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$273+ Cheap flights from Bulgaria to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — BOS
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheap flight deals from Bulgaria to Boston

Cheapest flights from Bulgaria to Boston
Explore the most affordable flight options available from Bulgaria to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am
SOF
-
BOS
2 stops21h 35m
Multiple Airlines
Sun 10/1811:35 pm
BOS
-
SOF
1 stop19h 00m
Multiple Airlines
Deal found 7/24$608
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:15 pm
SOF
-
BOS
2 stops15h 50m
Multiple Airlines
Sun 10/1811:35 pm
BOS
-
SOF
1 stop19h 00m
Multiple Airlines
Deal found 7/23$689
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am
SOF
-
BOS
1 stop22h 30m
Multiple Airlines
Sun 10/1811:35 pm
BOS
-
SOF
2 stops16h 35m
Multiple Airlines
Deal found 7/24$693
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:00 pm
SOF
-
BOS
2 stops35h 40m
Multiple Airlines
Thu 9/178:05 pm
BOS
-
SOF
2 stops15h 15m
Multiple Airlines
Deal found 7/27$696
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am
SOF
-
BOS
2 stops19h 50m
Multiple Airlines
Sun 10/1811:35 pm
BOS
-
SOF
1 stop19h 00m
Multiple Airlines
Deal found 7/24$702
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:10 am
SOF
-
BOS
1 stop17h 55m
Multiple Airlines
Wed 10/148:50 pm
BOS
-
SOF
2 stops19h 10m
Multiple Airlines
Deal found 7/23$726
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am
SOF
-
BOS
1 stop22h 30m
Multiple Airlines
Wed 10/148:50 pm
BOS
-
SOF
2 stops19h 10m
Multiple Airlines
Deal found 7/23$736

Find flight deals from Bulgaria to Boston

Keep the following information in mind while searching for Bulgaria to Boston flight deals. Data was last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$608
(Kiwi.com)

One-way from

$273
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$807
Provider with most accurate pricing for Sofia-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Boston Logan Intl flights.
Search Deals
From Bulgaria to Boston Logan Intl
Search Deals
One-way flight from Bulgaria to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Bulgaria to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/11

6:20 am-8:10 pm

1 stop20h 50m

Boston Logan Intl

Sun 9/27

8:05 pm-11:15 pm

1 stop20h 10m

$775

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 8/13

6:30 am-8:10 pm

1 stop20h 40m

Boston Logan Intl

Thu 8/27

9:40 pm-12:55 pm

1 stop32h 15m

$779

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 9/4

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Mon 9/28

12:36 pm-11:15 pm

2 stops27h 39m

$782
Quickest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 10/1

2:10 pm-8:10 pm

1 stop13h 00m

Boston Logan Intl

Thu 10/15

8:05 pm-11:15 pm

1 stop20h 10m

$782

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 10/3

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Thu 10/15

8:05 pm-11:15 pm

1 stop20h 10m

$782

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 8/13

6:30 am-8:10 pm

1 stop20h 40m

Boston Logan Intl

Thu 8/27

8:05 pm-11:15 pm

1 stop20h 10m

$783

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 9/30

6:20 am-8:10 pm

1 stop20h 50m

Boston Logan Intl

Wed 10/14

8:05 pm-11:15 pm

1 stop20h 10m

$783

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 10/3

1:55 pm-8:10 pm

1 stop13h 15m

Boston Logan Intl

Mon 10/19

8:05 pm-11:15 pm

1 stop20h 10m

$783

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 10/3

6:20 am-8:10 pm

1 stop20h 50m

Boston Logan Intl

Sun 10/18

8:05 pm-11:15 pm

1 stop20h 10m

$783

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 9/29

2:10 pm-6:07 pm

2 stops34h 57m

Boston Logan Intl

Thu 10/15

8:05 pm-11:15 pm

1 stop20h 10m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Bulgaria to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Bulgaria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bulgaria to Boston

What is the cheapest month to book a flight from Bulgaria to Boston?

Currently, November is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $675). Flying from Bulgaria to Boston in May is currently the most expensive (average of $961). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Bulgaria to Boston?

The best time to book flights from Bulgaria to Boston is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated July 28, 2026.
Read through reviews of airlines operating flights from Bulgaria to Boston, such as KLM,Austrian Airlines, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
KLM
7.8
Good
1,550 reviews
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Austrian Airlines
7.6
Good
950 reviews
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Turkish Airlines
7.4
Good
4,455 reviews
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
United Airlines
7.4
Good
10,051 reviews
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Lufthansa
6.8
Okay
8,164 reviews
KLM
7.8
Good
1,550 reviews

Entertainment

7.2

Crew

8.4

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Subhash,Jul 2026

CDG - ATL

The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.

Related info for your journey

Find useful and relevant information for your journey from Bulgaria to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boston from Bulgaria?

    For a flight from Bulgaria to Boston, you will be flying into Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city.

  • How long is the flight from Bulgaria to Boston?

    Lufthansa and United Airlines can get you from Bulgaria to Boston in just under 16h 20m. Your travel time can differ by up to 4h 30m. Bulgaria and Boston are separated by a distance of 4521 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Bulgaria to Boston one-way?

    One-way options have recently been found by users for as low as $636 on Lufthansa. Other airlines that offer cheap prices include SWISS from $658 and Turkish Airlines from $676 one-way.

  • Can I find deals for flights from Bulgaria to Boston that include hotel bookings?

    Yes. In addition to deals on Bulgaria to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bulgaria to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bulgaria to Boston.

  • Can I find deals for business class flights from Bulgaria to Boston?

    Yes. Cheapflights offers flight deals from Bulgaria to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bulgaria to Boston?

    Currently, November is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $675). Flying from Bulgaria to Boston in May is currently the most expensive (average of $961). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Cambridge
Concord
Randolph
Brockton
Seekonk
Hampton Beach
Cranston
Warwick
Peabody
Dedham
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Revere

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Top 6 airlines flying from Bulgaria to Boston

Discover the top 6 airlines that operate flights from Bulgaria to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$590Average$804FlexibilityNo cancel feeOn-time78%
KLMCheapest$592Average$785FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$649Average$786FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$651Average$749FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$658Average$799FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$682Average$833FlexibilityNo cancel feeOn-time77%

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