HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$417+ 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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — BOS
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Boston with Cheapflights

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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Sofia to Boston Logan Intl are usually found in September or January, booked 79 days in advance, depart on a Thursday or Monday and return on a Tuesday

Cheap flight deals from Sofia to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$548
(British Airways)

One-way from

$417
(Mytrip)

Popular in

August

Cheapest in

September

Average price

$715
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. 1% potential increase in price ($11 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 April 2025
Search Deals

Find 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 abril 17, 2025.

This British Airways deal was found by Cheapflights users on 4/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/162:20 pmSOF - BOS
1 stop12h 50mBritish Airways
dom. 6/19:55 pmBOS - SOF
1 stop14h 15mBritish Airways
Deal found 4/16$548
This KLM deal was found by Cheapflights users on 4/16. 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.
jue. 5/157:00 amSOF - BOS
1 stop13h 35mMultiple Airlines
jue. 6/56:50 pmBOS - SOF
1 stop12h 10mMultiple Airlines
Deal found 4/16$580
This Air France deal was found by Cheapflights users on 4/17. 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.
dom. 5/187:00 amSOF - BOS
1 stop13h 35mAir France
sáb. 5/245:20 pmBOS - SOF
1 stop13h 40mAir France
Deal found 4/17$584
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/136:20 amSOF - BOS
2 stops18h 37mUnited Airlines
mar. 5/278:05 pmBOS - SOF
1 stop19h 55mUnited Airlines
Deal found 4/17$614
This FlightHub deal was found by Cheapflights users on 4/17. 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.
mar. 5/131:15 pmSOF - BOS
1 stop13h 40mSWISS
mar. 5/279:40 pmBOS - SOF
1 stop29h 25mSWISS
Deal found 4/17$632
This Lufthansa deal was found by Cheapflights users on 4/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/236:00 amSOF - BOS
1 stop18h 40mLufthansa
mié. 8/138:05 pmBOS - SOF
1 stop19h 55mLufthansa
Deal found 4/16$640
This Air Canada deal was found by Cheapflights users on 4/17. 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.
mar. 5/136:20 amSOF - BOS
2 stops18h 37mAir Canada
mar. 5/276:20 pmBOS - SOF
2 stops33h 55mAir Canada
Deal found 4/17$655
This Justfly.com deal was found by Cheapflights users on 4/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/169:25 amSOF - BOS
1 stop17h 15mTurkish Airlines
dom. 4/279:35 pmBOS - SOF
1 stop34h 10mTurkish Airlines
Deal found 4/15$778
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/162:20 pmSOF - BOS
2 stops15h 29mAmerican Airlines
sáb. 5/319:40 amBOS - SOF
2 stops27h 40mAmerican Airlines
Deal found 4/16$4,456

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
Use the filters below to find and compare flights from Sofia to Boston that are best for you.

