What is the cheapest airline that flies from United States to Sofia?

British Airways, SWISS, and Lufthansa are the most popular carriers operating from United States to Sofia

What airlines fly to Sofia?

Lufthansa, Turkish Airlines and United Airlines are the top three most popular airlines that fly to Sofia from United States according to our data. Lufthansa is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 12 different airlines that fly to Sofia on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Sofia?

Flight times vary depending on what airport in United States you fly out of and what airport in Sofia you fly into. For example, flying from New York to Sofia takes 11h 05m on average. On the other hand, flying from Boston to Sofia takes 14h on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from United States to Sofia Airport?

Prices for flights from United States to Sofia Airport are refreshed on a daily basis.

How many operators does momondo search for flights from United States to Sofia Airport?

As of October 2026, there are 12 operators available to choose from for flights from United States to Sofia Airport.

How old do you have to be to fly from United States to Sofia Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Sofia Airport.

What documentation or ID do you need to fly to Sofia Airport?

The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$230 Cheap Flights from the United States to Sofia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Sofia

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Sofia

Enter your travel dates to find the best prices.

8:00 pm - 1:10 amBOS Boston Logan Intl-SOF Sofia

22h 10m1 stop Madrid Barajas

10:55 am - 6:25 pmSOF Sofia-BOS Boston Logan Intl

14h 30m1 stop Madrid Barajas

$557Multiple Airlines

Thu, Jan 14 - Thu, Jan 28

5:50 pm - 1:10 amIAD Washington, D.C. Dulles Intl-SOF Sofia

24h 20m1 stop Madrid Barajas

4:55 pm - 4:20 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

30h 25m1 stop Madrid Barajas

$558Multiple Airlines

Thu, Jan 14 - Thu, Jan 28

9:20 pm - 8:50 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

16h 30m1 stop Istanbul

9:30 am - 11:45 amSOF Sofia-IAD Washington, D.C. Dulles Intl

33h 15m1 stop Istanbul

$638Turkish Airlines

Sat, Dec 5 - Sat, Dec 19

9:20 pm - 8:40 amIAD Washington, D.C. Dulles Intl-SOF Sofia

28h 20m1 stop Istanbul

4:00 pm - 7:25 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

34h 25m1 stop Istanbul

$638Turkish Airlines

Wed, Nov 18 - Wed, Dec 2

9:40 pm - 10:55 pmSFO San Francisco-SOF Sofia

15h 15m1 stop Munich Franz Josef Strauss

6:25 am - 12:35 pmSOF Sofia-SFO San Francisco

16h 10m1 stop Frankfurt am Main

$687Lufthansa

Tue, Feb 16 - Tue, Mar 2

9:40 pm - 10:55 pmSFO San Francisco-SOF Sofia

15h 15m1 stop Munich Franz Josef Strauss

6:25 am - 12:35 pmSOF Sofia-SFO San Francisco

16h 10m1 stop Frankfurt am Main

$688Lufthansa

Tue, Feb 16 - Tue, Mar 2

4:35 pm - 2:00 amLAX Los Angeles-SOF Sofia

23h 25m1 stop Warsaw Frederic Chopin

5:30 am - 2:35 pmSOF Sofia-LAX Los Angeles

19h 05m1 stop Warsaw Frederic Chopin

$689LOT

Wed, Apr 14 - Wed, Apr 28

10:05 pm - 6:00 pmLAX Los Angeles-SOF Sofia

33h 55m1 stop Warsaw Frederic Chopin

2:35 pm - 2:35 pmSOF Sofia-LAX Los Angeles

34h 00m1 stop Warsaw Frederic Chopin

$690LOT

Sun, Apr 18 - Sun, May 2

7:30 pm - 3:00 amJFK New York John F Kennedy Intl-SOF Sofia

24h 30m1 stop Belgrade Nikola Tesla

4:00 pm - 5:30 pmSOF Sofia-JFK New York John F Kennedy Intl

32h 30m1 stop Belgrade Nikola Tesla

$701Air Serbia

Sat, Apr 17 - Sat, May 29

7:30 pm - 3:30 pmJFK New York John F Kennedy Intl-SOF Sofia

13h 00m1 stop Belgrade Nikola Tesla

4:00 pm - 5:30 pmSOF Sofia-JFK New York John F Kennedy Intl

32h 30m1 stop Belgrade Nikola Tesla

$701Air Serbia

Sat, Apr 17 - Thu, May 27

Recent last minute flight deals from the United States to Sofia

Enter your travel dates to find the best prices.

