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

British Airways, United Airlines, 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 42% 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 Boston to Sofia takes 10h 35m on average. On the other hand, flying from New York to Sofia takes 10h 35m 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 September 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.

$210 Cheap Flights from the United States to Sofia in 2026

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.

11:47 pm - 8:10 pmLAX Los Angeles-SOF Sofia

34h 23m2 stops Chicago O'Hare Intl London Heathrow

5:15 pm - 1:25 pmSOF Sofia-LAX Los Angeles

30h 10m1 stop London Heathrow

$581British Airways

Mon, Feb 8 - Mon, Feb 22

5:25 pm - 8:10 pmSFO San Francisco-SOF Sofia

16h 45m1 stop London Heathrow

9:05 pm - 3:55 pmSOF Sofia-SFO San Francisco

27h 50m1 stop London Heathrow

$587British Airways

Tue, Mar 9 - Wed, Mar 24

8:50 pm - 7:20 pmLAX Los Angeles-SOF Sofia

36h 30m1 stop London Heathrow

9:05 pm - 3:50 pmSOF Sofia-LAX Los Angeles

28h 45m1 stop London Heathrow

$595Multiple Airlines

Wed, Nov 4 - Wed, Nov 18

5:30 pm - 10:55 pmLAX Los Angeles-SOF Sofia

19h 25m1 stop Munich Franz Josef Strauss

6:00 am - 10:31 pmSOF Sofia-LAX Los Angeles

26h 31m2 stops Munich Franz Josef Strauss Vancouver Intl

$598Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

6:00 pm - 6:00 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

17h 00m1 stop Vienna Intl

7:55 am - 2:10 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

13h 15m1 stop Vienna Intl

$607Austrian Airlines

Wed, Nov 4 - Wed, Nov 18

6:10 pm - 11:55 pmIAD Washington, D.C. Dulles Intl-SOF Sofia

22h 45m1 stop Vienna Intl

7:55 am - 2:10 pmSOF Sofia-IAD Washington, D.C. Dulles Intl

13h 15m1 stop Vienna Intl

$607Austrian Airlines

Tue, Dec 1 - Tue, Dec 8

5:30 pm - 10:55 pmLAX Los Angeles-SOF Sofia

19h 25m1 stop Munich Franz Josef Strauss

6:00 am - 3:15 pmSOF Sofia-LAX Los Angeles

19h 15m1 stop Munich Franz Josef Strauss

$608Lufthansa

Mon, Nov 2 - Tue, Nov 10

5:30 pm - 6:20 pmLAX Los Angeles-SOF Sofia

14h 50m1 stop Munich Franz Josef Strauss

6:00 am - 3:15 pmSOF Sofia-LAX Los Angeles

19h 15m1 stop Munich Franz Josef Strauss

$608Lufthansa

Tue, Nov 3 - Tue, Nov 17

2:29 pm - 10:55 pmLAX Los Angeles-SOF Sofia

22h 26m2 stops Denver Intl Munich Franz Josef Strauss

6:00 am - 3:15 pmSOF Sofia-LAX Los Angeles

19h 15m1 stop Munich Franz Josef Strauss

$625United Airlines

Mon, Nov 2 - Tue, Nov 10

7:00 am - 1:15 pmDFW Dallas/Fort Worth-SOF Sofia

22h 15m3 stops Chicago O'Hare Intl Newark Munich Franz Josef Strauss

7:55 am - 8:43 pmSOF Sofia-DFW Dallas/Fort Worth

20h 48m2 stops Vienna Intl Newark

$632United Airlines

Tue, Nov 3 - Tue, Nov 17

Recent last minute flight deals from the United States to Sofia

Enter your travel dates to find the best prices.

