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Cheap flights from Sofia to Boston from $319

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Boston departing on 5/26. 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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0 bags

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Find the cheapest flights from Sofia to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:50 pm - 9:35 pm
BOS
-
SOF
39h 45m
2 stops
$587Multiple Airlines
Sun, Apr 12 - Sat, Apr 25
Multiple Airlines Logo
1:40 pm - 9:05 pm
SOF
-
BOS
14h 25m
1 stop
Multiple Airlines Logo
10:50 pm - 2:15 pm
BOS
-
SOF
32h 25m
1 stop
$604Multiple Airlines
Sat, May 9 - Sat, May 16
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:50 pm - 2:15 pm
BOS
-
SOF
32h 25m
1 stop
$606Multiple Airlines
Sun, Apr 12 - Sat, Apr 25
Multiple Airlines Logo
6:30 am - 9:05 pm
SOF
-
BOS
21h 35m
2 stops
Multiple Airlines Logo
10:50 pm - 9:15 pm
BOS
-
SOF
15h 25m
1 stop
$608Multiple Airlines
Mon, Apr 20 - Tue, Apr 28
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:50 pm - 1:35 am
BOS
-
SOF
19h 45m
1 stop
$611Multiple Airlines
Sun, Apr 19 - Tue, Apr 28
Multiple Airlines Logo
6:30 am - 9:05 pm
SOF
-
BOS
21h 35m
2 stops
Multiple Airlines Logo
10:50 pm - 10:40 pm
BOS
-
SOF
16h 50m
1 stop
$614Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:50 pm - 1:35 am
BOS
-
SOF
19h 45m
1 stop
$618Multiple Airlines
Sun, Apr 19 - Mon, Apr 27
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
10:50 pm - 1:35 am
BOS
-
SOF
19h 45m
1 stop
$628Multiple Airlines
Sun, Apr 19 - Fri, May 1
Multiple Airlines Logo
10:10 am - 9:05 pm
SOF
-
BOS
17h 55m
1 stop
Multiple Airlines Logo
11:00 pm - 10:40 pm
BOS
-
SOF
16h 40m
1 stop
$633Multiple Airlines
Thu, Jun 18 - Mon, Jul 13
Multiple Airlines Logo
11:25 pm - 9:05 pm
SOF
-
BOS
28h 40m
1 stop
Multiple Airlines Logo
10:50 pm - 12:15 pm
BOS
-
SOF
30h 25m
1 stop
$635Multiple Airlines
Tue, May 19 - Wed, Jun 3

United Airlines flights from Sofia to Boston

Our best United Airlines deals on Sofia to Boston flight tickets
United Airlines
Jun 12
SOF6:20 amSofia
20h 50m
1 stop
BOS8:10 pmBoston Logan Intl
Jun 29
BOS7:27 pmBoston Logan Intl
20h 48m
2 stops
SOF11:15 pmSofia
$765
United Airlines
Jun 12
SOF6:20 amSofia
34h 25m
2 stops
BOS9:45 amBoston Logan Intl
Jun 29
BOS9:30 amBoston Logan Intl
30h 30m
2 stops
SOF11:00 pmSofia
$767
United Airlines
Jun 4
SOF6:30 amSofia
15h 17m
2 stops
BOS2:47 pmBoston Logan Intl
Sep 18
BOS8:05 pmBoston Logan Intl
15h 35m
1 stop
SOF6:40 pmSofia
$768

Lufthansa flights from Sofia to Boston

Our best Lufthansa deals on Sofia to Boston flight tickets
Lufthansa
Apr 23
SOF6:30 amSofia
16h 10m
1 stop
BOS3:40 pmBoston Logan Intl
Apr 30
BOS8:05 pmBoston Logan Intl
15h 35m
1 stop
SOF6:40 pmSofia
$761
Lufthansa
Jun 13
SOF11:50 amSofia
15h 20m
1 stop
BOS8:10 pmBoston Logan Intl
Jun 29
BOS8:05 pmBoston Logan Intl
20h 10m
1 stop
SOF11:15 pmSofia
$774

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Boston 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, momondo users made 832,500 searches. Data last updated March 29, 2026.
Use the filters below to find and compare flights from Sofia to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/12

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Sat 4/25

10:50 pm-9:35 pm

2 stops39h 45m

$587

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 5/9

1:40 pm-9:05 pm

1 stop14h 25m

Boston Logan Intl

Sat 5/16

10:50 pm-2:15 pm

1 stop32h 25m

$604

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/12

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Sat 4/25

10:50 pm-2:15 pm

1 stop32h 25m

$606

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 4/20

6:30 am-9:05 pm

2 stops21h 35m

Boston Logan Intl

Tue 4/28

10:50 pm-9:15 pm

1 stop15h 25m

$608

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/19

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Tue 4/28

10:50 pm-1:35 am

1 stop19h 45m

$611

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 4/20

6:30 am-9:05 pm

2 stops21h 35m

Boston Logan Intl

Mon 4/27

10:50 pm-10:40 pm

1 stop16h 50m

$614

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/19

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Mon 4/27

10:50 pm-1:35 am

1 stop19h 45m

$618

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/19

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Fri 5/1

10:50 pm-1:35 am

1 stop19h 45m

$628
Quickest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 6/18

10:10 am-9:05 pm

1 stop17h 55m

Boston Logan Intl

Mon 7/13

11:00 pm-10:40 pm

1 stop16h 40m

$633

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 5/19

11:25 pm-9:05 pm

1 stop28h 40m

Boston Logan Intl

Wed 6/3

10:50 pm-12:15 pm

1 stop30h 25m

$635

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

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

What is the typical price of a round-trip flight between Sofia and Boston?

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 $652. If you aren’t able to travel during the month of January, then book flights to Boston from Sofia during November instead. Flights to Boston in November, while not as cheap as those in January, still average around $675.

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 $753 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 $623 on momondo.

Can stopping save me money on Sofia to Boston flights?

You could potentially save up to 6% 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

13h 05m

Direct flights

None
The fastest flight from Sofia to Boston takes 13h 05m
There are no direct flights from Sofia to Boston. There are no popular flight routes from Sofia to Boston.
Search flight deals

  • 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 13h 05m.

  • 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?

  • 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?

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
Air FrancePriceFrom $561Free CancellationRating
7.4
1,556 reviews
Search Air France flights
KLMPriceFrom $562Free CancellationRating
7.8
1,479 reviews
Search KLM flights
Austrian AirlinesPriceFrom $590Free CancellationRating
7.6
903 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $630Free CancellationRating
7.4
9,510 reviews
Search United Airlines flights
LufthansaPriceFrom $647Free CancellationRating
6.8
7,872 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $651Free CancellationRating
7.4
4,287 reviews
Search Turkish Airlines flights
ITA AirwaysPriceFrom $819Free CancellationRating
6.7
1,174 reviews
Search ITA Airways flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Kennebunkport
Plymouth
Cambridge
South Yarmouth
Narragansett
Gloucester
Falmouth
Brockton
Warwick
Chatham
Laconia
Nashua
Sturbridge
Everett

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.

An easier way to manage your Boston trip

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