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Cheap flights from Sofia to Boston from $472

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 8/23. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sofia to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 am - 9:45 am
SOF
-
BOS
35h 00m
2 stops
Multiple Airlines Logo
3:35 pm - 10:40 pm
BOS
-
SOF
24h 05m
2 stops
$697Multiple Airlines
Thu, Jul 2 - Mon, Jul 6
Multiple Airlines Logo
5:45 am - 9:27 pm
SOF
-
BOS
22h 42m
3 stops
Multiple Airlines Logo
3:35 pm - 10:40 pm
BOS
-
SOF
24h 05m
2 stops
$705Multiple Airlines
Thu, Jul 2 - Mon, Jul 6
Lufthansa Logo
6:20 am - 3:40 pm
SOF
-
BOS
16h 20m
1 stop
Lufthansa Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m
1 stop
$706Lufthansa
Fri, Sep 25 - Mon, Nov 30
Lufthansa Logo
1:55 pm - 8:10 pm
SOF
-
BOS
13h 15m
1 stop
Lufthansa Logo
8:40 pm - 6:20 pm
BOS
-
SOF
14h 40m
1 stop
$707Lufthansa
Sat, Sep 26 - Sat, Nov 28
Multiple Airlines Logo
5:45 am - 9:27 pm
SOF
-
BOS
22h 42m
3 stops
Multiple Airlines Logo
3:35 pm - 10:40 pm
BOS
-
SOF
24h 05m
3 stops
$710Multiple Airlines
Thu, Jul 2 - Mon, Jul 6
Austrian Airlines Logo
4:05 pm - 1:50 pm
SOF
-
BOS
28h 45m
1 stop
Austrian Airlines Logo
6:55 pm - 6:00 pm
BOS
-
SOF
16h 05m
1 stop
$714Austrian Airlines
Tue, Sep 29 - Tue, Nov 24
Austrian Airlines Logo
8:00 am - 1:50 pm
SOF
-
BOS
12h 50m
1 stop
Austrian Airlines Logo
6:55 pm - 11:50 am
BOS
-
SOF
9h 55m
1 stop
$720Austrian Airlines
Fri, Sep 25 - Fri, Nov 27
British Airways Logo
2:15 pm - 10:35 pm
SOF
-
BOS
15h 20m
1 stop
British Airways Logo
7:00 pm - 1:00 pm
BOS
-
SOF
35h 00m
2 stops
$724British Airways
Fri, Sep 25 - Fri, Nov 27
Lufthansa Logo
6:30 am - 3:40 pm
SOF
-
BOS
16h 10m
1 stop
Lufthansa Logo
4:05 pm - 1:15 pm
BOS
-
SOF
14h 10m
2 stops
$728Lufthansa
Thu, Sep 3 - Thu, Nov 26
United Airlines Logo
6:20 am - 3:40 pm
SOF
-
BOS
16h 20m
1 stop
United Airlines Logo
9:50 am - 1:15 pm
BOS
-
SOF
20h 25m
2 stops
$729United Airlines
Fri, Sep 25 - Mon, Nov 30

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Turkish Airlines flights from Sofia to Boston

Our best Turkish Airlines deals on Sofia to Boston flight tickets
Turkish Airlines
Jul 27
SOF3:50 pmSofia
35h 05m
1 stop
BOS7:55 pmBoston Logan Intl
Aug 11
BOS9:50 pmBoston Logan Intl
27h 55m
1 stop
SOF8:45 amSofia
$754
Turkish Airlines
Jul 20
SOF9:10 pmSofia
29h 45m
1 stop
BOS7:55 pmBoston Logan Intl
Aug 26
BOS9:50 pmBoston Logan Intl
30h 55m
1 stop
SOF11:45 amSofia
$756
Turkish Airlines
Jul 22
SOF3:50 pmSofia
35h 05m
1 stop
BOS7:55 pmBoston Logan Intl
Aug 16
BOS9:50 pmBoston Logan Intl
27h 55m
1 stop
SOF8:45 amSofia
$758