8:45 am - 10:20 amORD Chicago O'Hare Intl-SOF Sofia

17h 35m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

6:10 am - 12:35 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 25m1 stop Munich Franz Josef Strauss

$696Multiple Airlines

Wed, Sep 16 - Fri, Oct 16

11:05 am - 10:20 amORD Chicago O'Hare Intl-SOF Sofia

15h 15m2 stops Montreal Pierre Elliott Trudeau Intl Zurich

6:10 am - 12:55 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 45m2 stops Munich Franz Josef Strauss Frankfurt am Main

$720Multiple Airlines

Wed, Sep 16 - Fri, Oct 16

6:30 pm - 6:05 pmORD Chicago O'Hare Intl-SOF Sofia

15h 35m1 stop Frankfurt am Main

8:00 am - 1:20 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 20m1 stop Vienna Intl

$733United Airlines

Wed, Sep 16 - Fri, Oct 16

7:47 am - 1:25 pmORD Chicago O'Hare Intl-SOF Sofia

21h 38m2 stops Washington, D.C. Reagan-National London Heathrow

8:10 pm - 9:05 pmSOF Sofia-ORD Chicago O'Hare Intl

32h 55m2 stops London Heathrow New York John F Kennedy Intl

$752British Airways

Thu, Sep 17 - Mon, Oct 12

7:30 am - 11:15 pmORD Chicago O'Hare Intl-SOF Sofia

31h 45m2 stops Boston Logan Intl Munich Franz Josef Strauss

8:00 am - 1:20 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 20m1 stop Vienna Intl

$760United Airlines

Thu, Sep 17 - Fri, Oct 16

10:20 pm - 1:55 pmJFK New York John F Kennedy Intl-SOF Sofia

32h 35m1 stop Warsaw Frederic Chopin

2:35 pm - 8:20 pmSOF Sofia-JFK New York John F Kennedy Intl

12h 45m1 stop Warsaw Frederic Chopin

$770LOT

Mon, Sep 14 - Wed, Oct 14

8:30 pm - 10:20 amJFK New York John F Kennedy Intl-SOF Sofia

30h 50m1 stop Zurich

3:40 pm - 4:35 pmSOF Sofia-JFK New York John F Kennedy Intl

31h 55m1 stop Zurich

$789SWISS

Tue, Sep 15 - Mon, Oct 5

8:30 pm - 10:20 amJFK New York John F Kennedy Intl-SOF Sofia

30h 50m1 stop Zurich

1:05 pm - 4:35 pmSOF Sofia-JFK New York John F Kennedy Intl

34h 30m1 stop Zurich

$789SWISS

Tue, Sep 15 - Tue, Oct 6

9:25 pm - 1:25 pmEWR Newark-SOF Sofia

33h 00m1 stop London Heathrow

9:25 pm - 7:25 pmSOF Sofia-EWR Newark

29h 00m1 stop London Heathrow

$805British Airways

Wed, Sep 16 - Wed, Oct 7

9:50 pm - 1:55 pmORD Chicago O'Hare Intl-SOF Sofia

32h 05m1 stop Warsaw Frederic Chopin

6:40 pm - 7:55 pmSOF Sofia-ORD Chicago O'Hare Intl

33h 15m1 stop Warsaw Frederic Chopin

$844LOT

Mon, Sep 14 - Mon, Feb 1

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United Airlines flights from United States to Sofia

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

United Airlines

Oct 27

IAD3:37 pmWashington, D.C. Dulles Intl

15h 38m

2 stops

SOF1:15 pmSofia

Nov 3

SOF7:55 amSofia

13h 15m

1 stop

IAD2:10 pmWashington, D.C. Dulles Intl

$622

United Airlines

Nov 2

LAX2:29 pmLos Angeles

22h 26m

2 stops

SOF10:55 pmSofia

Nov 10

SOF6:00 amSofia

19h 15m

1 stop

LAX3:15 pmLos Angeles

$625

United Airlines

Nov 3

DFW7:00 amDallas/Fort Worth

22h 15m

3 stops

SOF1:15 pmSofia

Nov 17

SOF7:55 amSofia

20h 48m

2 stops

DFW8:43 pmDallas/Fort Worth

$632

Lufthansa flights from United States to Sofia

Our best Lufthansa deals on United States to Sofia flight tickets

Lufthansa

Nov 2

LAX5:30 pmLos Angeles

19h 25m

1 stop

SOF10:55 pmSofia

Nov 10

SOF6:00 amSofia

19h 15m

1 stop

LAX3:15 pmLos Angeles

$608

Lufthansa

Nov 18

IAD10:55 pmWashington, D.C. Dulles Intl

12h 25m

1 stop

SOF6:20 pmSofia

Nov 25

SOF6:00 amSofia

21h 05m

1 stop

IAD8:05 pmWashington, D.C. Dulles Intl

$609

Lufthansa

Nov 18

IAD10:55 pmWashington, D.C. Dulles Intl

12h 25m

1 stop

SOF6:20 pmSofia

Nov 25

SOF6:00 amSofia

21h 05m

1 stop

IAD8:05 pmWashington, D.C. Dulles Intl

$610

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Mon 2/8

11:47 pm-8:10 pm

2 stops34h 23m

Sofia

Mon 2/22

5:15 pm-1:25 pm

1 stop30h 10m

$581

San FranciscoSofia

SFO San Francisco - SOF Sofia

SFOSOF

San Francisco

Tue 3/9

5:25 pm-8:10 pm

1 stop16h 45m

Sofia

Wed 3/24

9:05 pm-3:55 pm

1 stop27h 50m

$587

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Wed 11/4

8:50 pm-7:20 pm

1 stop36h 30m

Sofia

Wed 11/18

9:05 pm-3:50 pm

1 stop28h 45m

$595

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Tue 11/3

5:30 pm-10:55 pm

1 stop19h 25m

Sofia

Tue 11/17

6:00 am-10:31 pm

2 stops26h 31m

$598

Quickest round-trip

Washington, D.C.Sofia

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

IADSOF

Washington, D.C. Dulles Intl

Wed 11/4

6:00 pm-6:00 pm

1 stop17h 00m

Sofia

Wed 11/18

7:55 am-2:10 pm

1 stop13h 15m

$607

Washington, D.C.Sofia

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

IADSOF

Washington, D.C. Dulles Intl

Tue 12/1

6:10 pm-11:55 pm

1 stop22h 45m

Sofia

Tue 12/8

7:55 am-2:10 pm

1 stop13h 15m

$607

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Mon 11/2

5:30 pm-10:55 pm

1 stop19h 25m

Sofia

Tue 11/10

6:00 am-3:15 pm

1 stop19h 15m

$608

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Tue 11/3

5:30 pm-6:20 pm

1 stop14h 50m

Sofia

Tue 11/17

6:00 am-3:15 pm

1 stop19h 15m

$608

Los AngelesSofia

LAX Los Angeles - SOF Sofia

LAXSOF

Los Angeles

Mon 11/2

2:29 pm-10:55 pm

2 stops22h 26m

Sofia

Tue 11/10

6:00 am-3:15 pm

1 stop19h 15m

$625

DallasSofia

DFW Dallas/Fort Worth - SOF Sofia

DFWSOF

Dallas/Fort Worth

Tue 11/3

7:00 am-1:15 pm

3 stops22h 15m

Sofia

Tue 11/17

7:55 am-8:43 pm

2 stops20h 48m

$632

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 $598, 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 $618.

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 $720 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 $601 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	$210
Fastest flight time	10h 35m
Direct flights	None

The best one-way flight to Sofia from United States in the past 72 hours is $210. The best round-trip flight deal from United States to Sofia found on momondo in the last 72 hours is $581.

The fastest flight from United States to Sofia takes 10h 35m

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 September 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
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,576 reviews	Search KLM flights
Austrian Airlines	PriceFrom $387	Free Cancellation	Rating 7.6 959 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 10,209 reviews	Search United Airlines flights
Air France	PriceFrom $394	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 2,072 reviews	Search SWISS flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,200 reviews	Search LOT flights
Lufthansa	PriceFrom $415	Free Cancellation	Rating 6.8 8,221 reviews	Search Lufthansa flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,215 reviews	Search British Airways flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights
Turkish Airlines	PriceFrom $516	Free Cancellation	Rating 7.4 4,473 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.