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$399+ Cheap flights from Sofia (SOF) to Massachusetts

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — BOS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Sofia to Massachusetts

Cheapest flights from Sofia to Massachusetts
Explore the most affordable flight options available from Sofia to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This Justfly.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:35 am
SOF
-
BOS
1 stop17h 20m
Turkish Airlines
Wed 5/69:50 pm
BOS
-
SOF
1 stop15h 25m
Turkish Airlines
Deal found 2/3$620
This KLM deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:00 am
SOF
-
BOS
1 stop13h 25m
Multiple Airlines
Mon 3/26:30 pm
BOS
-
SOF
1 stop12h 35m
Multiple Airlines
Deal found 2/4$628
This KLM deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
SOF
-
BOS
1 stop13h 13m
KLM
Sun 5/174:35 pm
BOS
-
SOF
1 stop14h 25m
KLM
Deal found 2/4$631
This KLM deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/167:00 am
SOF
-
BOS
1 stop13h 25m
KLM
Mon 2/237:10 pm
BOS
-
SOF
1 stop11h 55m
KLM
Deal found 2/4$633

Find flight deals from Sofia to Massachusetts

Keep the following information in mind while searching for Sofia to Massachusetts flight deals. Data was last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$620
(Justfly.com)

One-way from

$359
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$618
Provider with most accurate pricing for Sofia-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Boston Logan Intl flights.
Search Deals
From Sofia to Massachusetts
Search Deals
One-way flight from Sofia to Massachusetts
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia to Massachusetts that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Sofia to Massachusetts that are best for you.

Fly from

Sofia

Fly to

Massachusetts

Route

Depart

Return

Price

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

$628

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

$628

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 4/30

7:00 am-1:13 pm

1 stop13h 13m

Boston Logan Intl

Sun 5/17

4:35 pm-2:00 pm

1 stop14h 25m

$631

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 2/16

7:00 am-1:25 pm

1 stop13h 25m

Boston Logan Intl

Mon 2/23

1:04 pm-2:05 pm

2 stops18h 01m

$638

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 5/29

2:05 pm-7:55 pm

1 stop12h 50m

Boston Logan Intl

Thu 9/3

9:50 pm-8:15 pm

1 stop15h 25m

$680

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 5/29

3:50 pm-7:55 pm

1 stop35h 05m

Boston Logan Intl

Sun 8/30

9:50 pm-8:15 pm

1 stop15h 25m

$680

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 5/14

7:00 am-4:33 pm

1 stop16h 33m

Boston Logan Intl

Mon 6/1

9:45 pm-2:00 pm

1 stop33h 15m

$681

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 5/8

6:50 pm-9:05 pm

1 stop33h 15m

$399

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 4/27

8:10 pm-1:25 pm

1 stop24h 15m

$424

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 2/13

4:45 pm-8:55 pm

1 stop35h 10m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Best time to book a flight from Sofia to Massachusetts

Have a flexible travel schedule? Discover the best time to fly to Massachusetts from Sofia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sofia to Massachusetts

What is the cheapest month to book a flight from Sofia to Massachusetts?

Currently, March is the cheapest month in which you can book a flight from Sofia to Massachusetts (average of $517). Flying from Sofia to Massachusetts in December is currently the most expensive (average of $656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Massachusetts

Get insights into the airlines that provide service to Massachusetts. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Massachusetts. Reviews last updated February 5, 2026.
Read through reviews of airlines operating flights from Sofia to Massachusetts, such as KLM, Air France, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,448 reviews
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Air France
7.4
Good
1,532 reviews
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,236 reviews
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.3
Good
4,210 reviews
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,761 reviews
KLM
7.7
Good
1,448 reviews

Crew

8.4

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Massachusetts. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sofia to Massachusetts?

    If you book a flight to Massachusetts from Sofia, you will be flying from Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia.

  • How long is the flight from Sofia to Massachusetts?

    Airlines like KLM fly from Sofia to Massachusetts in about 16h 33m. The time it takes to get you to your destination can typically vary by up to . There are 4521 mi between Sofia and Massachusetts.

  • What are the cheapest airlines to fly from Sofia to Massachusetts one-way?

    $548 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on Lufthansa and Turkish Airlines, with prices starting from $578 and $612, respectively.

  • Can I find deals for flights from Sofia to Massachusetts that include hotel bookings?

    Yes. In addition to deals on Sofia to Massachusetts flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Massachusetts?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Massachusetts.

  • Can I find deals for business class flights from Sofia to Massachusetts?

    Yes. Cheapflights offers flight deals from Sofia to Massachusetts by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sofia to Massachusetts?

    Currently, March is the cheapest month in which you can book a flight from Sofia to Massachusetts (average of $517). Flying from Sofia to Massachusetts in December is currently the most expensive (average of $656). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Sofia to Massachusetts

Discover the top 7 airlines that operate flights from Sofia to Massachusetts. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$520Average$705FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$561Average$768FlexibilityNo cancel feeOn-time77%
KLMCheapest$562Average$673FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$586Average$753FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$586Average$731FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$588Average$678FlexibilityNo cancel feeOn-time78%
ITA AirwaysCheapest$819Average$878FlexibilityNo cancel feeOn-time81%

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