12:30 am - 7:10 pmJFK New York John F Kennedy Intl-SOF Sofia

11h 40m1 stop Rome Fiumicino

6:55 pm - 10:30 pmSOF Sofia-JFK New York John F Kennedy Intl

34h 35m1 stop Rome Fiumicino

$702Multiple Airlines

Mon, Oct 19 - Wed, Oct 21

8:10 pm - 8:20 pmORD Chicago O'Hare Intl-SOF Sofia

16h 10m1 stop Istanbul

9:30 am - 7:20 pmSOF Sofia-ORD Chicago O'Hare Intl

17h 50m1 stop Istanbul

$705Turkish Airlines

Thu, Oct 22 - Wed, Nov 4

1:15 pm - 8:45 amIAD Washington, D.C. Dulles Intl-SOF Sofia

12h 30m1 stop Istanbul

4:00 pm - 12:45 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

26h 45m1 stop Istanbul

$708Turkish Airlines

Tue, Oct 20 - Wed, Oct 28

10:15 pm - 12:00 pmBOS Boston Logan Intl-SOF Sofia

31h 45m2 stops Dublin Istanbul Sabiha Gokcen

11:00 pm - 1:55 pmSOF Sofia-BOS Boston Logan Intl

21h 55m1 stop Dublin

$726Multiple Airlines

Sat, Oct 24 - Thu, Nov 12

6:25 pm - 12:50 pmJFK New York John F Kennedy Intl-SOF Sofia

11h 25m1 stop Vienna Intl

7:55 am - 2:15 pmSOF Sofia-JFK New York John F Kennedy Intl

13h 20m1 stop Vienna Intl

$773Austrian Airlines

Sat, Oct 24 - Thu, Nov 5

5:40 pm - 12:50 pmEWR Newark-SOF Sofia

12h 10m1 stop Vienna Intl

7:55 am - 1:55 pmSOF Sofia-EWR Newark

13h 00m1 stop Vienna Intl

$773Austrian Airlines

Sat, Oct 24 - Thu, Nov 5

5:30 pm - 2:15 pmJFK New York John F Kennedy Intl-SOF Sofia

13h 45m1 stop Munich Franz Josef Strauss

6:00 am - 4:40 pmSOF Sofia-JFK New York John F Kennedy Intl

16h 40m1 stop Munich Franz Josef Strauss

$787Lufthansa

Sat, Oct 24 - Sun, Nov 1

5:30 pm - 2:15 pmJFK New York John F Kennedy Intl-SOF Sofia

13h 45m1 stop Munich Franz Josef Strauss

6:00 am - 2:35 pmSOF Sofia-JFK New York John F Kennedy Intl

14h 35m2 stops Munich Franz Josef Strauss Frankfurt am Main

$810Lufthansa

Sat, Oct 24 - Sun, Nov 1

5:40 pm - 12:50 pmEWR Newark-SOF Sofia

12h 10m1 stop Vienna Intl

6:00 am - 8:27 amSOF Sofia-EWR Newark

32h 27m2 stops Munich Franz Josef Strauss Boston Logan Intl

$812United Airlines

Sat, Oct 24 - Sun, Nov 1

9:00 am - 11:55 pmEWR Newark-SOF Sofia

31h 55m2 stops Toronto Pearson Intl Munich Franz Josef Strauss

6:00 am - 8:27 pmSOF Sofia-EWR Newark

20h 27m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

$816United Airlines

Sat, Oct 24 - Sun, Nov 1

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British Airways flights from United States to Sofia

