Sofia

$169+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
Feb 7 — Feb 141
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Cheap 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 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$338
(Kiwi.com)

One-way from

$169
(Trip.com)

Popular in

December

Cheapest in

November

Average price

$652
Provider with most accurate pricing for New York (NYC)-Sofia flight deals.
Provider most trusted by Cheapflights users for New York (NYC)-Sofia flights.
From USA to Sofia
One-way flight from USA to Sofia
Highest demand for flights based on searches. 2% potential increase in price ($17 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in January 2026

Find 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 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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 2/42:20 pmBOS - SOF
2 stops15h 55mLufthansa
Wed 2/112:00 pmSOF - BOS
1 stop11h 35mLufthansa
Deal found 1/7$338
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/32:20 pmBOS - SOF
2 stops15h 55mLufthansa
Tue 2/102:00 pmSOF - BOS
1 stop11h 35mLufthansa
Deal found 1/6$340
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/16:40 pmEWR - SOF
1 stop12h 35mMultiple Airlines
Mon 2/96:45 pmSOF - EWR
1 stop26h 10mMultiple Airlines
Deal found 1/6$340
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 1/265:00 pmEWR - SOF
1 stop13h 15mMultiple Airlines
Tue 2/107:55 amSOF - EWR
1 stop13h 00mMultiple Airlines
Deal found 1/6$352
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/38:50 pmEWR - SOF
1 stop14h 30mMultiple Airlines
Tue 2/177:55 amSOF - EWR
1 stop13h 00mMultiple Airlines
Deal found 1/6$353
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 1/288:40 pmBOS - SOF
1 stop14h 40mLufthansa
Wed 2/112:00 pmSOF - BOS
1 stop11h 35mLufthansa
Deal found 1/6$354
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 3/36:25 pmBOS - SOF
1 stop10h 25mAustrian Airlines
Tue 3/177:55 amSOF - BOS
1 stop13h 10mAustrian Airlines
Deal found 1/8$355
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/255:55 pmEWR - SOF
1 stop10h 55mAustrian Airlines
Mon 2/96:45 pmSOF - EWR
1 stop26h 10mAustrian Airlines
Deal found 1/7$355
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 4/75:10 pmBOS - SOF
1 stop11h 30mAustrian Airlines
Tue 4/216:55 pmSOF - BOS
1 stop25h 55mAustrian Airlines
Deal found 1/6$357
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 1/285:55 pmEWR - SOF
1 stop10h 55mAustrian Airlines
Mon 2/96:45 pmSOF - EWR
1 stop26h 10mAustrian Airlines
Deal found 1/6$357
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/185:55 pmEWR - SOF
1 stop10h 55mAustrian Airlines
Mon 2/26:45 pmSOF - EWR
1 stop26h 10mAustrian Airlines
Deal found 1/7$358
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 2/165:55 pmEWR - SOF
1 stop23h 00mAustrian Airlines
Mon 2/2312:35 pmSOF - EWR
1 stop32h 20mAustrian Airlines
Deal found 1/7$361

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 8, 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 3/3

6:25 pm-11:50 am

1 stop10h 25m

Sofia

Tue 3/17

7:55 am-3:05 pm

1 stop13h 10m

$355

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 3/3

4:35 pm-6:20 pm

2 stops18h 45m

Sofia

Tue 3/17

7:55 am-3:05 pm

1 stop13h 10m

$381

NewarkSofia

EWR - SOF

EWRSOF

Newark

Sun 2/1

5:00 pm-1:00 pm

1 stop13h 00m

Sofia

Fri 2/13

7:55 am-1:55 pm

1 stop13h 00m

$394

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 1/26

8:50 pm-10:45 pm

1 stop18h 55m

Sofia

Thu 2/12

7:55 am-1:55 pm

1 stop13h 00m

$394

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 1/27

8:50 pm-6:20 pm

1 stop14h 30m

Sofia

Thu 2/12

7:55 am-1:55 pm

1 stop13h 00m

$394

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 1/27

5:00 pm-6:20 pm

1 stop18h 20m

Sofia

Fri 2/13

7:55 am-1:55 pm

1 stop13h 00m

$394

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 4/19

10:45 am-12:10 pm

2 stops18h 25m

Sofia

Fri 5/8

6:10 am-5:40 pm

1 stop18h 30m

$405

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 1/27

7:10 pm-2:05 pm

1 stop11h 55m

Sofia

Tue 2/3

7:10 am-1:40 pm

1 stop13h 30m

$410

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/3

7:10 pm-2:05 pm

1 stop11h 55m

Sofia

Tue 2/10

7:10 am-1:40 pm

1 stop13h 30m

$410

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 2/2

1:30 pm-11:55 pm

2 stops27h 25m

Sofia

Mon 2/9

1:45 pm-8:20 pm

2 stops37h 35m

$411

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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
Airlines
Turkish Airlines

Turkish Airlines Economy offers a travel set with sleep mask, ear plugs, and toiletries on flights over five hours.


Turkish Airlines Business Class features lie-flat seats, Ferragamo travel sets, and Denon noise-canceling headphones.

United Airlines

United's Polaris Business Class offers lie-flat seats, Saks Fifth Avenue bedding, and upscale amenity kits.


United's Premium Plus offers extra legroom, upgraded meals, and two checked bags on international routes.

Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Turkish Airlines

Jessica Macdonald

Jessica Macdonald

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 Baskas

Harriet Baskas

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 8, 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.

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Boarding

7.8

Crew

8.4

Food

7.2

Entertainment

7.1

Comfort

7.6

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 $355, Austrian Airlines can have you in Sofia from USA in 10h 25m. 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 Air Serbia, with whom users have recently found tickets for as low as $227. However, be on the lookout for offers from Air France and Turkish Airlines, 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?

  • 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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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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$356Average$787FlexibilityNo cancel feeOn-time70%
KLMCheapest$380Average$745FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$394Average$805FlexibilityNo cancel feeOn-time78%
SWISSCheapest$401Average$827FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$416Average$684FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$422Average$846FlexibilityNo cancel feeOn-time69%
LOTCheapest$437Average$861FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$446Average$897FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$478Average$984FlexibilityNo cancel feeOn-time62%
ITA AirwaysCheapest$505Average$1,062FlexibilityNo cancel feeOn-time81%

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