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

British Airways, Austrian Airlines, and Air France 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 44% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 13 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 15m on average. On the other hand, flying from New York to Sofia takes 12h 30m 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 April 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.

$264 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.

7:30 pm - 3:30 pm

JFK

SOF

13h 00m

1 stop

5:00 am - 5:30 pm

SOF

JFK

19h 30m

1 stop

$531Air Serbia

Fri, Aug 28 - Fri, Sep 25

7:30 pm - 3:30 pm

JFK

SOF

13h 00m

1 stop

4:00 pm - 5:30 pm

SOF

JFK

32h 30m

1 stop

$532Air Serbia

Fri, Aug 28 - Sat, Sep 26

9:50 pm - 3:00 pm

BOS

SOF

34h 10m

1 stop

3:50 pm - 7:55 pm

SOF

BOS

35h 05m

1 stop

$533Turkish Airlines

Tue, Sep 15 - Wed, Sep 30

9:50 pm - 3:00 pm

BOS

SOF

34h 10m

1 stop

9:05 pm - 7:55 pm

SOF

BOS

29h 50m

1 stop

$537Turkish Airlines

Wed, Sep 16 - Wed, Sep 30

7:30 pm - 3:30 pm

JFK

SOF

13h 00m

1 stop

5:00 am - 11:55 am

SOF

JFK

13h 55m

1 stop

$544Air Serbia

Sun, Aug 23 - Mon, Sep 21

5:40 pm - 11:40 am

EWR

SOF

11h 00m

1 stop

4:05 pm - 1:55 pm

SOF

EWR

28h 50m

1 stop

$606Austrian Airlines

Mon, Sep 14 - Mon, Sep 28

2:32 pm - 12:10 pm

LGA

SOF

14h 38m

2 stops

6:30 am - 2:36 pm

SOF

LGA

15h 06m

2 stops

$663United Airlines

Tue, Aug 25 - Thu, Sep 24

2:32 pm - 12:10 pm

LGA

SOF

14h 38m

2 stops

6:30 am - 11:27 pm

SOF

LGA

23h 57m

2 stops

$669United Airlines

Mon, Aug 24 - Thu, Sep 3

1:16 pm - 2:00 pm

MDW

SOF

16h 44m

2 stops

7:00 am - 4:27 pm

SOF

MDW

17h 27m

2 stops

$847KLM

Sat, Aug 8 - Fri, Aug 21

11:05 am - 2:00 pm

MDW

SOF

18h 55m

2 stops

7:00 am - 9:46 pm

SOF

MDW

22h 46m

2 stops

$878KLM

Fri, Jul 10 - Tue, Aug 25

Air France flights from United States to Sofia

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

Air France

Aug 5

BOS7:10 pmBoston Logan Intl

11h 50m

1 stop

SOF2:00 pmSofia

Aug 26

SOF7:00 amSofia

13h 39m

1 stop

BOS1:39 pmBoston Logan Intl

$618

Air France

Apr 26

JFK4:30 pmNew York John F Kennedy Intl

14h 30m

1 stop

SOF2:00 pmSofia

May 12

SOF7:00 amSofia

18h 42m

2 stops

JFK6:42 pmNew York John F Kennedy Intl

$623

Air France

Aug 3

EWR5:00 pmNewark

14h 00m

1 stop

SOF2:00 pmSofia

Aug 14

SOF7:00 amSofia

14h 45m

1 stop

EWR2:45 pmNewark

$648

United Airlines flights from United States to Sofia

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

United Airlines

Oct 14

BOS2:40 pmBoston Logan Intl

14h 30m

2 stops

SOF12:10 pmSofia

Oct 29

SOF6:00 amSofia

19h 35m

1 stop

BOS7:35 pmBoston Logan Intl

$651

United Airlines

Oct 12

BOS12:34 pmBoston Logan Intl

16h 36m

2 stops

SOF12:10 pmSofia

Oct 28

SOF6:00 amSofia

19h 35m

1 stop

BOS7:35 pmBoston Logan Intl

$652

United Airlines

Oct 13

BOS12:30 pmBoston Logan Intl

16h 40m

2 stops

SOF12:10 pmSofia

Oct 30

SOF7:55 amSofia

12h 35m

1 stop

BOS2:30 pmBoston Logan Intl

$653

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Fri 8/28

7:30 pm-3:30 pm

1 stop13h 00m

Sofia

Fri 9/25

5:00 am-5:30 pm

1 stop19h 30m

$531

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Fri 8/28

7:30 pm-3:30 pm

1 stop13h 00m

Sofia

Sat 9/26

4:00 pm-5:30 pm

1 stop32h 30m

$532

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 9/15

9:50 pm-3:00 pm

1 stop34h 10m

Sofia

Wed 9/30

3:50 pm-7:55 pm

1 stop35h 05m

$533

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 9/16

9:50 pm-3:00 pm

1 stop34h 10m

Sofia

Wed 9/30

9:05 pm-7:55 pm

1 stop29h 50m

$537

Quickest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sun 8/23

7:30 pm-3:30 pm

1 stop13h 00m

Sofia

Mon 9/21

5:00 am-11:55 am

1 stop13h 55m

$544

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 9/14

5:40 pm-11:40 am

1 stop11h 00m

Sofia

Mon 9/28

4:05 pm-1:55 pm

1 stop28h 50m

$606

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Tue 8/25

2:32 pm-12:10 pm

2 stops14h 38m

Sofia

Thu 9/24

6:30 am-2:36 pm

2 stops15h 06m

$663

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Mon 8/24

2:32 pm-12:10 pm

2 stops14h 38m

Sofia

Thu 9/3

6:30 am-11:27 pm

2 stops23h 57m

$669

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sat 8/8

1:16 pm-2:00 pm

2 stops16h 44m

Sofia

Fri 8/21

7:00 am-4:27 pm

2 stops17h 27m

$847

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Fri 7/10

11:05 am-2:00 pm

2 stops18h 55m

Sofia

Tue 8/25

7:00 am-9:46 pm

2 stops22h 46m

$878

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 November. Flight prices, which tend to average around $506, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from United States during February instead. Flights to Sofia in February, while not as cheap as those in November, still average around $510.

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 $668 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 15m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 15m

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 April 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 7.6 1,923 reviews	Search SWISS flights
British Airways	PriceFrom $356	Free Cancellation	Rating 6.7 7,892 reviews	Search British Airways flights
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,502 reviews	Search KLM flights
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 902 reviews	Search Austrian Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.4 1,572 reviews	Search Air France flights
United Airlines	PriceFrom $409	Free Cancellation	Rating 7.4 9,605 reviews	Search United Airlines flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,188 reviews	Search LOT flights
Lufthansa	PriceFrom $418	Free Cancellation	Rating 6.8 7,930 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $449	Free Cancellation	Rating 7.3 4,308 reviews	Search Turkish Airlines flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,946 reviews	Search JetBlue 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.