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Sofia

$181+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/29. 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 2/178:40 pm
BOS
-
SOF
1 stop14h 40m
Multiple Airlines
Fri 3/67:55 am
SOF
-
BOS
1 stop13h 10m
Multiple Airlines
Deal found 1/29$353
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 3/239:50 pm
EWR
-
SOF
1 stop14h 30m
Multiple Airlines
Wed 4/158:00 am
SOF
-
EWR
1 stop12h 55m
Multiple Airlines
Deal found 1/29$353
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/185:55 pm
EWR
-
SOF
1 stop10h 55m
Austrian Airlines
Wed 3/47:55 am
SOF
-
EWR
1 stop13h 20m
Austrian Airlines
Deal found 1/27$355
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/225:55 pm
EWR
-
SOF
1 stop10h 55m
Austrian Airlines
Mon 3/96:45 pm
SOF
-
EWR
1 stop26h 30m
Austrian Airlines
Deal found 1/28$356
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/188:40 pm
BOS
-
SOF
1 stop14h 40m
Lufthansa
Wed 3/42:00 pm
SOF
-
BOS
1 stop11h 35m
Lufthansa
Deal found 1/27$360
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 4/209:45 pm
EWR
-
SOF
1 stop29h 35m
Multiple Airlines
Wed 4/298:00 am
SOF
-
EWR
1 stop12h 55m
Multiple Airlines
Deal found 1/27$361
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/259:50 pm
BOS
-
SOF
1 stop10h 25m
Multiple Airlines
Wed 3/42:00 pm
SOF
-
BOS
1 stop11h 35m
Multiple Airlines
Deal found 1/28$363
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/237:34 pm
BOS
-
SOF
2 stops16h 46m
Lufthansa
Mon 4/67:00 pm
SOF
-
BOS
1 stop27h 40m
Lufthansa
Deal found 1/28$369
This Mytrip deal was found by Cheapflights users on 1/27. 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 2/1810:30 am
EWR
-
SOF
2 stops24h 50m
Multiple Airlines
Wed 3/47:55 am
SOF
-
EWR
1 stop13h 20m
Multiple Airlines
Deal found 1/27$373
This Mytrip deal was found by Cheapflights users on 1/27. 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 2/188:40 pm
BOS
-
SOF
1 stop14h 40m
Multiple Airlines
Wed 3/47:55 am
SOF
-
BOS
2 stops18h 17m
Multiple Airlines
Deal found 1/27$374
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Sun 4/262:30 pm
EWR
-
SOF
2 stops14h 40m
Multiple Airlines
Thu 5/712:55 pm
SOF
-
EWR
1 stop12h 50m
Multiple Airlines
Deal found 1/28$376
This Mytrip deal was found by Cheapflights users on 1/27. 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 4/2810:45 am
BOS
-
SOF
2 stops18h 25m
Multiple Airlines
Tue 5/126:55 pm
SOF
-
BOS
1 stop25h 55m
Multiple Airlines
Deal found 1/27$377

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(Kiwi.com)

One-way from

$181
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$598
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 ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 29, 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 2/17

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Tue 3/3

7:55 am-2:05 pm

1 stop13h 10m

$353

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/16

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Fri 3/6

7:55 am-2:05 pm

1 stop13h 10m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 2/18

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Tue 3/3

7:55 am-2:05 pm

1 stop13h 10m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/24

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Tue 3/3

7:55 am-2:05 pm

1 stop13h 10m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 2/18

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Fri 3/6

7:55 am-2:05 pm

1 stop13h 10m

$395

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 5/3

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 2/18

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Wed 3/4

6:05 am-6:35 pm

1 stop19h 30m

$398

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/17

11:51 am-1:15 pm

2 stops18h 24m

Sofia

Tue 3/3

7:55 am-2:05 pm

1 stop13h 10m

$400

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/17

11:51 am-1:15 pm

2 stops18h 24m

Sofia

Wed 3/4

6:05 am-6:35 pm

1 stop19h 30m

$402

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/17

11:51 am-1:15 pm

2 stops18h 24m

Sofia

Thu 3/5

6:05 am-6:35 pm

1 stop19h 30m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 $243). 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 January 29, 2026.
Peruse reviews from past customers who have flown with KLM, LOT, 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
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

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
1,443 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
LOT
7.5
Good
1,174 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

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
9,215 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

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
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

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
7,756 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Boarding

7.8

Comfort

7.6

Crew

8.4

Entertainment

7.1

Overall

7.7

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 $395, United Airlines can have you in Sofia from USA in 19h 05m. Airlines will cover a distance of 4521 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 New York John F Kennedy Intl - Sofia, Chicago O'Hare Intl - Sofia and Newark - 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 $243). 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

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Alternative routes for USA to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Sofia flights
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$356Average$781FlexibilityNo cancel feeOn-time70%
KLMCheapest$380Average$715FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$394Average$796FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$396Average$684FlexibilityNo cancel feeOn-time77%
SWISSCheapest$401Average$820FlexibilityNo cancel feeOn-time79%
LOTCheapest$413Average$774FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$422Average$834FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$436Average$875FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$478Average$984FlexibilityNo cancel feeOn-time62%
ITA AirwaysCheapest$505Average$1,015FlexibilityNo cancel feeOn-time81%

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