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

SWISS and Lufthansa are the most popular carriers operating from Massachusetts to Sofia

What airlines fly to Sofia?

Lufthansa, United Airlines and KLM 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 60% 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 11h 55m on average. On the other hand, flying from Worcester to Sofia takes 41h 16m 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 March 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.

$226 Cheap Flights from Massachusetts to Sofia in 2026

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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.

6:15 am - 12:10 pm

BOS

SOF

22h 55m

2 stops

6:10 am - 10:39 pm

SOF

BOS

23h 29m

2 stops

$420Multiple Airlines

Wed, Apr 22 - Wed, May 6

7:30 pm - 2:05 pm

BOS

SOF

12h 35m

1 stop

7:00 am - 1:33 pm

SOF

BOS

13h 33m

1 stop

$438Air France

Mon, Mar 23 - Tue, Apr 14

1:00 pm - 12:10 pm

BOS

SOF

16h 10m

2 stops

3:40 pm - 3:10 pm

SOF

BOS

30h 30m

1 stop

$441Multiple Airlines

Mon, Apr 20 - Mon, May 4

6:15 am - 12:10 pm

BOS

SOF

22h 55m

2 stops

11:05 am - 7:55 pm

SOF

BOS

15h 50m

1 stop

$442Multiple Airlines

Wed, Apr 22 - Wed, May 6

3:35 pm - 1:25 pm

BOS

SOF

14h 50m

2 stops

12:55 pm - 10:39 pm

SOF

BOS

16h 44m

2 stops

$445Multiple Airlines

Wed, Apr 22 - Wed, May 6

7:30 pm - 2:05 pm

BOS

SOF

12h 35m

1 stop

7:00 am - 3:28 pm

SOF

BOS

15h 28m

2 stops

$448Multiple Airlines

Mon, Mar 23 - Tue, Apr 14

8:10 pm - 2:05 pm

BOS

SOF

11h 55m

1 stop

7:00 am - 1:13 pm

SOF

BOS

13h 13m

1 stop

$451KLM

Tue, Mar 24 - Thu, Apr 23

5:45 am - 1:15 pm

BOS

SOF

25h 30m

2 stops

6:10 am - 11:30 pm

SOF

BOS

24h 20m

2 stops

$452United Airlines

Mon, Mar 23 - Thu, Apr 30

5:45 am - 1:15 pm

BOS

SOF

25h 30m

2 stops

6:10 am - 9:49 am

SOF

BOS

34h 39m

2 stops

$453United Airlines

Mon, Mar 23 - Tue, Apr 28

6:00 am - 10:45 pm

BDL

SOF

34h 45m

2 stops

2:25 pm - 11:59 pm

SOF

BDL

39h 34m

2 stops

$883United Airlines

Mon, Mar 16 - Sun, Mar 22

Air France flights from Massachusetts to Sofia

Our best Air France deals on Massachusetts to Sofia flight tickets

Air France

Mar 23

BOS7:30 pmBoston Logan Intl

12h 35m

1 stop

SOF2:05 pmSofia

Apr 14

SOF7:00 amSofia

13h 33m

1 stop

BOS1:33 pmBoston Logan Intl

$438

Air France

Jul 5

BOS7:05 pmBoston Logan Intl

11h 55m

1 stop

SOF2:00 pmSofia

Aug 25

SOF7:00 amSofia

14h 55m

1 stop

BOS2:55 pmBoston Logan Intl

$463

Air France

Jul 7

BOS1:10 pmBoston Logan Intl

17h 50m

2 stops

SOF2:00 pmSofia

Aug 25

SOF7:00 amSofia

14h 55m

1 stop

BOS2:55 pmBoston Logan Intl

$467

KLM flights from Massachusetts to Sofia

Our best KLM deals on Massachusetts to Sofia flight tickets

KLM

Mar 24

BOS8:10 pmBoston Logan Intl

11h 55m

1 stop

SOF2:05 pmSofia

Apr 23

SOF7:00 amSofia

13h 13m

1 stop

BOS1:13 pmBoston Logan Intl

$451

KLM

Apr 1

BOS6:55 pmBoston Logan Intl

12h 05m

1 stop

SOF2:00 pmSofia

Apr 8

SOF7:00 amSofia

15h 09m

2 stops

BOS3:09 pmBoston Logan Intl

$460

KLM

Mar 23

BOS5:15 pmBoston Logan Intl

14h 50m

2 stops

SOF2:05 pmSofia

Apr 14

SOF7:00 amSofia

15h 28m

2 stops

BOS3:28 pmBoston Logan Intl

$465

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 4/22

6:15 am-12:10 pm

2 stops22h 55m

Sofia

Wed 5/6

6:10 am-10:39 pm

2 stops23h 29m

$420

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 3/23

7:30 pm-2:05 pm

1 stop12h 35m

Sofia

Tue 4/14

7:00 am-1:33 pm

1 stop13h 33m

$438

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 4/20

1:00 pm-12:10 pm

2 stops16h 10m

Sofia

Mon 5/4

3:40 pm-3:10 pm

1 stop30h 30m

$441

