HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sofia

$204+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SOF
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from USA to Sofia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/22. 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 3/179:40 pm
BOS
-
SOF
1 stop14h 40m
Multiple Airlines
Tue 3/247:55 am
SOF
-
BOS
1 stop13h 10m
Multiple Airlines
Deal found 1/22$350
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:25 pm
BOS
-
SOF
1 stop10h 25m
Austrian Airlines
Wed 4/18:00 am
SOF
-
BOS
1 stop12h 50m
Austrian Airlines
Deal found 1/20$356
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/95:55 pm
EWR
-
SOF
1 stop17h 05m
Austrian Airlines
Mon 2/166:45 pm
SOF
-
EWR
1 stop26h 30m
Austrian Airlines
Deal found 1/20$356
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/85:55 pm
EWR
-
SOF
1 stop10h 55m
Austrian Airlines
Mon 2/166:45 pm
SOF
-
EWR
1 stop26h 30m
Austrian Airlines
Deal found 1/20$358
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:50 pm
EWR
-
SOF
1 stop14h 30m
Lufthansa
Wed 3/252:00 pm
SOF
-
EWR
1 stop12h 05m
Lufthansa
Deal found 1/20$359
This Mytrip deal was found by Cheapflights users on 1/22. 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 2/910:30 am
EWR
-
SOF
2 stops19h 45m
Multiple Airlines
Mon 2/166:45 pm
SOF
-
EWR
1 stop26h 30m
Multiple Airlines
Deal found 1/22$368
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:40 pm
BOS
-
SOF
2 stops14h 20m
Multiple Airlines
Wed 4/18:00 am
SOF
-
BOS
1 stop12h 50m
Multiple Airlines
Deal found 1/20$370
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2710:30 am
EWR
-
SOF
2 stops18h 20m
Multiple Airlines
Wed 2/117:55 am
SOF
-
EWR
1 stop13h 20m
Multiple Airlines
Deal found 1/20$372
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:40 pm
BOS
-
SOF
2 stops14h 20m
Lufthansa
Wed 4/112:55 pm
SOF
-
BOS
1 stop11h 45m
Lufthansa
Deal found 1/20$373
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/810:10 pm
BOS
-
SOF
2 stops13h 10m
Multiple Airlines
Mon 2/166:45 pm
SOF
-
BOS
1 stop26h 20m
Multiple Airlines
Deal found 1/20$374
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2810:30 am
EWR
-
SOF
2 stops24h 50m
Multiple Airlines
Mon 2/96:45 pm
SOF
-
EWR
1 stop26h 30m
Multiple Airlines
Deal found 1/20$375
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:15 am
BOS
-
SOF
2 stops22h 55m
Multiple Airlines
Tue 4/281:05 pm
SOF
-
BOS
1 stop13h 50m
Multiple Airlines
Deal found 1/20$378

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 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$350
(Kiwi.com)

One-way from

$204
(Iberia)

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 ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% 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 22, 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

Sun 4/19

6:15 am-12:10 pm

2 stops22h 55m

Sofia

Wed 4/29

12:55 pm-10:38 pm

2 stops16h 43m

$386

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/8

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Tue 2/17

7:55 am-2:05 pm

1 stop13h 10m

$393

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/8

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Fri 2/20

7:55 am-2:05 pm

1 stop13h 10m

$393

NewarkSofia

EWR - SOF

EWRSOF

Newark

Sun 2/8

8:50 pm-6:20 pm

1 stop14h 30m

Sofia

Thu 2/19

7:55 am-1:55 pm

1 stop13h 00m

$393

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 2/4

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Thu 2/19

6:05 am-6:35 pm

1 stop19h 30m

$396

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 2/4

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Wed 2/18

6:05 am-6:35 pm

1 stop19h 30m

$396

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 2/8

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Thu 2/19

6:05 am-6:35 pm

1 stop19h 30m

$396

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/3

9:30 am-1:15 pm

2 stops20h 45m

Sofia

Tue 2/17

7:55 am-2:05 pm

1 stop13h 10m

$398

NewarkSofia

EWR - SOF

EWRSOF

Newark

Sun 3/1

5:55 pm-11:50 am

1 stop10h 55m

Sofia

Sun 3/8

7:55 am-2:15 pm

1 stop13h 20m

$447

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Sun 4/26

8:35 am-12:10 pm

2 stops20h 35m

Sofia

Mon 5/4

6:10 am-9:26 pm

2 stops22h 16m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 60 results
1
2
3
...
6

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 22, 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
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
1,442 reviews
KLM
7.7
Good
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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.
LOT
7.5
Good
1,174 reviews
KLM
7.7
Good
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
9,190 reviews
KLM
7.7
Good
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
4,200 reviews
KLM
7.7
Good
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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
7,738 reviews
KLM
7.7
Good
1,442 reviews

Crew

8.4

Food

7.3

Comfort

7.6

Entertainment

7.1

Overall

7.7

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 $461, United Airlines can have you in Sofia from USA in 13h 50m. Airlines will cover a distance of 4707 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 KLM and Air Serbia, 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

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

Alternative routes for USA to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Sofia flights
John F Kennedy Intl to Sofia flights
Newark to Sofia flights
LaGuardia to Sofia flights
Boston to Sofia flights
Dallas/Fort Worth to Sofia flights
Los Angeles to Sofia flights
Midway to Sofia flights
Seattle to Sofia flights
Dulles Intl to Sofia flights
Sky Harbor Intl to Sofia flights
Miami to Sofia flights
Minneapolis to Sofia flights
San Francisco to Sofia flights
Charlotte to Sofia flights
Denver to Sofia flights
Las Vegas to Sofia flights
Orlando to Sofia flights
Reagan-National to Sofia flights
Atlanta to Sofia flights
Philadelphia to Sofia flights
Tampa to Sofia flights
Santa Ana to Sofia flights
Baltimore to Sofia flights
Austin to Sofia flights
Raleigh to Sofia flights
Detroit to Sofia flights
Richmond to Sofia flights
Love Field to Sofia flights
St. Louis to Sofia flights
Pittsburgh to Sofia flights
Hobby to Sofia flights
Fort Lauderdale to Sofia flights
Myrtle Beach to Sofia flights
San Jose to Sofia flights
Salt Lake City to Sofia flights
West Palm Beach to Sofia flights
Pearson Intl to Sofia flights
Kansas City to Sofia flights
Cleveland to Sofia flights
Fargo to Sofia flights
Hartford to Sofia flights
Cincinnati to Sofia flights
Anchorage to Sofia flights
Nashville to Sofia flights
Pensacola to Sofia flights
Jacksonville to Sofia flights
Portland to Sofia flights

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 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$356Average$778FlexibilityNo cancel feeOn-time70%
KLMCheapest$380Average$735FlexibilityNo cancel feeOn-time75%
SWISSCheapest$388Average$822FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$394Average$801FlexibilityNo cancel feeOn-time78%
Air FranceCheapest$397Average$684FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$422Average$837FlexibilityNo cancel feeOn-time69%
LOTCheapest$437Average$796FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$437Average$884FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$478Average$984FlexibilityNo cancel feeOn-time62%
ITA AirwaysCheapest$505Average$1,042FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights