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Cheap flights from Sofia to Boston from $205

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 1/30. 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
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$341Multiple Airlines
Find Deal
Sun, Feb 8 - Sat, Feb 21
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$342Multiple Airlines
Find Deal
Sun, Feb 8 - Mon, Feb 23
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$343Multiple Airlines
Find Deal
Sun, Feb 8 - Thu, Feb 26
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$345Multiple Airlines
Find Deal
Sun, Feb 8 - Thu, Feb 26
Multiple Airlines Logo
11:15 am - 8:55 pmSOF-BOS
40h 40m2 stops
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$347Multiple Airlines
Find Deal
Wed, Feb 11 - Thu, Feb 26
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$348Multiple Airlines
Find Deal
Sun, Feb 8 - Thu, Feb 26
Multiple Airlines Logo
11:15 am - 8:55 pmSOF-BOS
40h 40m2 stops
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$349Multiple Airlines
Find Deal
Wed, Feb 11 - Mon, Feb 23
Multiple Airlines Logo
11:15 am - 8:55 pmSOF-BOS
40h 40m2 stops
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$350Multiple Airlines
Find Deal
Wed, Feb 11 - Thu, Feb 26
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$351Multiple Airlines
Find Deal
Sun, Feb 8 - Thu, Feb 26
Multiple Airlines Logo
4:45 pm - 8:55 pmSOF-BOS
35h 10m1 stop
Multiple Airlines Logo
10:40 pm - 11:30 pmBOS-SOF
17h 50m1 stop
$352Multiple Airlines
Find Deal
Sun, Feb 8 - Mon, Feb 23

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 November 25, 2025.
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

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Sat 2/21

10:40 pm-11:30 pm

1 stop17h 50m

$341

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Mon 2/23

10:40 pm-11:30 pm

1 stop17h 50m

$342

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$343

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$345

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 2/11

11:15 am-8:55 pm

2 stops40h 40m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$347

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$348

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 2/11

11:15 am-8:55 pm

2 stops40h 40m

Boston Logan Intl

Mon 2/23

10:40 pm-11:30 pm

1 stop17h 50m

$349

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 2/11

11:15 am-8:55 pm

2 stops40h 40m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$350

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Thu 2/26

10:40 pm-11:30 pm

1 stop17h 50m

$351

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 2/8

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Mon 2/23

10:40 pm-11:30 pm

1 stop17h 50m

$352

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 $592. If you aren’t able to travel during the month of January, then book flights to Boston from Sofia during February instead. Flights to Boston in February, while not as cheap as those in January, still average around $631.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from Sofia to Boston is on a Thursday when prices can be found for as low as $644. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $752.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Sofia to Boston in the afternoon for as low as $596. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $709 per ticket.

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 $694 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 1% 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

12h 45m

Direct flights

None
The fastest flight from Sofia to Boston takes 12h 45m
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 18h 25m.

  • 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
British AirwaysPriceFrom $494Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
Turkish AirlinesPriceFrom $533Free CancellationRating
7.3
4,059 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $538Free CancellationRating
7.4
1,497 reviews
Search Air France flights
KLMPriceFrom $556Free CancellationRating
7.7
1,422 reviews
Search KLM flights
LufthansaPriceFrom $580Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
United AirlinesPriceFrom $583Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $588Free CancellationRating
7.6
874 reviews
Search Austrian Airlines flights
SWISSPriceFrom $594Free CancellationRating
7.5
1,794 reviews
Search SWISS flights
ITA AirwaysPriceFrom $819Free CancellationRating
6.7
1,089 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
Plymouth
Kennebunkport
South Yarmouth
Cambridge
Narragansett
Nashua
Gloucester
Falmouth
Laconia
Brockton
Concord
Everett
Sturbridge
Chatham

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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