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$278+ Cheap flights from Boston (BOS) to Sofia (SOF)

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOF
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Boston Logan Intl to Sofia are usually found in October or November, booked 62 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Sofia (SOF). 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 November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

October

Round-trip from

$521
(Air France)

One-way from

$490
(KLM)
Provider with most accurate pricing for Boston Logan Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Sofia flights.
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 30% potential price drop
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From Boston Logan Intl to Sofia
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One-way flight from Boston Logan Intl to Sofia
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Find flight deals from Boston to Sofia

Cheapest flights from Boston to Sofia
Explore the most affordable flight options available from Boston to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/38:00 pmBOS - SOF
1 stop29h 55mTurkish Airlines
Tue 12/109:40 pmSOF - BOS
1 stop27h 25mTurkish Airlines
Deal found 11/18$573
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:10 amBOS - SOF
2 stops31h 50mMultiple Airlines
Tue 12/244:00 pmSOF - BOS
3 stops35h 20mMultiple Airlines
Deal found 11/19$598
This Ovago deal was found by Cheapflights users on 11/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:30 amBOS - SOF
1 stop23h 40mBritish Airways
Tue 12/246:05 pmSOF - BOS
1 stop26h 55mBritish Airways
Deal found 11/19$694
This Air Canada deal was found by Cheapflights users on 11/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/33:40 pmBOS - SOF
2 stops14h 50mAir Canada
Wed 12/116:00 amSOF - BOS
2 stops15h 55mAir Canada
Deal found 11/18$699
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/246:25 pmBOS - SOF
1 stop10h 25mAustrian Airlines
Mon 12/96:45 pmSOF - BOS
2 stops29h 45mAustrian Airlines
Deal found 11/20$742
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/24:15 pmBOS - SOF
1 stop14h 20mUnited Airlines
Tue 1/286:00 amSOF - BOS
2 stops35h 08mUnited Airlines
Deal found 11/19$756
This Lufthansa deal was found by Cheapflights users on 11/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/48:40 pmBOS - SOF
1 stop14h 30mLufthansa
Tue 12/106:00 amSOF - BOS
1 stop14h 25mLufthansa
Deal found 11/18$766
This KLM deal was found by Cheapflights users on 11/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/31:58 pmBOS - SOF
2 stops17h 07mKLM
Thu 12/197:00 amSOF - BOS
1 stop13h 30mKLM
Deal found 11/20$778
This Aeromexico deal was found by Cheapflights users on 11/19. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/34:55 pmBOS - SOF
2 stops38h 10mAir France
Thu 12/197:10 amSOF - BOS
2 stops24h 38mAir France
Deal found 11/19$811

Find flights from Boston to Sofia within your budget

Customize your flight search to find flights from Boston to Sofia 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 2,629,791 searches. Data last updated November 20, 2024.

