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Cheap flights from Sofia to Boston from $308

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 6/2. 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
7:05 pm - 9:05 pm
SOF
-
BOS
33h 00m
2 stops
Multiple Airlines Logo
11:45 pm - 1:35 am
BOS
-
SOF
18h 50m
1 stop
$597Multiple Airlines
Thu, May 21 - Sun, Jun 7
Multiple Airlines Logo
6:45 pm - 9:05 pm
SOF
-
BOS
33h 20m
1 stop
Multiple Airlines Logo
11:45 pm - 1:35 am
BOS
-
SOF
18h 50m
1 stop
$607Multiple Airlines
Thu, May 21 - Sun, Jun 7
Multiple Airlines Logo
11:25 pm - 9:05 pm
SOF
-
BOS
28h 40m
1 stop
Multiple Airlines Logo
8:05 pm - 11:15 pm
BOS
-
SOF
20h 10m
1 stop
$619Multiple Airlines
Tue, Jun 2 - Tue, Sep 8
Multiple Airlines Logo
6:00 am - 9:05 pm
SOF
-
BOS
22h 05m
2 stops
Multiple Airlines Logo
11:00 pm - 10:40 pm
BOS
-
SOF
16h 40m
1 stop
$626Multiple Airlines
Wed, May 20 - Mon, Sep 21
Multiple Airlines Logo
9:40 pm - 9:05 pm
SOF
-
BOS
30h 25m
1 stop
Multiple Airlines Logo
11:00 pm - 10:40 pm
BOS
-
SOF
16h 40m
1 stop
$659Multiple Airlines
Wed, May 20 - Mon, Sep 21
Multiple Airlines Logo
6:00 am - 9:45 pm
SOF
-
BOS
22h 45m
2 stops
Multiple Airlines Logo
7:50 pm - 2:55 am
BOS
-
SOF
24h 05m
2 stops
$665Multiple Airlines
Tue, Jun 9 - Wed, Jan 20
Multiple Airlines Logo
11:25 pm - 9:05 pm
SOF
-
BOS
28h 40m
1 stop
Multiple Airlines Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m
1 stop
$677Multiple Airlines
Tue, Jun 2 - Tue, Feb 2
Multiple Airlines Logo
11:45 pm - 9:05 pm
SOF
-
BOS
28h 20m
2 stops
Multiple Airlines Logo
8:05 pm - 11:15 pm
BOS
-
SOF
20h 10m
1 stop
$683Multiple Airlines
Tue, Jun 2 - Tue, Sep 8
Multiple Airlines Logo
11:25 pm - 9:05 pm
SOF
-
BOS
28h 40m
1 stop
Multiple Airlines Logo
10:50 pm - 11:10 am
BOS
-
SOF
29h 20m
2 stops
$703Multiple Airlines
Tue, May 26 - Mon, Jun 29
Multiple Airlines Logo
11:25 pm - 9:05 pm
SOF
-
BOS
28h 40m
1 stop
Multiple Airlines Logo
9:30 pm - 10:50 pm
BOS
-
SOF
42h 20m
2 stops
$708Multiple Airlines
Tue, Jun 2 - Tue, Feb 2

Lufthansa flights from Sofia to Boston

Our best Lufthansa deals on Sofia to Boston flight tickets
Lufthansa
Sep 15
SOF2:10 pmSofia
13h 00m
1 stop
BOS8:10 pmBoston Logan Intl
Sep 23
BOS8:05 pmBoston Logan Intl
15h 35m
1 stop
SOF6:40 pmSofia
$789
Lufthansa
Apr 30
SOF2:10 pmSofia
16h 49m
2 stops
BOS11:59 pmBoston Logan Intl
May 13
BOS5:45 pmBoston Logan Intl
22h 30m
2 stops
SOF11:15 pmSofia
$822
Lufthansa
Apr 26
SOF7:25 pmSofia
29h 15m
1 stop
BOS5:40 pmBoston Logan Intl
May 9
BOS8:05 pmBoston Logan Intl
20h 10m
1 stop
SOF11:15 pmSofia
$1,019