Fly from

Sofia

Fly to

Boston

Route

Depart

Return

Price

SofiaBoston

SOF - BOS

SOFBOS

Sofia

vie. 5/16

2:20 pm-8:10 pm

1 stop12h 50m

Boston Logan Intl

dom. 6/1

9:55 pm-7:10 pm

1 stop14h 15m

$548

SofiaBoston

SOF - BOS

SOFBOS

Sofia

jue. 5/15

7:00 am-1:35 pm

1 stop13h 35m

Boston Logan Intl

jue. 6/5

6:50 pm-2:00 pm

1 stop12h 10m

$580

SofiaBoston

SOF - BOS

SOFBOS

Sofia

dom. 5/18

7:00 am-1:35 pm

1 stop13h 35m

Boston Logan Intl

sáb. 5/24

5:20 pm-2:00 pm

1 stop13h 40m

$584

SofiaBoston

SOF - BOS

SOFBOS

Sofia

mar. 5/13

6:20 am-5:57 pm

2 stops18h 37m

Boston Logan Intl

mar. 5/27

8:05 pm-11:00 pm

1 stop19h 55m

$614

SofiaBoston

SOF - BOS

SOFBOS

Sofia

mar. 5/13

1:15 pm-7:55 pm

1 stop13h 40m

Boston Logan Intl

mar. 5/27

9:40 pm-10:05 am

1 stop29h 25m

$632

SofiaBoston

SOF - BOS

SOFBOS

Sofia

vie. 5/23

6:00 am-5:40 pm

1 stop18h 40m

Boston Logan Intl

mié. 8/13

8:05 pm-11:00 pm

1 stop19h 55m

$640

SofiaBoston

SOF - BOS

SOFBOS

Sofia

mar. 5/13

6:20 am-5:57 pm

2 stops18h 37m

Boston Logan Intl

mar. 5/27

6:20 pm-11:15 am

2 stops33h 55m

$655

SofiaBoston

SOF - BOS

SOFBOS

Sofia

vie. 5/16

2:20 pm-10:49 pm

2 stops15h 29m

Boston Logan Intl

sáb. 5/31

9:40 am-8:20 pm

2 stops27h 40m

$4,456

SofiaBoston

SOF - BOS

SOFBOS

Sofia

dom. 7/6

5:55 pm-5:37 pm

2 stops30h 42m

$417

SofiaBoston

SOF - BOS

SOFBOS

Sofia

lun. 6/16

1:30 pm-3:05 pm

1 stop32h 35m

$557

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 12 results
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sofia-Boston flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Use this chart to determine the optimal time to book a round-trip flight from Sofia to Boston. Price data was last updated on April 11, 2025.

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 79 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, January is the cheapest month in which you can book a flight from Sofia to Boston (average of $218). Flying from Sofia to Boston in July is currently the most expensive (average of $311). 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?

Find hourly flight availability from Sofia 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 abril 17, 2025.

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?

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

Travelers seeking maximum savings on their Sofia to Boston flight should consider departing on Tuesday 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.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

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.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

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).

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 abril 17, 2025.
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.
Air France
7.5
Good
1,435 reviews
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.
SWISS
7.5
Good
1,580 reviews
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.
Qatar Airways
7.4
Good
3,554 reviews
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.
United Airlines
7.4
Good
8,667 reviews
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.
American Airlines
7.2
Good
10,000 reviews
Air France
7.5
Good
1,435 reviews

Boarding

7.4

Comfort

7.4

Overall

7.5

Food

7.0

Crew

8.2

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

SGN - CDG

Staff attentive, would have liked a covering on the seats for sleeping (as Vietnam airways did - and others) ‘duvet’ cover very light- needed but heavier. Food not great, scallop did not smell right, chicken over cooked.

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.

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

    British Airways, at $548, was found to be the cheapest airline from Sofia to Boston.Alternate airlines to your destination round-trip include Air France and United Airlines. British Airways is priced at 19% 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 Qatar Airways, with whom users have recently found tickets for as low as $557. However, be on the lookout for offers from Air Serbia and British Airways, 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, January is the cheapest month in which you can book a flight from Sofia to Boston (average of $218). Flying from Sofia to Boston in July is currently the most expensive (average of $311). 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 Sofia?

Book flights to Sofia if you plan to visit one of these locations
Marlborough
Warwick
Waltham
Framingham
Cambridge
Chestnut Hill
Seekonk
Randolph
Brockton
Lowell
Seabrook
West Yarmouth
Woburn
Somerville
Saco
Burlington
Smithfield
Lincoln
Salem
Chelsea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 abril 17, 2025.
Fort Myers to Boston flights
Valparaiso to Boston flights
New Orleans to Boston flights
Nashville to Boston flights
Tampa to Boston flights
Grand Rapids to Boston flights
Boston to Tampa flights
Boston to Fort Myers flights
Boston to Orlando Airport flights
Boston to Nashville flights
Boston to New Orleans flights
Boston to Fort Lauderdale flights
Boston to Baltimore flights
Boston to Valparaiso, Florida flights
Boston to Norfolk flights
Boston to Myrtle Beach flights
Boston to Miami flights
Boston to Des Moines flights
Boston to Presque Isle, Maine flights
Boston to Detroit Metropolitan Wayne County Airport flights
Boston to Chicago Midway Airport flights
Boston to Grand Rapids flights
Boston to Knoxville flights
Boston to Atlanta flights

Top 8 airlines flying from Sofia to Boston

Discover the top 8 airlines that operate flights from Sofia 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 abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$500Average$639FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$520Average$667FlexibilityNo cancel feeOn-time77%
KLMCheapest$520Average$685FlexibilityNo cancel feeOn-time75%
SWISSCheapest$525Average$727FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$538Average$637FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$567Average$684FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$573Average$713FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$574Average$712FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.