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

British Airways, United Airlines, and Air France are the most popular carriers operating from United States to Sofia

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 9h 55m 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.

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.

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 May 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.

$248 Cheap Flights from the United States to Sofia in 2026

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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.

5:30 pm - 1:15 pm

JFK

SOF

12h 45m

1 stop

6:00 am - 10:39 pm

SOF

JFK

23h 39m

2 stops

$647Multiple Airlines

Tue, Nov 24 - Tue, Dec 8

9:45 pm - 3:20 pm

JFK

SOF

10h 35m

1 stop

6:55 pm - 8:05 pm

SOF

JFK

32h 10m

1 stop

$650Austrian Airlines

Wed, Aug 26 - Wed, Sep 9

7:30 pm - 3:30 pm

JFK

SOF

13h 00m

1 stop

4:00 pm - 11:55 am

SOF

JFK

26h 55m

1 stop

$655Air Serbia

Fri, Sep 4 - Sun, Sep 13

2:32 pm - 1:25 pm

LGA

SOF

15h 53m

2 stops

6:25 am - 2:42 pm

SOF

LGA

15h 17m

2 stops

$694United Airlines

Mon, Nov 9 - Thu, Nov 19

6:30 pm - 10:45 pm

LAX

SOF

19h 15m

1 stop

6:25 am - 1:05 pm

SOF

LAX

16h 40m

1 stop

$720Lufthansa

Wed, Oct 28 - Wed, Nov 11

6:30 pm - 10:45 pm

LAX

SOF

19h 15m

1 stop

6:25 am - 1:05 pm

SOF

LAX

16h 40m

1 stop

$724Lufthansa

Tue, Oct 27 - Tue, Nov 10

6:00 am - 6:20 pm

BOS

SOF

29h 20m

2 stops

7:55 am - 11:54 pm

SOF

BOS

22h 59m

2 stops

$748United Airlines

Sun, Nov 22 - Sun, Dec 6

2:12 pm - 2:00 pm

ORD

SOF

15h 48m

2 stops

7:00 am - 2:15 pm

SOF

ORD

15h 15m

1 stop

$867KLM

Wed, Aug 12 - Sun, Sep 6

11:25 am - 8:45 am

ORD

SOF

13h 20m

1 stop

3:50 pm - 9:40 am

SOF

ORD

25h 50m

1 stop

$872Turkish Airlines

Tue, Aug 18 - Sat, Sep 26

1:27 pm - 2:00 pm

MDW

SOF

16h 33m

2 stops

7:00 am - 4:59 pm

SOF

MDW

17h 59m

2 stops

$877KLM

Sun, Aug 9 - Mon, Aug 31

Air Serbia flights from United States to Sofia

Our best Air Serbia deals on United States to Sofia flight tickets

Air Serbia

Sep 4

JFK7:30 pmNew York John F Kennedy Intl

13h 00m

1 stop

SOF3:30 pmSofia

Sep 13

SOF4:00 pmSofia

26h 55m

1 stop

JFK11:55 amNew York John F Kennedy Intl

$655

Air Serbia

Aug 17

JFK1:50 pmNew York John F Kennedy Intl

18h 40m

1 stop

SOF3:30 pmSofia

Sep 16

SOF4:00 pmSofia

32h 30m

1 stop

JFK5:30 pmNew York John F Kennedy Intl

$660

Air Serbia

Sep 4

JFK7:30 pmNew York John F Kennedy Intl

13h 00m

1 stop

SOF3:30 pmSofia

Sep 20

SOF4:00 pmSofia

26h 55m

1 stop

JFK11:55 amNew York John F Kennedy Intl

$664

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Oct 26

JFK5:25 pmNew York John F Kennedy Intl

18h 55m

2 stops

SOF6:20 pmSofia

Nov 9

SOF3:00 pmSofia

32h 40m

1 stop

JFK4:40 pmNew York John F Kennedy Intl

$672

SWISS

Oct 25

JFK5:25 pmNew York John F Kennedy Intl

14h 50m

1 stop

SOF2:15 pmSofia

Nov 8

SOF11:10 amSofia

58h 30m

2 stops

JFK2:40 pmNew York John F Kennedy Intl

$696

SWISS

Aug 25

JFK4:15 pmNew York John F Kennedy Intl

12h 55m

2 stops

SOF12:10 pmSofia

Sep 8

SOF1:05 pmSofia

30h 45m

1 stop

JFK12:50 pmNew York John F Kennedy Intl

$702

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 11/24

5:30 pm-1:15 pm

1 stop12h 45m

Sofia

Tue 12/8

6:00 am-10:39 pm

2 stops23h 39m

$647

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 8/26

9:45 pm-3:20 pm

1 stop10h 35m

Sofia

Wed 9/9

6:55 pm-8:05 pm

1 stop32h 10m

$650

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Fri 9/4

7:30 pm-3:30 pm

1 stop13h 00m

Sofia

Sun 9/13

4:00 pm-11:55 am

1 stop26h 55m

$655

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Mon 11/9

2:32 pm-1:25 pm

2 stops15h 53m

Sofia

Thu 11/19

6:25 am-2:42 pm

2 stops15h 17m

$694

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Wed 10/28

6:30 pm-10:45 pm

1 stop19h 15m

Sofia

Wed 11/11

6:25 am-1:05 pm

1 stop16h 40m

$720

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Tue 10/27

6:30 pm-10:45 pm

1 stop19h 15m

Sofia

Tue 11/10

6:25 am-1:05 pm

1 stop16h 40m

$724

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 11/22

6:00 am-6:20 pm

2 stops29h 20m

Sofia

Sun 12/6

7:55 am-11:54 pm

2 stops22h 59m

$748

Quickest round-trip

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 8/12

2:12 pm-2:00 pm

2 stops15h 48m

Sofia

Sun 9/6

7:00 am-2:15 pm

1 stop15h 15m

$867

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 8/18

11:25 am-8:45 am

1 stop13h 20m

Sofia

Sat 9/26

3:50 pm-9:40 am

1 stop25h 50m

$872

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sun 8/9

1:27 pm-2:00 pm

2 stops16h 33m

Sofia

Mon 8/31

7:00 am-4:59 pm

2 stops17h 59m

$877

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 $667, 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 August instead. Flights to Sofia in August, while not as cheap as those in April, still average around $675.

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 $671 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 $588 on momondo.

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

You could potentially save up to 37% 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	9h 55m
Direct flights	None

The fastest flight from United States to Sofia takes 9h 55m

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

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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 May 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
SWISS	PriceFrom $193	Free Cancellation	Rating 7.5 1,964 reviews	Search SWISS flights
Austrian Airlines	PriceFrom $387	Free Cancellation	Rating 7.6 923 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 9,762 reviews	Search United Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.4 1,595 reviews	Search Air France flights
KLM	PriceFrom $403	Free Cancellation	Rating 7.8 1,526 reviews	Search KLM flights
British Airways	PriceFrom $406	Free Cancellation	Rating 6.7 8,008 reviews	Search British Airways flights
Lufthansa	PriceFrom $407	Free Cancellation	Rating 6.8 8,032 reviews	Search Lufthansa flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,196 reviews	Search LOT flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 2,983 reviews	Search JetBlue flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,229 reviews	Search ITA Airways 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.