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 4/22

6:15 am-12:10 pm

2 stops22h 55m

Sofia

Wed 5/6

11:05 am-7:55 pm

1 stop15h 50m

$442

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 4/22

3:35 pm-1:25 pm

2 stops14h 50m

Sofia

Wed 5/6

12:55 pm-10:39 pm

2 stops16h 44m

$445

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 3/23

7:30 pm-2:05 pm

1 stop12h 35m

Sofia

Tue 4/14

7:00 am-3:28 pm

2 stops15h 28m

$448

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 3/24

8:10 pm-2:05 pm

1 stop11h 55m

Sofia

Thu 4/23

7:00 am-1:13 pm

1 stop13h 13m

$451

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 3/23

5:45 am-1:15 pm

2 stops25h 30m

Sofia

Thu 4/30

6:10 am-11:30 pm

2 stops24h 20m

$452

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 3/23

5:45 am-1:15 pm

2 stops25h 30m

Sofia

Tue 4/28

6:10 am-9:49 am

2 stops34h 39m

$453

HartfordSofia

BDL - SOF

BDLSOF

Hartford Bradley Intl

Mon 3/16

6:00 am-10:45 pm

2 stops34h 45m

Sofia

Sun 3/22

2:25 pm-11:59 pm

2 stops39h 34m

$883

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

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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 $461, 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 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 $627 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 $612 on momondo.

Can stopping save me money on Massachusetts to Sofia flights?

You could potentially save up to 20% 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	11h 55m
Direct flights	None

The fastest flight from Massachusetts to Sofia takes 11h 55m

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 March 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 7.7 1,461 reviews	Search KLM flights
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 900 reviews	Search Austrian Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.4 1,541 reviews	Search Air France flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.6 1,889 reviews	Search SWISS flights
United Airlines	PriceFrom $415	Free Cancellation	Rating 7.4 9,377 reviews	Search United Airlines flights
Lufthansa	PriceFrom $423	Free Cancellation	Rating 6.8 7,820 reviews	Search Lufthansa flights
British Airways	PriceFrom $478	Free Cancellation	Rating 6.7 7,773 reviews	Search British Airways flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,156 reviews	Search ITA Airways flights
Turkish Airlines	PriceFrom $524	Free Cancellation	Rating 7.3 4,240 reviews	Search Turkish Airlines flights

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Borovets

Velingrad

Sandanski

Why use momondo?

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.

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Cheap flights from Massachusetts to Sofia from $226

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 8/3. 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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Air France flights from Massachusetts to Sofia

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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 to Sofia?

Can stopping save me money on Massachusetts to Sofia flights?

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

What airlines fly to Sofia?

How long does it take to fly to Sofia?

Cheap Massachusetts to Sofia flight deals and tips

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

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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.

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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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