United Airlines flights from Sofia to Boston

Our best United Airlines deals on Sofia to Boston flight tickets
United Airlines
Sep 25
SOF6:20 amSofia
16h 20m
1 stop
BOS3:40 pmBoston Logan Intl
Nov 30
BOS9:50 amBoston Logan Intl
20h 25m
2 stops
SOF1:15 pmSofia
$729
United Airlines
Sep 25
SOF6:10 amSofia
16h 30m
2 stops
BOS3:40 pmBoston Logan Intl
Nov 30
BOS1:30 pmBoston Logan Intl
16h 45m
2 stops
SOF1:15 pmSofia
$753
United Airlines
Sep 25
SOF6:10 amSofia
16h 30m
2 stops
BOS3:40 pmBoston Logan Intl
Nov 24
BOS9:50 pmBoston Logan Intl
13h 30m
2 stops
SOF6:20 pmSofia
$773

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 June 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 7/2

5:45 am-9:45 am

2 stops35h 00m

Boston Logan Intl

Mon 7/6

3:35 pm-10:40 pm

2 stops24h 05m

$697

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 7/2

5:45 am-9:27 pm

3 stops22h 42m

Boston Logan Intl

Mon 7/6

3:35 pm-10:40 pm

2 stops24h 05m

$705

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/25

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Mon 11/30

8:40 pm-6:20 pm

1 stop14h 40m

$706

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 9/26

1:55 pm-8:10 pm

1 stop13h 15m

Boston Logan Intl

Sat 11/28

8:40 pm-6:20 pm

1 stop14h 40m

$707

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 7/2

5:45 am-9:27 pm

3 stops22h 42m

Boston Logan Intl

Mon 7/6

3:35 pm-10:40 pm

3 stops24h 05m

$710

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 9/29

4:05 pm-1:50 pm

1 stop28h 45m

Boston Logan Intl

Tue 11/24

6:55 pm-6:00 pm

1 stop16h 05m

$714
Quickest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/25

8:00 am-1:50 pm

1 stop12h 50m

Boston Logan Intl

Fri 11/27

6:55 pm-11:50 am

1 stop9h 55m

$720

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/25

2:15 pm-10:35 pm

1 stop15h 20m

Boston Logan Intl

Fri 11/27

7:00 pm-1:00 pm

2 stops35h 00m

$724

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 9/3

6:30 am-3:40 pm

1 stop16h 10m

Boston Logan Intl

Thu 11/26

4:05 pm-1:15 pm

2 stops14h 10m

$728

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/25

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Mon 11/30

9:50 am-1:15 pm

2 stops20h 25m

$729

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, November 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 $675. If you aren’t able to travel during the month of November, then book flights to Boston from Sofia during January instead. Flights to Boston in January, while not as cheap as those in November, still average around $680.

How far in advance should I book a flight from Sofia 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 $799 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 46% 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 40m

Direct flights

None
The fastest flight from Sofia to Boston takes 13h 40m
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 40m.

  • 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
Austrian AirlinesPriceFrom $590Free CancellationRating
7.6
937 reviews
Search Austrian Airlines flights
KLMPriceFrom $592Free CancellationRating
7.8
1,530 reviews
Search KLM flights
United AirlinesPriceFrom $649Free CancellationRating
7.4
9,861 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $651Free CancellationRating
7.4
4,409 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $658Free CancellationRating
6.8
8,074 reviews
Search Lufthansa flights
Air FrancePriceFrom $682Free CancellationRating
7.4
1,609 reviews
Search Air France 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
Cambridge
Kennebunkport
Plymouth
South Yarmouth
Gloucester
Revere
Laconia
Narragansett
Brockton
Falmouth
Warwick
Chatham
South Portland
Sturbridge

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.

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