What’s the cheapest layover airport for flights from Sofia to Boston?

Paris (CDG) is the most affordable 1-stop option, with an average round-trip price of $538.

What’s the top layover airport for flights from Sofia to Boston?

Paris (CDG) – chosen by Cheapflights users on 80% of 1-stop itineraries from Sofia to Boston on Cheapflights.

What’s the fastest layover option from Sofia to Boston?

Flights via Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 13h 58m.

Which airport typically offers the quickest layover for flights from Sofia to Boston?

Flights via Paris (CDG) offer the fastest connection on this route, with an average layover time of 2h 40m.

How long is the flight from Sofia to Boston?

British Airways can get you from Sofia to Boston in just under 26h 30m. Your travel time can differ by up to . There are 4521 mi between Sofia and Boston.

What are the cheapest airlines flying from Sofia to Boston round-trip?

Turkish Airlines, at $533, was found to be the cheapest airline from Sofia to Boston.Alternate airlines to your destination round-trip include Air France and KLM. Turkish Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $548. However, be on the lookout for offers from Lufthansa and Turkish Airlines, as they are both options that can get you from Sofia to Boston for a low price.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Sofia to Boston?

Lufthansa, Turkish Airlines and United Airlines are the most popular airlines when flying from Sofia to Boston.

Most accurate provider : When it comes to deals on Sofia-Boston flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Sofia-Boston flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Sofia-Boston flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Sofia-Boston flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Sofia to Boston?

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

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

Yes. Cheapflights offers flight deals from Sofia 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.

$412+ Flights from Sofia to Boston

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Sofia to Boston Logan Intl are usually found in January or February, booked 28 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Sofia to Boston

Cheapest flights from Sofia to Boston
Explore the most affordable flight options available from Sofia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Tue 12/236:00 amSOF - BOS

1 stop14h 25mUnited Airlines

Mon 1/512:20 pmBOS - SOF

2 stops27h 25mUnited Airlines

Deal found 12/21

$830

Tue 12/236:00 amSOF - BOS

1 stop14h 25mLufthansa

Mon 1/54:20 pmBOS - SOF

1 stop14h 05mLufthansa

Deal found 12/21

$1,024

Best flights from Sofia to Boston
Discover carefully curated flight deals from Sofia to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Wed 4/229:30 pmSOF - BOS

1 stop26h 30mBritish Airways

Thu 4/309:38 amBOS - SOF

2 stops20h 52mBritish Airways

Deal found 12/22

$586

Tue 4/217:00 amSOF - BOS

1 stop13h 13mKLM

Thu 4/304:35 pmBOS - SOF

1 stop14h 25mKLM

Deal found 12/22

$673

Thu 4/236:30 amSOF - BOS

1 stop16h 10mUnited Airlines

Sun 5/38:05 pmBOS - SOF

1 stop20h 05mUnited Airlines

Deal found 12/22

$689

Wed 4/229:30 pmSOF - BOS

1 stop26h 30mBritish Airways

Sat 5/29:38 amBOS - SOF

2 stops27h 42mBritish Airways

Deal found 12/22

$586

Mon 4/208:00 pmSOF - BOS

2 stops29h 52mBritish Airways

Sat 5/22:18 pmBOS - SOF

2 stops23h 02mBritish Airways

Deal found 12/22

$592

Mon 4/207:00 amSOF - BOS

1 stop16h 25mKLM

Fri 5/16:50 pmBOS - SOF

1 stop12h 10mKLM

Deal found 12/22

$673

Mon 6/156:20 amSOF - BOS

1 stop16h 20mUnited Airlines

Mon 6/298:05 pmBOS - SOF

1 stop20h 05mUnited Airlines

Deal found 12/21

$689

Sun 4/199:10 pmSOF - BOS

2 stops28h 42mBritish Airways

Sun 5/37:30 pmBOS - SOF

1 stop16h 40mBritish Airways

Deal found 12/22

$592

Wed 1/149:00 pmSOF - BOS

1 stop26h 15mBritish Airways

Thu 1/297:15 pmBOS - SOF

1 stop33h 00mBritish Airways

Deal found 12/22

$615

Sun 4/199:10 pmSOF - BOS

2 stops28h 42mBritish Airways

Wed 4/299:50 pmBOS - SOF

1 stop32h 40mBritish Airways

Deal found 12/22

$656

Wed 1/79:00 pmSOF - BOS

2 stops49h 48mBritish Airways

Mon 1/127:35 pmBOS - SOF

2 stops41h 35mBritish Airways

Deal found 12/23

$658

Last-minute flights from Sofia to Boston
Discover last-minute flight deals from Sofia to Boston. Data last updated December 23, 2025 and is based on user searches.

