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

Austrian Airlines, SWISS, and British Airways 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 40% 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 12h 10m on average. On the other hand, flying from New York to Sofia takes 13h 10m 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 June 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.

$224 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.

9:35 pm - 9:45 am

MIA

SOF

29h 10m

2 stops

11:25 pm - 8:00 pm

SOF

MIA

27h 35m

1 stop

$624Multiple Airlines

Thu, Oct 8 - Tue, Oct 20

9:35 pm - 9:45 am

MIA

SOF

29h 10m

2 stops

11:25 pm - 8:00 pm

SOF

MIA

27h 35m

1 stop

$629Multiple Airlines

Tue, Oct 6 - Tue, Oct 20

9:45 pm - 8:20 pm

IAD

SOF

15h 35m

1 stop

3:50 pm - 11:35 am

SOF

IAD

26h 45m

1 stop

$722Turkish Airlines

Tue, Aug 4 - Wed, Sep 9

1:20 pm - 3:00 pm

IAD

SOF

18h 40m

1 stop

9:10 pm - 11:35 am

SOF

IAD

21h 25m

1 stop

$740Turkish Airlines

Sat, Sep 12 - Tue, Sep 15

3:34 pm - 1:15 pm

IAD

SOF

15h 41m

2 stops

6:25 am - 5:32 pm

SOF

IAD

18h 07m

2 stops

$750United Airlines

Tue, Oct 27 - Tue, Nov 10

3:00 pm - 1:15 pm

LGA

SOF

15h 15m

2 stops

7:55 am - 11:27 pm

SOF

LGA

22h 32m

2 stops

$761United Airlines

Mon, Nov 2 - Tue, Nov 17

9:05 pm - 11:15 pm

SFO

SOF

16h 10m

1 stop

6:20 am - 12:40 pm

SOF

SFO

16h 20m

1 stop

$805Lufthansa

Wed, Sep 9 - Wed, Sep 23

9:40 pm - 10:45 pm

SFO

SOF

15h 05m

1 stop

6:00 am - 7:35 pm

SOF

SFO

23h 35m

1 stop

$821Lufthansa

Sat, Nov 28 - Sat, Dec 12

12:30 pm - 3:05 pm

MDW

SOF

18h 35m

2 stops

7:00 am - 4:39 pm

SOF

MDW

17h 39m

2 stops

$840KLM

Sat, Oct 24 - Sun, Nov 8

1:18 pm - 2:00 pm

MDW

SOF

16h 42m

2 stops

7:00 am - 6:19 pm

SOF

MDW

19h 19m

2 stops

$900KLM

Thu, Jul 30 - Fri, Sep 18

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Austrian Airlines flights from United States to Sofia

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

Austrian Airlines

Oct 27

JFK7:10 pmNew York John F Kennedy Intl

10h 40m

1 stop

SOF11:50 amSofia

Nov 10

SOF7:55 amSofia

13h 20m

1 stop

JFK2:15 pmNew York John F Kennedy Intl

$714

Austrian Airlines

Oct 29

JFK7:10 pmNew York John F Kennedy Intl

10h 40m

1 stop

SOF11:50 amSofia

Nov 12

SOF7:55 amSofia

13h 20m

1 stop

JFK2:15 pmNew York John F Kennedy Intl

$729

Austrian Airlines

Aug 10

IAD5:25 pmWashington, D.C. Dulles Intl

17h 45m

1 stop

SOF6:10 pmSofia

Aug 24

SOF1:40 pmSofia

31h 55m

1 stop

IAD2:35 pmWashington, D.C. Dulles Intl

$790

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Jul 7

JFK8:30 pmNew York John F Kennedy Intl

30h 50m

1 stop

SOF10:20 amSofia

Aug 12

SOF11:05 amSofia

32h 45m

1 stop

JFK12:50 pmNew York John F Kennedy Intl

$828

SWISS

Sep 6

SFO7:35 pmSan Francisco

30h 40m

1 stop

SOF12:15 pmSofia

Sep 21

SOF3:40 pmSofia

34h 35m

1 stop

SFO4:15 pmSan Francisco

$832

SWISS

Sep 8

SFO7:35 pmSan Francisco

37h 05m

2 stops

SOF6:40 pmSofia

Sep 21

SOF3:40 pmSofia

36h 51m

2 stops

SFO6:31 pmSan Francisco

$855

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 10/8

9:35 pm-9:45 am

2 stops29h 10m

Sofia

Tue 10/20

11:25 pm-8:00 pm

1 stop27h 35m

$624

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 10/6

9:35 pm-9:45 am

2 stops29h 10m

Sofia

Tue 10/20

11:25 pm-8:00 pm

1 stop27h 35m

$629

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 8/4

9:45 pm-8:20 pm

1 stop15h 35m

Sofia

Wed 9/9

3:50 pm-11:35 am

1 stop26h 45m

$722

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sat 9/12

1:20 pm-3:00 pm

1 stop18h 40m

Sofia

Tue 9/15

9:10 pm-11:35 am

1 stop21h 25m

$740

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 10/27

3:34 pm-1:15 pm

2 stops15h 41m

Sofia

Tue 11/10

6:25 am-5:32 pm

2 stops18h 07m

$750

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Mon 11/2

3:00 pm-1:15 pm

2 stops15h 15m

Sofia

Tue 11/17

7:55 am-11:27 pm

2 stops22h 32m

$761

Quickest round-trip

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Wed 9/9

9:05 pm-11:15 pm

1 stop16h 10m

Sofia

Wed 9/23

6:20 am-12:40 pm

1 stop16h 20m

$805

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 11/28

9:40 pm-10:45 pm

1 stop15h 05m

Sofia

Sat 12/12

6:00 am-7:35 pm

1 stop23h 35m

$821

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sat 10/24

12:30 pm-3:05 pm

2 stops18h 35m

Sofia

Sun 11/8

7:00 am-4:39 pm

2 stops17h 39m

$840

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Thu 7/30

1:18 pm-2:00 pm

2 stops16h 42m

Sofia

Fri 9/18

7:00 am-6:19 pm

2 stops19h 19m

$900

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 April. Flight prices, which tend to average around $666, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Sofia from United States during March instead. Flights to Sofia in March, while not as cheap as those in April, still average around $686.

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 $693 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 $586 on momondo.

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

You could potentially save up to 35% 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

Fastest flight time	10h 55m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 55m

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 June 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 7.6 937 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 9,894 reviews	Search United Airlines flights
Lufthansa	PriceFrom $395	Free Cancellation	Rating 6.8 8,108 reviews	Search Lufthansa flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.5 1,614 reviews	Search Air France flights
KLM	PriceFrom $403	Free Cancellation	Rating 7.8 1,531 reviews	Search KLM flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 1,979 reviews	Search SWISS flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,208 reviews	Search LOT flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,082 reviews	Search British Airways flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 3,012 reviews	Search JetBlue flights
Turkish Airlines	PriceFrom $512	Free Cancellation	Rating 7.4 4,428 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.