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

Lufthansa, British Airways, and SWISS 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 45% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 14 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 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 March 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.

$278 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 - 3:35 pm

JFK

SOF

13h 05m

1 stop

5:00 am - 5:30 pm

SOF

JFK

19h 30m

1 stop

$496Air Serbia

Fri, Sep 11 - Fri, Oct 2

7:30 pm - 3:35 pm

JFK

SOF

13h 05m

1 stop

4:05 pm - 5:30 pm

SOF

JFK

32h 25m

1 stop

$499Air Serbia

Thu, Sep 17 - Thu, Oct 1

9:50 pm - 1:15 pm

BOS

SOF

32h 25m

1 stop

9:35 am - 7:55 pm

SOF

BOS

17h 20m

1 stop

$514Turkish Airlines

Wed, Apr 22 - Wed, May 6

12:50 pm - 8:45 am

JFK

SOF

12h 55m

1 stop

3:50 pm - 10:30 pm

SOF

JFK

13h 40m

1 stop

$515Turkish Airlines

Mon, Apr 6 - Tue, Apr 21

5:30 pm - 12:10 pm

JFK

SOF

11h 40m

1 stop

6:10 am - 3:00 pm

SOF

JFK

15h 50m

1 stop

$524Lufthansa

Tue, Apr 28 - Tue, May 5

8:05 pm - 11:00 pm

BOS

SOF

19h 55m

1 stop

7:25 pm - 5:40 pm

SOF

BOS

29h 15m

1 stop

$535Lufthansa

Mon, Apr 13 - Mon, Apr 27

2:49 pm - 12:10 pm

LGA

SOF

14h 21m

2 stops

6:10 am - 6:01 pm

SOF

LGA

18h 51m

2 stops

$578United Airlines

Tue, Apr 14 - Tue, Apr 21

2:49 pm - 12:10 pm

LGA

SOF

14h 21m

2 stops

12:55 pm - 11:30 pm

SOF

LGA

17h 35m

2 stops

$580United Airlines

Tue, Apr 14 - Wed, Apr 22

1:24 pm - 2:00 pm

MDW

SOF

16h 36m

2 stops

7:00 am - 6:36 pm

SOF

MDW

19h 36m

2 stops

$863KLM

Sun, Apr 19 - Tue, May 5

1:24 pm - 2:00 pm

MDW

SOF

16h 36m

2 stops

7:00 am - 4:26 pm

SOF

MDW

17h 26m

2 stops

$909KLM

Sun, Apr 19 - Tue, May 5

KLM flights from United States to Sofia

Our best KLM deals on United States to Sofia flight tickets

KLM

Mar 31

JFK6:20 pmNew York John F Kennedy Intl

12h 40m

1 stop

SOF2:00 pmSofia

Apr 15

SOF7:00 amSofia

17h 05m

1 stop

JFK5:05 pmNew York John F Kennedy Intl

$578

KLM

Apr 1

JFK7:10 pmNew York John F Kennedy Intl

11h 50m

1 stop

SOF2:00 pmSofia

Apr 17

SOF7:00 amSofia

17h 05m

1 stop

JFK5:05 pmNew York John F Kennedy Intl

$628

KLM

Mar 25

JFK5:40 pmNew York John F Kennedy Intl

14h 25m

1 stop

SOF2:05 pmSofia

Apr 1

SOF7:00 amSofia

12h 25m

1 stop

JFK12:25 pmNew York John F Kennedy Intl

$647

Air France flights from United States to Sofia

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

Air France

Aug 4

EWR5:00 pmNewark

14h 00m

1 stop

SOF2:00 pmSofia

Aug 25

SOF7:00 amSofia

19h 09m

2 stops

EWR7:09 pmNewark

$576

Air France

Jul 14

BOS5:10 pmBoston Logan Intl

13h 50m

1 stop

SOF2:00 pmSofia

Aug 25

SOF7:00 amSofia

13h 39m

1 stop

BOS1:39 pmBoston Logan Intl

$596

Air France

Jul 7

BOS9:45 pmBoston Logan Intl

33h 15m

1 stop

SOF2:00 pmSofia

Aug 25

SOF7:00 amSofia

13h 39m

1 stop

BOS1:39 pmBoston Logan Intl

$598

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Fri 9/11

7:30 pm-3:35 pm

1 stop13h 05m

Sofia

Fri 10/2

5:00 am-5:30 pm

1 stop19h 30m

$496

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Thu 9/17

7:30 pm-3:35 pm

1 stop13h 05m

Sofia

Thu 10/1

4:05 pm-5:30 pm

1 stop32h 25m

$499

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 4/22

9:50 pm-1:15 pm

1 stop32h 25m

Sofia

Wed 5/6

9:35 am-7:55 pm

1 stop17h 20m

$514

Quickest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Mon 4/6

12:50 pm-8:45 am

1 stop12h 55m

Sofia

Tue 4/21

3:50 pm-10:30 pm

1 stop13h 40m

$515

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 4/28

5:30 pm-12:10 pm

1 stop11h 40m

Sofia

Tue 5/5

6:10 am-3:00 pm

1 stop15h 50m

$524

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 4/13

8:05 pm-11:00 pm

1 stop19h 55m

Sofia

Mon 4/27

7:25 pm-5:40 pm

1 stop29h 15m

$535

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Tue 4/14

2:49 pm-12:10 pm

2 stops14h 21m

Sofia

Tue 4/21

6:10 am-6:01 pm

2 stops18h 51m

$578

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Tue 4/14

2:49 pm-12:10 pm

2 stops14h 21m

Sofia

Wed 4/22

12:55 pm-11:30 pm

2 stops17h 35m

$580

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sun 4/19

1:24 pm-2:00 pm

2 stops16h 36m

Sofia

Tue 5/5

7:00 am-6:36 pm

2 stops19h 36m

$863

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sun 4/19

1:24 pm-2:00 pm

2 stops16h 36m

Sofia

Tue 5/5

7:00 am-4:26 pm

2 stops17h 26m

$909

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 $510, 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 November instead. Flights to Sofia in November, while not as cheap as those in February, still average around $516.

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 $669 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 12% 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 00m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 00m

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

Search flight deals

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 March 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 1,901 reviews	Search SWISS flights
British Airways	PriceFrom $356	Free Cancellation	Rating 6.7 7,809 reviews	Search British Airways flights
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,477 reviews	Search KLM flights
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 900 reviews	Search Austrian Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.4 1,547 reviews	Search Air France flights
United Airlines	PriceFrom $409	Free Cancellation	Rating 7.4 9,459 reviews	Search United Airlines flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,184 reviews	Search LOT flights
Lufthansa	PriceFrom $418	Free Cancellation	Rating 6.8 7,862 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $455	Free Cancellation	Rating 7.3 4,269 reviews	Search Turkish Airlines flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,911 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.