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$386+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — BOS
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap flight deals from Bulgaria to Boston

Keep the following information in mind while searching for Bulgaria to Boston flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$637
(KLM)

One-way from

$386
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$751
Provider with most accurate pricing for Sofia-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Sofia-Boston Logan Intl flights.
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From Bulgaria to Boston Logan Intl
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One-way flight from Bulgaria to Boston Logan Intl
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Highest demand for flights based on searches. 1% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Sat 12/134:45 pmSOF - BOS
1 stop35h 10mMultiple Airlines
Thu 1/2910:40 pmBOS - SOF
1 stop17h 50mMultiple Airlines
Deal found 10/16$494
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Mon 12/158:55 pmSOF - BOS
2 stops31h 00mMultiple Airlines
Thu 1/1510:40 pmBOS - SOF
1 stop17h 50mMultiple Airlines
Deal found 10/16$516
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Sat 12/137:15 pmSOF - BOS
1 stop32h 40mMultiple Airlines
Sat 1/3110:40 pmBOS - SOF
2 stops15h 30mMultiple Airlines
Deal found 10/16$598
This KLM deal was found by Cheapflights users on 10/16. 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 12/137:00 amSOF - BOS
1 stop13h 20mMultiple Airlines
Fri 1/306:30 pmBOS - SOF
1 stop12h 25mMultiple Airlines
Deal found 10/16$637
This KLM deal was found by Cheapflights users on 10/15. 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 10/317:00 amSOF - BOS
1 stop13h 20mMultiple Airlines
Thu 11/136:30 pmBOS - SOF
1 stop12h 25mMultiple Airlines
Deal found 10/15$639
This Air France deal was found by Cheapflights users on 10/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:10 amSOF - BOS
1 stop13h 30mAir France
Wed 11/126:30 pmBOS - SOF
1 stop12h 35mAir France
Deal found 10/16$643
This KLM deal was found by Cheapflights users on 10/15. 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.
Thu 11/207:00 amSOF - BOS
1 stop13h 20mKLM
Wed 12/107:10 pmBOS - SOF
1 stop11h 55mKLM
Deal found 10/15$644
This Air Canada deal was found by Cheapflights users on 10/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:00 amSOF - BOS
2 stops20h 12mAir Canada
Wed 12/105:30 amBOS - SOF
2 stops25h 20mAir Canada
Deal found 10/16$647

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 October 16, 2025.
Use the filters below to find and compare flights from Bulgaria to Boston that are best for you.

Fly from

Bulgaria

Fly to

Boston

Route

Depart

Return

Price

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 12/15

4:45 pm-8:55 pm

1 stop35h 10m

Boston Logan Intl

Thu 1/15

10:40 pm-11:30 pm

1 stop17h 50m

$494

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 12/13

8:35 pm-8:55 pm

2 stops31h 20m

Boston Logan Intl

Thu 1/29

10:40 pm-11:15 pm

1 stop17h 35m

$514

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 12/13

7:00 am-1:20 pm

1 stop13h 20m

Boston Logan Intl

Sat 1/31

6:30 pm-1:55 pm

1 stop12h 25m

$637

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 12/13

7:00 am-1:20 pm

1 stop13h 20m

Boston Logan Intl

Fri 1/30

6:30 pm-1:55 pm

1 stop12h 25m

$637

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sat 12/13

12:05 pm-9:55 pm

1 stop16h 50m

Boston Logan Intl

Fri 1/30

6:10 am-11:15 am

2 stops22h 05m

$639

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Fri 10/31

7:00 am-2:20 pm

1 stop13h 20m

Boston Logan Intl

Thu 11/13

6:30 pm-1:55 pm

1 stop12h 25m

$639

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 11/20

7:00 am-1:20 pm

1 stop13h 20m

Boston Logan Intl

Wed 12/10

7:10 pm-2:05 pm

1 stop11h 55m

$643

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 12/3

9:55 pm-9:57 am

2 stops43h 02m

$386

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 12/2

3:10 pm-2:35 pm

2 stops30h 25m

$387

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 12/1

8:55 pm-8:49 pm

3 stops54h 54m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 13 results
1
2

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, March is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $517). Flying from Bulgaria to Boston in August is currently the most expensive (average of $592). 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.

What is the cheapest time of day to fly from BG to BOS?

Find hourly flight availability from Bulgaria to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 28% on flights from Bulgaria to Boston by exploring options for tickets in the evening.

What is the cheapest day to fly from Bulgaria to Boston?

Use this chart to determine the cheapest time to fly round-trip from Bulgaria to Boston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Bulgaria to Boston flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 16, 2025.
Read through reviews of airlines operating flights from Bulgaria to Boston, such as KLM, United Airlines, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,404 reviews
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
8,982 reviews
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,010 reviews
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,497 reviews
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,457 reviews
KLM
7.7
Good
1,404 reviews

Overall

7.7

Comfort

7.6

Food

7.3

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • 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, March is the cheapest month in which you can book a flight from Bulgaria to Boston (average of $517). Flying from Bulgaria to Boston in August is currently the most expensive (average of $592). 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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Watertown
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Lowell
Smithfield
Cranston
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Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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Top 9 airlines flying from Bulgaria to Boston

Discover the top 9 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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$494Average$688FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$533Average$674FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$538Average$644FlexibilityNo cancel feeOn-time77%
KLMCheapest$545Average$685FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$567Average$671FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$580Average$733FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$583Average$698FlexibilityNo cancel feeOn-time69%
SWISSCheapest$594Average$746FlexibilityNo cancel feeOn-time79%
ITA AirwaysCheapest$819Average$878FlexibilityNo cancel feeOn-time81%

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