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Sofia

$193+ Cheap flights from the United States 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from USA to Sofia

Cheapest flights from USA to Sofia
Explore the most affordable flight options available from USA to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/236:55 pm
EWR
-
SOF
1 stop17h 05m
Multiple Airlines
Wed 4/1511:05 am
SOF
-
EWR
1 stop16h 10m
Multiple Airlines
Deal found 2/10$345
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/38:50 pm
EWR
-
SOF
1 stop18h 55m
Multiple Airlines
Tue 3/177:55 am
SOF
-
EWR
1 stop13h 20m
Multiple Airlines
Deal found 2/9$352
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/236:55 pm
EWR
-
SOF
1 stop10h 55m
Austrian Airlines
Wed 4/158:00 am
SOF
-
EWR
1 stop12h 55m
Austrian Airlines
Deal found 2/9$356
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Sun 4/58:05 pm
BOS
-
SOF
1 stop19h 55m
Multiple Airlines
Mon 4/203:40 pm
SOF
-
BOS
1 stop30h 30m
Multiple Airlines
Deal found 2/11$362
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Wed 3/48:40 pm
BOS
-
SOF
1 stop19h 05m
Lufthansa
Wed 3/186:10 am
SOF
-
BOS
1 stop14h 00m
Lufthansa
Deal found 2/10$363
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 4/58:05 pm
BOS
-
SOF
1 stop19h 55m
Lufthansa
Mon 4/207:25 pm
SOF
-
BOS
1 stop29h 15m
Lufthansa
Deal found 2/10$366
This Kiwi.com deal was found by Cheapflights users on 2/9. 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.
Sun 4/59:40 pm
BOS
-
SOF
1 stop31h 35m
SWISS
Mon 4/203:45 pm
SOF
-
BOS
1 stop30h 25m
SWISS
Deal found 2/9$370
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Wed 3/48:40 pm
BOS
-
SOF
1 stop19h 05m
Multiple Airlines
Wed 3/182:00 pm
SOF
-
BOS
2 stops25h 32m
Multiple Airlines
Deal found 2/10$371
This Mytrip deal was found by Cheapflights users on 2/9. 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.
Wed 4/12:30 pm
EWR
-
SOF
2 stops14h 40m
Multiple Airlines
Wed 4/158:00 am
SOF
-
EWR
1 stop12h 55m
Multiple Airlines
Deal found 2/9$371
This Mytrip deal was found by Cheapflights users on 2/11. 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.
Mon 3/236:40 pm
BOS
-
SOF
2 stops12h 35m
Multiple Airlines
Wed 4/1512:55 pm
SOF
-
BOS
1 stop11h 45m
Multiple Airlines
Deal found 2/11$377
This Mytrip deal was found by Cheapflights users on 2/10. 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.
Wed 3/43:30 pm
EWR
-
SOF
2 stops24h 15m
Multiple Airlines
Wed 3/182:00 pm
SOF
-
EWR
2 stops30h 47m
Multiple Airlines
Deal found 2/10$377
This FlightHub deal was found by Cheapflights users on 2/9. 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.
Wed 4/15:20 pm
BOS
-
SOF
1 stop10h 00m
SWISS
Wed 4/1511:05 am
SOF
-
BOS
1 stop15h 50m
SWISS
Deal found 2/9$379

Find flight deals from USA to Sofia

Keep the following information in mind while searching for USA to Sofia flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$345
(Kiwi.com)

One-way from

$193
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$559
Provider with most accurate pricing for New York (NYC)-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Sofia flights.
Search Deals
From USA to Sofia
Search Deals
One-way flight from USA to Sofia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 2,558,603 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from the United States to Sofia that are best for you.

Fly from

USA

Fly to

Sofia

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/14

9:40 pm-10:20 am

1 stop29h 40m

Sofia

Tue 5/12

1:05 pm-3:10 pm

1 stop33h 05m

$392

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/21

8:05 pm-11:10 pm

1 stop20h 05m

Sofia

Wed 5/6

8:00 am-1:50 pm

1 stop12h 50m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 4/26

8:05 pm-11:10 pm

1 stop20h 05m

Sofia

Wed 5/13

6:10 am-5:40 pm

1 stop18h 30m

$397

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 4/22

2:37 pm-12:10 pm

2 stops14h 33m

Sofia

Tue 5/12

6:10 am-5:40 pm

1 stop18h 30m

$402

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 4/27

7:30 pm-11:10 pm

2 stops20h 40m

Sofia

Wed 5/13

6:10 am-5:40 pm

1 stop18h 30m

$402

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/28

7:30 pm-11:10 pm

2 stops20h 40m

Sofia

Tue 5/12

12:55 pm-5:40 pm

1 stop11h 45m

$402

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/21

8:05 pm-11:10 pm

1 stop20h 05m

Sofia

Tue 5/5

6:10 am-5:59 pm

2 stops18h 49m

$405

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/14

1:00 pm-12:10 pm

2 stops16h 10m

Sofia

Tue 5/12

6:10 am-5:40 pm

1 stop18h 30m

$405

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 4/28

7:30 pm-11:10 pm

2 stops20h 40m

Sofia

Wed 5/13

6:10 am-6:11 pm

2 stops19h 01m

$412

NewarkSofia

EWR - SOF

EWRSOF

Newark

Sun 3/29

7:15 pm-6:10 pm

1 stop15h 55m

Sofia

Wed 4/8

8:00 am-1:55 pm

1 stop12h 55m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 60 results
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Best time to book a flight from USA to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from USA 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 the United States to Sofia

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

Currently, October is the cheapest month in which you can book a flight from USA to Sofia (average of $223). Flying from USA to Sofia in May is currently the most expensive (average of $574). 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.

The best insider tips for theUnited States to Sofia flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Sofia trip
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Turkish Airlines

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 February 11, 2026.
Peruse reviews from past customers who have flown with KLM, Austrian Airlines, and United Airlines from the United States to Sofia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,451 reviews
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Austrian Airlines
7.5
Good
896 reviews
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,281 reviews
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.3
Good
4,208 reviews
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,780 reviews
KLM
7.7
Good
1,451 reviews

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Food

7.3

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from USA to Sofia. 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 Sofia from United States?

    Located just 4.2 mi from the city center, Sofia (SOF) is the airport most travelers will use when flying to Sofia from United States.

  • How long is the flight from USA to Sofia?

    For as low as $467, SWISS can have you in Sofia from USA in 14h 40m. Airlines will cover a distance of 4705 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Lufthansa, with whom users have recently found tickets for as low as $222. However, be on the lookout for offers from Austrian Airlines and KLM, as they are both options that can get you from USA to Sofia for a low price.

  • What are the most popular routes from USA to Sofia?

    The most popular flight routes from USA to Sofia are Chicago O'Hare Intl - Sofia, New York John F Kennedy Intl - Sofia and Los Angeles - Sofia.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from USA to Sofia (average of $223). Flying from USA to Sofia in May is currently the most expensive (average of $574). 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

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

Top 10 airlines flying from USA to Sofia

Discover the top 10 airlines that operate flights from USA 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 2,558,603 searches. Data last updated February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$356Average$780FlexibilityNo cancel feeOn-time70%
KLMCheapest$380Average$693FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$394Average$795FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$396Average$670FlexibilityNo cancel feeOn-time77%
SWISSCheapest$401Average$816FlexibilityNo cancel feeOn-time79%
LOTCheapest$413Average$774FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$417Average$829FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$435Average$865FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$478Average$984FlexibilityNo cancel feeOn-time62%
ITA AirwaysCheapest$505Average$986FlexibilityNo cancel feeOn-time81%

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