Wed 1/79:00 pmSOF - BOS

2 stops49h 48mBritish Airways

Mon 1/127:35 pmBOS - SOF

2 stops41h 35mBritish Airways

Deal found 12/23

$658

Mon 1/125:55 amSOF - BOS

2 stops22h 00mMultiple Airlines

Thu 1/2910:40 pmBOS - SOF

1 stop17h 35mMultiple Airlines

Deal found 12/22

$674

Mon 1/125:55 amSOF - BOS

2 stops22h 00mMultiple Airlines

Sun 1/2510:40 pmBOS - SOF

1 stop15h 20mMultiple Airlines

Deal found 12/22

$683

Wed 1/149:00 pmSOF - BOS

2 stops49h 48mBritish Airways

Thu 1/297:35 pmBOS - SOF

2 stops32h 40mBritish Airways

Deal found 12/22

$592

Wed 1/149:00 pmSOF - BOS

1 stop26h 15mBritish Airways

Tue 1/277:15 pmBOS - SOF

1 stop17h 55mBritish Airways

Deal found 12/22

$615

Thu 1/155:00 amSOF - BOS

2 stops22h 55mMultiple Airlines

Thu 1/2910:40 pmBOS - SOF

1 stop17h 50mMultiple Airlines

Deal found 12/22

$642

Fri 1/164:45 pmSOF - BOS

1 stop35h 10mMultiple Airlines

Sun 1/2510:40 pmBOS - SOF

1 stop17h 50mMultiple Airlines

Deal found 12/22

$560

Fri 1/167:15 pmSOF - BOS

2 stops32h 40mMultiple Airlines

Thu 1/2910:40 pmBOS - SOF

1 stop17h 35mMultiple Airlines

Deal found 12/22

$582

Sat 1/247:15 pmSOF - BOS

1 stop32h 40mMultiple Airlines

Sun 2/810:45 pmBOS - SOF

2 stops33h 55mMultiple Airlines

Deal found 12/23

$603

Sat 1/2412:05 pmSOF - BOS

1 stop16h 50mBritish Airways

Sun 2/86:55 pmBOS - SOF

1 stop14h 25mBritish Airways

Deal found 12/23

$616

One-way flights from Sofia to Boston
Search for one-way flight options from Sofia to Boston. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Mon 4/278:00 pmSOF - BOS

1 stop24h 35mMultiple Airlines

Deal found 12/21

$412

Mon 4/278:00 pmSOF - BOS

2 stops28h 00mBritish Airways

Deal found 12/21

$423

Thu 1/1511:15 pmSOF - BOS

2 stops52h 40mMultiple Airlines

Deal found 12/21

$426

Thu 1/83:15 pmSOF - BOS

3 stops35h 45mMultiple Airlines

Deal found 12/21

$512

Wed 1/78:55 pmSOF - BOS

3 stops54h 05mMultiple Airlines

Deal found 12/21

$588

Tue 1/610:10 pmSOF - BOS

3 stops28h 50mMultiple Airlines

Deal found 12/21

$613

Sun 2/12:30 pmSOF - BOS

1 stop14h 25mBritish Airways

Deal found 12/21

$658

Sun 2/12:30 pmSOF - BOS

2 stops15h 26mMultiple Airlines

Deal found 12/22

$676

Thu 1/159:35 amSOF - BOS

1 stop15h 30mTurkish Airlines

Deal found 12/21

$685

Find flight deals from Sofia to Boston

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$418 (Kiwi.com)
One-way from	$412 (Finnair)
Popular in	December
Cheapest in	January
Average price	$821

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 Sofia to Boston Logan Intl

Search Deals

One-way flight from Sofia to Boston Logan Intl

Search Deals

Highest demand for flights based on searches. 0% potential increase in price ($5 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 4/22