Our best British Airways deals on United States to Sofia flight tickets

British Airways

Feb 1

ORD8:45 pmChicago O'Hare Intl

39h 25m

2 stops

SOF8:10 pmSofia

Feb 15

SOF5:15 pmSofia

34h 08m

2 stops

ORD7:23 pmChicago O'Hare Intl

$732

British Airways

Dec 1

JFK6:10 pmNew York John F Kennedy Intl

19h 00m

1 stop

SOF8:10 pmSofia

Dec 7

SOF5:15 pmSofia

28h 10m

1 stop

JFK2:25 pmNew York John F Kennedy Intl

$738

British Airways

Mar 22

EWR5:21 pmNewark

44h 49m

2 stops

SOF8:10 pmSofia

Apr 5

SOF8:10 pmSofia

24h 45m

1 stop

EWR1:55 pmNewark

$740

Turkish Airlines flights from United States to Sofia

Our best Turkish Airlines deals on United States to Sofia flight tickets

Turkish Airlines

Dec 1

IAD1:30 pmWashington, D.C. Dulles Intl

12h 10m

1 stop

SOF8:40 amSofia

Dec 8

SOF9:30 amSofia

16h 55m

1 stop

IAD7:25 pmWashington, D.C. Dulles Intl

$638

Turkish Airlines

Mar 18

IAD2:30 pmWashington, D.C. Dulles Intl

14h 35m

1 stop

SOF11:05 amSofia

Mar 28

SOF9:10 pmSofia

21h 20m

1 stop

IAD11:30 amWashington, D.C. Dulles Intl

$642

Turkish Airlines

Mar 18

IAD2:30 pmWashington, D.C. Dulles Intl

14h 35m

1 stop

SOF11:05 amSofia

Mar 28

SOF9:10 pmSofia

21h 20m

1 stop

IAD11:30 amWashington, D.C. Dulles Intl

$643

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSofia

BOS Boston Logan Intl - SOF Sofia

BOSSOF

Boston Logan Intl

Thu 1/14

8:00 pm-1:10 am

1 stop22h 10m

Sofia

Thu 1/28

10:55 am-6:25 pm

1 stop14h 30m

$557

Washington, D.C.Sofia

IAD Washington, D.C. Dulles Intl - SOF Sofia

IADSOF

Washington, D.C. Dulles Intl

Thu 1/14

5:50 pm-1:10 am

1 stop24h 20m

Sofia

Thu 1/28

4:55 pm-4:20 pm

1 stop30h 25m

$558

Washington, D.C.Sofia

IAD Washington, D.C. Dulles Intl - SOF Sofia

IADSOF

Washington, D.C. Dulles Intl

Sat 12/5

9:20 pm-8:50 pm

1 stop16h 30m

Sofia

Sat 12/19

9:30 am-11:45 am

1 stop33h 15m

$638

Washington, D.C.Sofia

IAD Washington, D.C. Dulles Intl - SOF Sofia

IADSOF

Washington, D.C. Dulles Intl

Wed 11/18

9:20 pm-8:40 am

1 stop28h 20m

Sofia

Wed 12/2

4:00 pm-7:25 pm

1 stop34h 25m

$638

Quickest round-trip

San FranciscoSofia

SFO San Francisco - SOF Sofia

SFOSOF

San Francisco

Tue 2/16

9:40 pm-10:55 pm

1 stop15h 15m

Sofia

Tue 3/2

6:25 am-12:35 pm

1 stop16h 10m

$687

San FranciscoSofia

SFO San Francisco - SOF Sofia

SFOSOF

San Francisco

Tue 2/16

9:40 pm-10:55 pm

1 stop15h 15m

Sofia

Tue 3/2

6:25 am-12:35 pm

1 stop16h 10m

$688

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Wed 4/14

4:35 pm-2:00 am

1 stop23h 25m

Sofia

Wed 4/28

5:30 am-2:35 pm

1 stop19h 05m

$689

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Sun 4/18

10:05 pm-6:00 pm

1 stop33h 55m

Sofia

Sun 5/2

2:35 pm-2:35 pm

1 stop34h 00m

$690

New YorkSofia

JFK New York John F Kennedy Intl - SOF Sofia

JFKSOF

New York John F Kennedy Intl

Sat 4/17

7:30 pm-3:00 am

1 stop24h 30m

Sofia

Sat 5/29

4:00 pm-5:30 pm

1 stop32h 30m

$701

New YorkSofia

JFK New York John F Kennedy Intl - SOF Sofia

JFKSOF

New York John F Kennedy Intl

Sat 4/17

7:30 pm-3:30 pm

1 stop13h 00m

Sofia

Thu 5/27

4:00 pm-5:30 pm

1 stop32h 30m

$701

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Sofia?

The cheapest month to fly to Sofia from United States is in February. Flight prices, which tend to average around $602, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Sofia from United States during January instead. Flights to Sofia in January, while not as cheap as those in February, still average around $620.

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

You are more likely to see cheaper flights to Sofia from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $749 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from United States for as low as $711 on momondo.

Can stopping save me money on United States to Sofia flights?

You could potentially save up to 41% on your flight if you consider stops on a United States to Sofia flight.

Cheap United States to Sofia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Sofia

Best Price Found	$230
Fastest flight time	11h 05m
Direct flights	None

The best one-way flight to Sofia from United States in the past 72 hours is $230. The best round-trip flight deal from United States to Sofia found on momondo in the last 72 hours is $557.

The fastest flight from United States to Sofia takes 11h 05m

There are no direct flights from United States to Sofia. There are no popular flight routes from United States to Sofia.

Search flight deals

Frequently asked questions about flying from the United States to Sofia

When did momondo last update prices for flights from United States to Sofia Airport?
Prices for flights from United States to Sofia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to Sofia Airport?
As of October 2026, there are 12 operators available to choose from for flights from United States to Sofia Airport.
How old do you have to be to fly from United States to Sofia Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Sofia Airport.
What documentation or ID do you need to fly to Sofia Airport?
The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United States to Sofia

Compare and see reviews for airlines that fly from United States to Sofia with momondo

Airline	Rating	Free Cancellation	Price
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 980 reviews	Search Austrian Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
United Airlines	PriceFrom $399	Free Cancellation	Rating 7.3 10,389 reviews	Search United Airlines flights
KLM	PriceFrom $403	Free Cancellation	Rating 7.8 1,591 reviews	Search KLM flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 2,107 reviews	Search SWISS flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.6 1,191 reviews	Search LOT flights
Lufthansa	PriceFrom $416	Free Cancellation	Rating 6.8 8,279 reviews	Search Lufthansa flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,265 reviews	Search British Airways flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 3,059 reviews	Search JetBlue flights
Turkish Airlines	PriceFrom $522	Free Cancellation	Rating 7.4 4,454 reviews	Search Turkish Airlines flights

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from United States to Sofia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Sofia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United States to Sofia with flexible booking policies on momondo?

Yes. All flights to Sofia from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United States to Sofia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sofia from United States.

I’m not ready to book a flight from United States to Sofia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Sofia from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.