 pm-2:05 pm

1 stop26h 20m

$360

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 10/29

5:20 pm-1:50 pm

1 stop14h 30m

Sofia

Wed 11/12

2:00 pm-6:35 pm

1 stop11h 35m

$373

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 1/6

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Tue 1/20

2:00 pm-6:35 pm

1 stop11h 35m

$390

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 10/29

6:15 am-6:20 pm

2 stops30h 05m

Sofia

Wed 11/12

6:05 am-9:27 pm

2 stops22h 22m

$399

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 1/11

10:15 am-1:10 pm

2 stops19h 55m

Sofia

Tue 1/20

6:00 am-7:42 pm

2 stops20h 42m

$403

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 11/12

9:50 pm-6:20 pm

2 stops13h 30m

Sofia

Mon 11/17

1:45 pm-8:20 pm

2 stops37h 35m

$412

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 1/11

10:10 pm-1:15 pm

2 stops32h 05m

Sofia

Mon 1/19

1:55 pm-8:20 pm

2 stops37h 25m

$413

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 October. Flight prices, which tend to average around $534, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Sofia from Massachusetts during September instead. Flights to Sofia in September, while not as cheap as those in October, still average around $601.

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

According to our data, Tuesday is the cheapest day to fly to Sofia from Massachusetts. The lowest ticket price found for a Tuesday departure recently was $843. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Massachusetts to Sofia on a Friday will generally be more expensive and average around $997. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

In the evening is the cheapest time of day to fly from Massachusetts to Sofia when you can find flight prices for as low as $816. Flying to Sofia in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,022 per ticket.

How far in advance should I book a flight 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 $789 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 $665 on momondo.

Cheap Massachusetts to Sofia flight deals and tips

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

Direct flights	None

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

Search flight deals

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 October 2025.
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
Air France	PriceFrom $416	Free Cancellation	Rating 7.4 1,467 reviews	Search Air France flights
KLM	PriceFrom $430	Free Cancellation	Rating 7.7 1,396 reviews	Search KLM flights
SWISS	PriceFrom $436	Free Cancellation	Rating 7.5 1,759 reviews	Search SWISS flights
Austrian Airlines	PriceFrom $495	Free Cancellation	Rating 7.6 852 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $503	Free Cancellation	Rating 7.4 8,958 reviews	Search United Airlines flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,061 reviews	Search ITA Airways flights
Lufthansa	PriceFrom $509	Free Cancellation	Rating 6.8 7,457 reviews	Search Lufthansa flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,438 reviews	Search British Airways flights
Turkish Airlines	PriceFrom $512	Free Cancellation	Rating 7.3 3,993 reviews	Search Turkish Airlines flights

Bansko

Borovets

Velingrad

Sandanski

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Massachusetts to Sofia. momondo saves you time and could save you money on your trip.

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.