9:30 pm-5:00 pm

1 stop26h 30m

Boston Logan Intl

Thu 4/30

9:38 am-1:30 pm

2 stops20h 52m

$586

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 4/22

9:30 pm-5:00 pm

1 stop26h 30m

Boston Logan Intl

Sat 5/2

9:38 am-8:20 pm

2 stops27h 42m

$586

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 4/20

8:00 pm-6:52 pm

2 stops29h 52m

Boston Logan Intl

Sat 5/2

2:18 pm-8:20 pm

2 stops23h 02m

$592

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/19

9:10 pm-6:52 pm

2 stops28h 42m

Boston Logan Intl

Sun 5/3

7:30 pm-7:10 pm

1 stop16h 40m

$592

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 1/14

9:00 pm-4:15 pm

1 stop26h 15m

Boston Logan Intl

Thu 1/29

7:15 pm-11:15 am

1 stop33h 00m

$615

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Sun 4/19

9:10 pm-6:52 pm

2 stops28h 42m

Boston Logan Intl

Wed 4/29

9:50 pm-1:30 pm

1 stop32h 40m

$656

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Wed 1/7

9:00 pm-3:48 pm

2 stops49h 48m

Boston Logan Intl

Mon 1/12

7:35 pm-8:10 pm

2 stops41h 35m

$658

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Tue 4/21

7:00 am-1:13 pm

1 stop13h 13m

Boston Logan Intl

Thu 4/30

4:35 pm-2:00 pm

1 stop14h 25m

$673

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Mon 4/20

7:00 am-4:25 pm

1 stop16h 25m

Boston Logan Intl

Fri 5/1

6:50 pm-2:00 pm

1 stop12h 10m

$673

SofiaBoston

SOF - BOS

SOFBOS

Sofia

Thu 4/23

6:30 am-3:40 pm

1 stop16h 10m

Boston Logan Intl

Sun 5/3

8:05 pm-11:10 pm

1 stop20h 05m

$689

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 18 results

Compare providers for flights from Sofia to Boston

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to Boston in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Sofia-Boston flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Sofia-Boston flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Sofia-Boston flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Sofia-Boston flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sofia to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sofia 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 Sofia to Boston

Prices

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

The price you pay for your flight from Sofia to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 28 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Sofia to Boston (average of $517). Flying from Sofia to Boston in August is currently the most expensive (average of $595). 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 SOF to BOS?

A simple way to save on the total cost of your ticket is to fly from Sofia to Boston in the afternoon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.

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

Travelers seeking maximum savings on their Sofia 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

Read reviews from past customers who have flown KLM, Air France, and United Airlines from Sofia to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

KLM

7.7

Good

1,434 reviews

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Air France

7.4

Good

1,513 reviews

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

United Airlines

7.4

Good

9,107 reviews

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Turkish Airlines

7.3

Good

4,112 reviews

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Lufthansa

6.8

Okay

7,649 reviews

KLM

7.7

Good

1,434 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

How long is the flight from Sofia to Boston?
British Airways can get you from Sofia to Boston in just under 26h 30m. Your travel time can differ by up to . There are 4521 mi between Sofia and Boston.
What are the cheapest airlines flying from Sofia to Boston round-trip?
Turkish Airlines, at $533, was found to be the cheapest airline from Sofia to Boston.Alternate airlines to your destination round-trip include Air France and KLM. Turkish Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Sofia to Boston one-way?
The cheapest airline one-way is SWISS, with whom users have recently found tickets for as low as $548. However, be on the lookout for offers from Lufthansa and Turkish Airlines, as they are both options that can get you from Sofia to Boston for a low price.
Can I find deals for flights from Sofia to Boston that include hotel bookings?
Yes. In addition to deals on Sofia to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sofia to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Boston.
Can I find deals for business class flights from Sofia to Boston?
Yes. Cheapflights offers flight deals from Sofia 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 Sofia to Boston?
Currently, March is the cheapest month in which you can book a flight from Sofia to Boston (average of $517). Flying from Sofia to Boston in August is currently the most expensive (average of $595). 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

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Top 8 airlines flying from Sofia to Boston

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$533	Average$702	FlexibilityNo cancel fee	On-time77%
Air France	Cheapest$538	Average$647	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$556	Average$667	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$586	Average$721	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$586	Average$728	FlexibilityNo cancel fee	On-time76%
Austrian Airlines	Cheapest$590	Average$671	FlexibilityNo cancel fee	On-time78%
SWISS	Cheapest$594	Average$752	FlexibilityNo cancel fee	On-time79%
ITA Airways	Cheapest$819	Average$878	FlexibilityNo cancel fee	On-time81%

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$412+ Cheap flights from Sofia (SOF) 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sofia to Boston with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Sofia to Boston Logan Intl are usually found in January or February, booked 28 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Sofia to Boston

Cheapest flights from Sofia to BostonExplore the most affordable flight options available from Sofia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from Sofia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from Sofia to Boston

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sofia to Boston that are best for you.

Compare providers for flights from Sofia to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to Boston in December.

Best time to book a flight from Sofia to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sofia with our price prediction graph.

Cheapflights Insights

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

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

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

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

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

What’s the top layover airport for flights from Sofia to Boston?

What’s the cheapest layover airport for flights from Sofia to Boston?

What’s the fastest layover option from Sofia to Boston?

Which airport typically offers the quickest layover for flights from Sofia to Boston?

Reviews of airlines servicing Boston

Read reviews from past customers who have flown KLM, Air France, and United Airlines from Sofia to Boston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Sofia to Boston?

What are the cheapest airlines flying from Sofia to Boston round-trip?

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

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

How can I find direct flights from Sofia to Boston?

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

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

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Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on December 23, 2025.

Top 8 airlines flying from Sofia to Boston

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Cheapest flights from Sofia to Boston
Explore the most affordable flight options available from Sofia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.