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Fly to

Any airport

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/11

6:45 pm-1:55 pm

1 stop12h 10m

Sofia

Tue 2/25

7:00 am-1:35 pm

1 stop13h 35m

$521

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/17

6:25 pm-5:10 pm

1 stop15h 45m

Sofia

Mon 3/3

5:25 pm-6:58 pm

2 stops32h 33m

$522

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 1/7

6:10 am-6:10 pm

2 stops29h 00m

Sofia

Tue 1/28

6:00 am-8:03 pm

3 stops21h 03m

$523

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Fri 2/21

8:00 pm-8:55 am

1 stop29h 55m

Sofia

Fri 3/7

9:45 am-6:05 pm

1 stop15h 20m

$529

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 1/13

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Mon 1/27

1:45 pm-8:20 pm

2 stops37h 35m

$542

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Fri 1/10

6:25 pm-3:30 pm

1 stop14h 05m

Sofia

Sun 1/19

8:00 am-2:10 pm

1 stop13h 10m

$604

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 12/4

1:58 pm-2:05 pm

2 stops17h 07m

Sofia

Wed 12/11

7:00 am-1:30 pm

1 stop13h 30m

$721

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/22

6:10 pm-10:35 pm

2 stops21h 25m

Sofia

Tue 5/6

6:40 pm-8:05 pm

2 stops32h 25m

$736

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 12/4

8:40 pm-6:10 pm

1 stop14h 30m

Sofia

Tue 12/10

6:00 am-1:25 pm

1 stop14h 25m

$766

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 12/3

4:55 pm-2:05 pm

2 stops38h 10m

Sofia

Thu 12/19

7:10 am-12:48 am

2 stops24h 38m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 15 results
1
2

Compare providers for flights from Boston to Sofia

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 Boston to Sofia in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy2 starsTrust 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 Boston-Sofia flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Sofia flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Boston-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Sofia flights, Cheapflights users trust AranGrant the most. AranGrant 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 Boston-Sofia 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 Boston to Sofia

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

Travel insights for flights from Boston to Sofia

Get recent, data-driven insights about flights from Boston to Sofia including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Sofia. Price data was last updated on November 15, 2024.

The best time to book flights from Boston to Sofia is 62 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.

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

Currently, November is the cheapest month in which you can book a flight from Boston to Sofia (average of $606). Flying from Boston to Sofia in June is currently the most expensive (average of $1,242). 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 BOS to SOF?

Find hourly flight availability from Boston to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from Boston to Sofia, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 28% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Sofia. Price data was last updated on November 18, 2024.

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

Rainfall in Sofia by month

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

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

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

If weather is an important factor for your trip to Sofia, 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 68.0 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 Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated November 20, 2024.
Get a feel of what it's like to fly with Air Canada and British Airways from Boston to Sofia by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Austrian Airlines
7.6
Good
805 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Air France
7.4
Good
1,523 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Turkish Airlines
7.4
Good
3,915 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

United Airlines
7.4
Good
9,171 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Comfort

7.7

Overall

7.8

Food

7.3

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

Find useful and relevant information for your journey from Boston to Sofia. 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 Boston to Sofia round-trip?

    British Airways, at $522, was found to be the cheapest airline from Boston to Sofia.Alternate airlines to your destination round-trip include Air Canada and Turkish Airlines. British Airways is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $490 on KLM. Other airlines that offer cheap prices include British Airways from $537 and United Airlines from $540 one-way.

  • Where are the most common layover locations when flying from Boston to Sofia?

    Flights departing from Boston and landing in Sofia layover in Frankfurt am Main most frequently.

  • What are some popular things to do or see while on a layover in Frankfurt am Main?

    Most Frankfurt am Main visitors opt to spend their time experiencing Römerberg, Hauptwache, and Römer. Travelers on a layover in Frankfurt am Main can visit Römerberg, Hauptwache, and Römer, by traveling 7.4 mi, 7.4 mi, and 7.4 mi, respectively after landing at Frankfurt am Main. Those looking to explore during their layover in Frankfurt am Main can rent a car from Frankfurt am Main for about $39 per day.

  • Where are the least popular layover locations for Boston to Sofia flights?

    The least popular layover on flights from Boston to Sofia is Munich.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Sofia 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 Boston to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Boston to Sofia (average of $606). Flying from Boston to Sofia in June is currently the most expensive (average of $1,242). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Hartford to Sofia flights

Top 8 airlines flying from Boston to Sofia

Discover the top 8 airlines that operate flights from Boston to Sofia. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$529Average$613FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$546Average$1,004FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$548Average$792FlexibilityNo cancel feeOn-time70%
SWISSCheapest$558Average$912FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$610Average$994FlexibilityNo cancel feeOn-time76%
KLMCheapest$623Average$919FlexibilityNo cancel feeOn-time75%
ITA AirwaysCheapest$742Average$873FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$789Average$987FlexibilityNo cancel feeOn-time78%
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