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Cheap flights from Sofia to Boston from $380

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 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
6:05 am - 2:55 pm
SOF
-
BOS
14h 50m
1 stop
Multiple Airlines Logo
10:20 pm - 9:20 pm
BOS
-
SOF
17h 00m
1 stop
$581Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
6:00 am - 2:55 pm
SOF
-
BOS
14h 55m
1 stop
Multiple Airlines Logo
6:10 pm - 1:45 pm
BOS
-
SOF
13h 35m
1 stop
$584Multiple Airlines
Wed, Mar 11 - Tue, Mar 17
Multiple Airlines Logo
4:00 pm - 6:50 pm
SOF
-
BOS
32h 50m
3 stops
Multiple Airlines Logo
12:35 pm - 9:40 pm
BOS
-
SOF
27h 05m
2 stops
$602Multiple Airlines
Mon, Mar 9 - Wed, Mar 18
Multiple Airlines Logo
12:00 pm - 7:55 pm
SOF
-
BOS
13h 55m
1 stop
Multiple Airlines Logo
10:20 pm - 9:20 pm
BOS
-
SOF
17h 00m
1 stop
$606Multiple Airlines
Mon, Mar 9 - Thu, Mar 19
Multiple Airlines Logo
6:05 am - 9:10 pm
SOF
-
BOS
21h 05m
2 stops
Multiple Airlines Logo
10:20 pm - 11:35 am
BOS
-
SOF
31h 15m
1 stop
$631Multiple Airlines
Tue, Mar 10 - Sat, Mar 21
Multiple Airlines Logo
6:05 am - 9:10 pm
SOF
-
BOS
21h 05m
2 stops
Multiple Airlines Logo
6:10 pm - 1:50 pm
BOS
-
SOF
13h 40m
1 stop
$642Multiple Airlines
Tue, Mar 10 - Mon, Mar 16
Multiple Airlines Logo
6:05 am - 9:10 pm
SOF
-
BOS
21h 05m
2 stops
Multiple Airlines Logo
10:20 pm - 9:20 pm
BOS
-
SOF
17h 00m
1 stop
$647Multiple Airlines
Tue, Mar 10 - Thu, Mar 19
Multiple Airlines Logo
6:05 am - 9:10 pm
SOF
-
BOS
21h 05m
2 stops
Multiple Airlines Logo
6:10 pm - 1:45 pm
BOS
-
SOF
13h 35m
1 stop
$650Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
5:45 am - 11:48 am
SOF
-
BOS
36h 03m
2 stops
Multiple Airlines Logo
10:20 pm - 11:35 am
BOS
-
SOF
31h 15m
1 stop
$654Multiple Airlines
Mon, Mar 9 - Sat, Mar 21
Multiple Airlines Logo
5:45 am - 9:55 pm
SOF
-
BOS
22h 10m
2 stops
Multiple Airlines Logo
10:50 pm - 1:30 am
BOS
-
SOF
19h 40m
1 stop
$665Multiple Airlines
Mon, Mar 16 - Mon, Mar 30

United Airlines flights from Sofia to Boston

Our best United Airlines deals on Sofia to Boston flight tickets
United Airlines
Jun 8
SOF6:20 amSofia
16h 20m
1 stop
BOS3:40 pmBoston Logan Intl
Sep 28
BOS8:05 pmBoston Logan Intl
20h 05m
1 stop
SOF11:10 pmSofia
$695
United Airlines
Jun 16
SOF6:10 amSofia
16h 30m
1 stop
BOS3:40 pmBoston Logan Intl
Jul 11
BOS10:00 pmBoston Logan Intl
17h 50m
1 stop
SOF10:50 pmSofia
$696
United Airlines
Jun 5
SOF6:20 amSofia
16h 20m
1 stop
BOS3:40 pmBoston Logan Intl
Sep 26
BOS5:45 pmBoston Logan Intl
12h 15m
1 stop
SOF1:00 pmSofia
$697

SWISS flights from Sofia to Boston

Our best SWISS deals on Sofia to Boston flight tickets
SWISS
Jun 10
SOF11:05 amSofia
15h 50m
1 stop
BOS7:55 pmBoston Logan Intl
Oct 1
BOS9:40 pmBoston Logan Intl
10h 20m
1 stop
SOF3:00 pmSofia
$701
SWISS
Feb 16
SOF3:00 pmSofia
12h 00m
1 stop
BOS8:00 pmBoston Logan Intl
Apr 15
BOS5:20 pmBoston Logan Intl
10h 00m
1 stop
SOF10:20 amSofia
$823

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 February 11, 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

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 3/10

6:05 am-2:55 pm

1 stop14h 50m

Boston Logan Intl

Thu 3/19

10:20 pm-9:20 pm

1 stop17h 00m

$581

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 3/11

6:00 am-2:55 pm

1 stop14h 55m

Boston Logan Intl

Tue 3/17

6:10 pm-1:45 pm

1 stop13h 35m

$584

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 3/9

4:00 pm-6:50 pm

3 stops32h 50m

Boston Logan Intl

Wed 3/18

12:35 pm-9:40 pm

2 stops27h 05m

$602

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 3/9

12:00 pm-7:55 pm

1 stop13h 55m

Boston Logan Intl

Thu 3/19

10:20 pm-9:20 pm

1 stop17h 00m

$606

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 3/10

6:05 am-9:10 pm

2 stops21h 05m

Boston Logan Intl

Sat 3/21

10:20 pm-11:35 am

1 stop31h 15m

$631

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 3/10

6:05 am-9:10 pm

2 stops21h 05m

Boston Logan Intl

Mon 3/16

6:10 pm-1:50 pm

1 stop13h 40m

$642

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 3/10

6:05 am-9:10 pm

2 stops21h 05m

Boston Logan Intl

Thu 3/19

10:20 pm-9:20 pm

1 stop17h 00m

$647

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 3/10

6:05 am-9:10 pm

2 stops21h 05m

Boston Logan Intl

Tue 3/17

6:10 pm-1:45 pm

1 stop13h 35m

$650

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 3/9

5:45 am-11:48 am

2 stops36h 03m

Boston Logan Intl

Sat 3/21

10:20 pm-11:35 am

1 stop31h 15m

$654

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 3/16

5:45 am-9:55 pm

2 stops22h 10m

Boston Logan Intl

Mon 3/30

10:50 pm-1:30 am

1 stop19h 40m

$665

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 cheapest month to fly to Boston?

In general, February 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 $623. If you aren’t able to travel during the month of February, then book flights to Boston from Sofia during January instead. Flights to Boston in January, while not as cheap as those in February, still average around $652.

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 $715 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 $520 on momondo.

Can stopping save me money on Sofia to Boston flights?

You could potentially save up to 28% 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

16h 10m

Direct flights

None
The fastest flight from Sofia to Boston takes 16h 10m
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 16h 10m.

  • 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
Turkish AirlinesPriceFrom $520Free CancellationRating
7.3
4,213 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $561Free CancellationRating
7.4
1,531 reviews
Search Air France flights
KLMPriceFrom $562Free CancellationRating
7.7
1,451 reviews
Search KLM flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,272 reviews
Search United Airlines flights
LufthansaPriceFrom $586Free CancellationRating
6.8
7,777 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $588Free CancellationRating
7.5
896 reviews
Search Austrian Airlines flights
ITA AirwaysPriceFrom $819Free CancellationRating
6.7
1,146 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
Nashua
Brockton
Laconia
Warwick
Sturbridge
Chatham
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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