Cheap flights from Boston (BOS) to Sofia (SOF) from $233

This is the cheapest one-way flight price, found on 12/7. Prices may vary by date and flight preferences.
BOS — SOF
Dec 12 — Dec 191

The best prices from Boston Logan Intl to Sofia are usually found in February or January, booked 15 days in advance, depart on a Sunday or Tuesday and return on a Thursday

How to find the cheapest flight from Boston (BOS) to Sofia (SOF)

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 December 7, 2023.

Popular in

June

Cheapest in

February

Round-trip from

$558

One-way from

$542
High demand for flights, 39% potential price rise
Best time to find cheap flights, 41% potential price drop
From Boston Logan Intl to Sofia
One-way flight from Boston Logan Intl to Sofia

What is the cheapest day to fly round-trip from Boston to Sofia?

Friday flights are found to be more expensive to fly from Boston to Sofia. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sofia.

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

Travelers have found it’s best to book a flight 16 days in advance to save up to 18% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 16 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Boston to Sofia 1-2 weeks in advance for as low as $651, or $956 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Sofia. Flights to Sofia from Boston in February are about $901 on average during February, but can be found for as low as $475.

When is the cheapest time to fly from Boston to Sofia (BOS - SOF)?

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 in the morning, which can drop the price by up to 26% versus a flight in the afternoon.

Cheap British Airways flights from Boston to Sofia

Explore cheap flight options specifically provided by British Airways for the route between Boston and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Take a look at some of the lowest-priced British Airways flights heading from Boston to Sofia. Make sure to double check the flight details before booking.

Cheap SWISS flights from Boston to Sofia

Explore cheap flight options specifically provided by SWISS for the route between Boston and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Some of the lowest-priced SWISS flights we've found at this time heading from Boston to Sofia. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Boston to Sofia flights in December & January 2023

Find cheap flight options from Boston to Sofia specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Prices were last updated on December 7, 2023.
The lowest fares we've come across on flights traveling from Boston to Sofia in December and January 2023. If these deals don't appeal to you, be sure to come back soon for more options.

Boston to Sofia 2023 flight deals

Discover exclusive flight deals for travel between Boston and Sofia in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
The lowest fares we've come across on flights traveling from Boston to Sofia in December and January 2023. If these deals don't appeal to you, be sure to come back soon for more options.

One-way flights to Sofia from Boston

Search for one-way flight options from Boston to Sofia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,618,515 searches. Data last updated December 7, 2023.
Users traveling one-way from Boston to Sofia can select one of these great deals. For those needing a return trip from Boston, there is a search form available above.

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 2,618,515 searches. Data last updated December 7, 2023.

Fly from

Any airport

Fly to

Any airport

Budget

$594 - $817

Route

Depart

Return

Price

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Thu 1/25

2 stops29h 20m

Sofia

Thu 2/8

1 stop15h 20m

$594

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sat 1/20

1 stop20h 10m

Sofia

Tue 1/30

2 stops22h 40m

$604

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/5

1 stop17h 10m

Sofia

Wed 2/21

1 stop26h 55m

$617

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 1/29

1 stop27h 50m

Sofia

Mon 2/12

1 stop15h 35m

$620

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/4

1 stop10h 50m

Sofia

Mon 2/19

1 stop34h 45m

$627

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/4

1 stop14h 50m

Sofia

Tue 2/20

1 stop11h 50m

$630

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/4

2 stops20h 55m

Sofia

Thu 2/22

1 stop13h 50m

$644

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/4

2 stops14h 40m

Sofia

Thu 2/22

2 stops15h 03m

$650

Boston Logan IntlSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/4

2 stops30h 05m

Sofia

Wed 2/21

2 stops26h 35m

$817

Flights are sorted by cheapest first

Deals found on 12/5

Average price of flights to Sofia by month

Plan your trip from Boston to Sofia by taking into account the cheapest months to travel. The average price of a one-way flight from Boston to Sofia is currently 298.78 USD while a round-trip flight costs 644.78 USD. Price data was last updated on December 3, 2023.

Currently, January is the cheapest month in which you can book a flight from Boston to Sofia (average of $558). Flying from Boston to Sofia in June is currently the most expensive (average of $1,381). 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.

January

$558

February

$602

March

$708

April

$767

May

$862

June

$1,381

July

$1,277

August

$964

September

$776

October

$705

November

$662

December

$704

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 December 7, 2023.
Get a feel of what it's like to fly with British Airways, SWISS and Lufthansa 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.
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

7.6
Good
276 reviews
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

7.5
Good
353 reviews
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

7.4
Good
457 reviews
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

7.4
Good
1,902 reviews
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

7.3
Good
1,849 reviews
7.6
Good
276 reviews

Boarding

7.6

Food

7.0

Crew

8.3

Entertainment

7.2

Overall

7.6

Comfort

7.4

Reviews

1 / 10

There was no WiFi connection all through the 6-hour flight even though we were made to believe there will be when purchasing the tickets. Also there was no toilet around the Premium seats. One had to walk all the way back to the main economy cabin to use toilets. Why pay so much more for premium when you will be made to use main economy rest room facilities?

Average temperature in Sofia by month

Plan your trip to Sofia by selecting the month that matches your preferred temperature. July sees the highest average temperature while January sees the lowest average temperature. Temperature data was last updated on December 3, 2023.

SOF

Temperature

30.2 - 68 °F

Average rainfall in Sofia by month

Keep in mind the precipitation totals in Sofia when planning your trip. Sofia sees an average of 1.73 precipitation per year with the most occurring in June. Precipitation data was last updated on December 3, 2023.

SOF

Rainfall

1.2 - 2.8 inches

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.

Can I find flights from Boston to Sofia for under $600 on Cheapflights?

Yes, there are multiple flights from Boston to Sofia for under $600. The cheapest flight booked recently is on Multiple Airlines for just $594, but on average you can expect to pay $631.

How popular is this Boston to Sofia flight route?

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

British Airways, at $617, was found to be the cheapest airline from Boston to Sofia.Alternate airlines to your destination round-trip include Turkish Airlines and SWISS. British Airways is 31% cheaper than the average price of flights available within the next 90 days to this destination.

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

What does BOS to SOF mean?

This is defined as Boston Logan Intl Airport (BOS) and Sofia Airport (SOF). Codes like Sofia Airport are often used to just call airports uniquely.

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Boston to Sofia

Discover the top 10 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 2,618,515 searches. Data last updated December 7, 2023.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$510Average$604FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest$512Average$699FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapest$522Average$664FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest$527Average$1,117FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest$536Average$946FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest$539Average$1,161FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Turkish AirlinesCheapest$594Average$848FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
Alaska AirlinesCheapest$758Average$880FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
ITA AirwaysCheapest$797Average$919FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights
SWISSCheapest$818Average$1,276FlexibilityNo cancel feeOn-time79%
Search SWISS flights

Search flights to Sofia by cabin class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Sofia?

Cheapflights helps you search for flights from Boston to Sofia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Boston to Sofia?

Cheapflights helps you find that perfect flight to Sofia from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Sofia with no change fees?

Yes! Cheapflights helps users easily find flights from Boston to Sofia with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Sofia become cheaper?

Yes! Start tracking prices for Boston to Sofia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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