SWISS flights from Sofia to Boston

Our best SWISS deals on Sofia to Boston flight tickets
SWISS
May 28
SOF11:05 amSofia
15h 50m
1 stop
BOS7:55 pmBoston Logan Intl
Jun 4
BOS5:20 pmBoston Logan Intl
14h 45m
1 stop
SOF3:05 pmSofia
$792
SWISS
Jun 9
SOF1:05 pmSofia
13h 50m
1 stop
BOS7:55 pmBoston Logan Intl
Jan 20
BOS9:50 pmBoston Logan Intl
10h 25m
1 stop
SOF3:15 pmSofia
$798

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 April 18, 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

Thu 5/21

7:05 pm-9:05 pm

2 stops33h 00m

Boston Logan Intl

Sun 6/7

11:45 pm-1:35 am

1 stop18h 50m

$597

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 5/21

6:45 pm-9:05 pm

1 stop33h 20m

Boston Logan Intl

Sun 6/7

11:45 pm-1:35 am

1 stop18h 50m

$607

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/2

11:25 pm-9:05 pm

1 stop28h 40m

Boston Logan Intl

Tue 9/8

8:05 pm-11:15 pm

1 stop20h 10m

$619
Quickest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 5/20

6:00 am-9:05 pm

2 stops22h 05m

Boston Logan Intl

Mon 9/21

11:00 pm-10:40 pm

1 stop16h 40m

$626

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 5/20

9:40 pm-9:05 pm

1 stop30h 25m

Boston Logan Intl

Mon 9/21

11:00 pm-10:40 pm

1 stop16h 40m

$659

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/9

6:00 am-9:45 pm

2 stops22h 45m

Boston Logan Intl

Wed 1/20

7:50 pm-2:55 am

2 stops24h 05m

$665

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/2

11:25 pm-9:05 pm

1 stop28h 40m

Boston Logan Intl

Tue 2/2

8:40 pm-6:20 pm

1 stop14h 40m

$677

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/2

11:45 pm-9:05 pm

2 stops28h 20m

Boston Logan Intl

Tue 9/8

8:05 pm-11:15 pm

1 stop20h 10m

$683

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 5/26

11:25 pm-9:05 pm

1 stop28h 40m

Boston Logan Intl

Mon 6/29

10:50 pm-11:10 am

2 stops29h 20m

$703

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/2

11:25 pm-9:05 pm

1 stop28h 40m

Boston Logan Intl

Tue 2/2

9:30 pm-10:50 pm

2 stops42h 20m

$708

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 $775 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 $647 on momondo.

Can stopping save me money on Sofia to Boston flights?

You could potentially save up to 35% 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 20m

Direct flights

None
The fastest flight from Sofia to Boston takes 13h 20m
There are no direct flights from Sofia to Boston. There are no popular flight routes from Sofia to Boston.
Search flight deals

Frequently asked questions about flying from Sofia to Boston

  • 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 20m.

  • 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 $569Free CancellationRating
7.4
1,572 reviews
Search Air France flights
Austrian AirlinesPriceFrom $590Free CancellationRating
7.6
902 reviews
Search Austrian Airlines flights
KLMPriceFrom $592Free CancellationRating
7.8
1,502 reviews
Search KLM flights
United AirlinesPriceFrom $630Free CancellationRating
7.4
9,605 reviews
Search United Airlines flights
LufthansaPriceFrom $647Free CancellationRating
6.8
7,930 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $651Free CancellationRating
7.3
4,308 reviews
Search Turkish Airlines flights
ITA AirwaysPriceFrom $819Free CancellationRating
6.7
1,191 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
Gloucester
Narragansett
Brockton
Falmouth
Warwick
Chatham
Sturbridge
Laconia
Nashua
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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