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$418+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — BOS
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
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 March 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/22. 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 6/39:40 pm
SOF
-
BOS
1 stop30h 25m
Multiple Airlines
Tue 6/1610:50 pm
BOS
-
SOF
1 stop30h 45m
Multiple Airlines
Deal found 3/22$643
This KLM deal was found by Cheapflights users on 3/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/57:00 am
SOF
-
BOS
1 stop13h 13m
Multiple Airlines
Mon 4/205:10 pm
BOS
-
SOF
1 stop13h 50m
Multiple Airlines
Deal found 3/18$666
This KLM deal was found by Cheapflights users on 3/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 am
SOF
-
BOS
1 stop16h 25m
Multiple Airlines
Sat 5/99:45 pm
BOS
-
SOF
1 stop33h 15m
Multiple Airlines
Deal found 3/19$670
This KLM deal was found by Cheapflights users on 3/22. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:00 am
SOF
-
BOS
1 stop16h 25m
Multiple Airlines
Thu 4/235:10 pm
BOS
-
SOF
1 stop13h 50m
Multiple Airlines
Deal found 3/22$672
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 am
SOF
-
BOS
1 stop16h 25m
KLM
Fri 5/86:50 pm
BOS
-
SOF
1 stop12h 10m
KLM
Deal found 3/19$674
This FlightHub deal was found by Cheapflights users on 3/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/193:50 pm
SOF
-
BOS
1 stop35h 05m
Turkish Airlines
Sun 9/69:50 pm
BOS
-
SOF
1 stop27h 55m
Turkish Airlines
Deal found 3/22$691
This FlightHub deal was found by Cheapflights users on 3/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/99:35 am
SOF
-
BOS
1 stop17h 20m
Turkish Airlines
Thu 9/249:50 pm
BOS
-
SOF
1 stop15h 25m
Turkish Airlines
Deal found 3/21$702
This FlightHub deal was found by Cheapflights users on 3/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:05 pm
SOF
-
BOS
1 stop29h 50m
Turkish Airlines
Thu 8/209:50 pm
BOS
-
SOF
1 stop15h 25m
Turkish Airlines
Deal found 3/21$705
This FlightHub deal was found by Cheapflights users on 3/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:10 am
BOJ
-
BOS
2 stops39h 30m
Lufthansa
Mon 7/135:45 pm
BOS
-
BOJ
1 stop17h 30m
Lufthansa
Deal found 3/22$832
This FlightHub deal was found by Cheapflights users on 3/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/281:05 pm
BOJ
-
BOS
1 stop31h 45m
Multiple Airlines
Mon 7/135:45 pm
BOS
-
BOJ
1 stop17h 30m
Multiple Airlines
Deal found 3/22$856
This KAYAK deal was found by Cheapflights users on 3/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:25 pm
BOJ
-
BOS
2 stops23h 45m
Aer Lingus
Thu 6/185:40 pm
BOS
-
BOJ
2 stops45h 50m
Aer Lingus
Deal found 3/20$1,390

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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$587
(Kiwi.com)

One-way from

$418
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$731
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
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 22, 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

Sun 5/3

7:00 am-4:25 pm

1 stop16h 25m

Boston Logan Intl

Sat 5/9

9:45 pm-2:00 pm

1 stop33h 15m

$670

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 4/29

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Wed 5/13

8:05 pm-11:00 pm

1 stop19h 55m

$732

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 6/9

9:35 am-7:55 pm

1 stop17h 20m

Boston Logan Intl

Wed 9/23

9:50 pm-8:45 am

1 stop27h 55m

$742

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 4/29

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Tue 5/19

5:50 am-11:00 am

2 stops22h 10m

$742
Quickest round-trip

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 5/21

2:10 pm-11:59 pm

2 stops16h 49m

Boston Logan Intl

Sat 6/6

5:45 pm-1:00 pm

1 stop12h 15m

$743

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 4/1

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Wed 11/4

12:30 pm-6:20 pm

2 stops22h 50m

$760

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 4/2

6:30 am-3:40 pm

1 stop16h 10m

Boston Logan Intl

Wed 12/2

6:00 am-1:15 pm

2 stops24h 15m

$761

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 6/19

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Fri 8/7

10:00 pm-10:30 pm

1 stop17h 30m

$761

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 6/12

6:20 am-3:40 pm

1 stop16h 20m

Boston Logan Intl

Mon 6/29

7:27 pm-6:40 pm

2 stops16h 13m

$761

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 6/10

6:20 am-2:47 pm

2 stops15h 27m

Boston Logan Intl

Fri 9/25

8:05 pm-6:40 pm

1 stop15h 35m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 24 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, January is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $550). Flying from Bulgaria to Boston in February is currently the most expensive (average of $790). 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.

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 March 22, 2026.
Read through reviews of airlines operating flights from Bulgaria to Boston, such as KLM,Austrian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,477 reviews
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Austrian Airlines
7.6
Good
902 reviews
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,460 reviews
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Turkish Airlines
7.3
Good
4,273 reviews
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,862 reviews
KLM
7.8
Good
1,477 reviews

Food

7.3

Overall

7.8

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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 can get you from Bulgaria to Boston in just under 39h 30m. Your travel time can differ by up to . Bulgaria and Boston are separated by a distance of 4693 mi.

  • 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 $548 on SWISS. Other airlines that offer cheap prices include Lufthansa from $577 and Turkish Airlines from $645 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, January is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $550). Flying from Bulgaria to Boston in February is currently the most expensive (average of $790). 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
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Cambridge
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Hampton Beach
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Lincoln
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York Beach
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Old Orchard Beach
Quincy

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Top 7 airlines flying from Bulgaria to Boston

Discover the top 7 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$561Average$799FlexibilityNo cancel feeOn-time77%
KLMCheapest$562Average$685FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$590Average$682FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$630Average$757FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$647Average$781FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$651Average$749FlexibilityNo cancel feeOn-time77%
ITA AirwaysCheapest$819Average$878FlexibilityNo cancel feeOn-time81%

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