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

Lufthansa, 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 New York to Sofia takes 10h 35m on average. On the other hand, flying from Boston to Sofia takes 12h 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 44% 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.

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 February 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.

$217 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.

9:45 pm - 10:20 am

EWR

SOF

29h 35m

1 stop

6:55 pm - 1:55 pm

SOF

EWR

26h 00m

1 stop

$362Multiple Airlines

Mon, Apr 27 - Wed, May 6

9:45 pm - 10:20 am

EWR

SOF

29h 35m

1 stop

11:05 am - 8:15 pm

SOF

EWR

16h 10m

1 stop

$372SWISS

Mon, Apr 27 - Wed, May 6

1:00 pm - 12:10 pm

EWR

SOF

16h 10m

2 stops

8:00 am - 1:55 pm

SOF

EWR

12h 55m

1 stop

$399United Airlines

Tue, Apr 21 - Thu, May 7

1:00 pm - 12:10 pm

EWR

SOF

16h 10m

2 stops

12:55 pm - 6:45 pm

SOF

EWR

12h 50m

1 stop

$402United Airlines

Tue, Apr 21 - Wed, May 6

6:15 pm - 2:00 pm

JFK

SOF

12h 45m

1 stop

7:00 am - 12:25 pm

SOF

JFK

12h 25m

1 stop

$410KLM

Mon, Apr 20 - Thu, Apr 30

7:45 pm - 2:05 pm

JFK

SOF

12h 20m

1 stop

7:00 am - 12:25 pm

SOF

JFK

35h 25m

1 stop

$412KLM

Wed, Mar 11 - Mon, Mar 23

5:30 pm - 11:00 pm

LAX

SOF

19h 30m

1 stop

6:10 am - 1:10 pm

SOF

LAX

17h 00m

1 stop

$491Lufthansa

Sun, Apr 19 - Tue, Apr 28

5:30 pm - 11:00 pm

LAX

SOF

19h 30m

1 stop

6:10 am - 1:10 pm

SOF

LAX

17h 00m

1 stop

$515Lufthansa

Mon, Apr 13 - Tue, Apr 28

8:10 pm - 8:15 pm

ORD

SOF

16h 05m

1 stop

9:35 am - 9:40 am

SOF

ORD

32h 05m

1 stop

$539Turkish Airlines

Tue, Apr 7 - Wed, Apr 15

11:25 am - 8:15 pm

ORD

SOF

24h 50m

1 stop

3:50 pm - 9:40 am

SOF

ORD

25h 50m

1 stop

$542Turkish Airlines

Tue, Apr 14 - Thu, May 21

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Apr 27

EWR9:45 pmNewark

29h 35m

1 stop

SOF10:20 amSofia

May 6

SOF11:05 amSofia

16h 10m

1 stop

EWR8:15 pmNewark

$372

SWISS

Apr 14

BOS9:40 pmBoston Logan Intl

29h 40m

1 stop

SOF10:20 amSofia

Apr 28

SOF1:05 pmSofia

33h 05m

1 stop

BOS3:10 pmBoston Logan Intl

$390

SWISS

Mar 11

JFK10:00 pmNew York John F Kennedy Intl

14h 20m

2 stops

SOF6:20 pmSofia

Mar 23

SOF3:00 pmSofia

29h 05m

1 stop

JFK2:05 pmNew York John F Kennedy Intl

$413

United Airlines flights from United States to Sofia

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

United Airlines

Apr 21

EWR1:00 pmNewark

16h 10m

2 stops

SOF12:10 pmSofia

May 7

SOF8:00 amSofia

12h 55m

1 stop

EWR1:55 pmNewark

$399

United Airlines

Apr 21

EWR1:00 pmNewark

16h 10m

2 stops

SOF12:10 pmSofia

May 6

SOF12:55 pmSofia

12h 50m

1 stop

EWR6:45 pmNewark

$402

United Airlines

Apr 20

EWR2:30 pmNewark

14h 40m

2 stops

SOF12:10 pmSofia

May 5

SOF6:10 amSofia

19h 35m

1 stop

EWR6:45 pmNewark

$405

Fly from

Fly to

Route

Depart

Return

Price

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 4/27

9:45 pm-10:20 am

1 stop29h 35m

Sofia

Wed 5/6

6:55 pm-1:55 pm

1 stop26h 00m

$362

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 4/27

9:45 pm-10:20 am

1 stop29h 35m

Sofia

Wed 5/6

11:05 am-8:15 pm

1 stop16h 10m

$372

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 4/21

1:00 pm-12:10 pm

2 stops16h 10m

Sofia

Thu 5/7

8:00 am-1:55 pm

1 stop12h 55m

$399

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 4/21

1:00 pm-12:10 pm

2 stops16h 10m

Sofia

Wed 5/6

12:55 pm-6:45 pm

1 stop12h 50m

$402

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Mon 4/20

6:15 pm-2:00 pm

1 stop12h 45m

Sofia

Thu 4/30

7:00 am-12:25 pm

1 stop12h 25m

$410

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Wed 3/11

7:45 pm-2:05 pm

1 stop12h 20m

Sofia

Mon 3/23

7:00 am-12:25 pm

1 stop35h 25m

$412

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Sun 4/19

5:30 pm-11:00 pm

1 stop19h 30m

Sofia

Tue 4/28

6:10 am-1:10 pm

1 stop17h 00m

$491

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Mon 4/13

5:30 pm-11:00 pm

1 stop19h 30m

Sofia

Tue 4/28

6:10 am-1:10 pm

1 stop17h 00m

$515

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 4/7

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

Wed 4/15

9:35 am-9:40 am

1 stop32h 05m

$539

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 4/14

11:25 am-8:15 pm

1 stop24h 50m

Sofia

Thu 5/21

3:50 pm-9:40 am

1 stop25h 50m

$542

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 $516, 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 January instead. Flights to Sofia in January, while not as cheap as those in November, still average around $546.

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 $691 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 $567 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 40m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 40m

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 February 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
British Airways	PriceFrom $356	Free Cancellation	Rating 6.7 7,759 reviews	Search British Airways flights
KLM	PriceFrom $380	Free Cancellation	Rating 7.7 1,458 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 1,536 reviews	Search Air France flights
SWISS	PriceFrom $401	Free Cancellation	Rating 7.6 1,880 reviews	Search SWISS flights
United Airlines	PriceFrom $409	Free Cancellation	Rating 7.4 9,341 reviews	Search United Airlines flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,181 reviews	Search LOT flights
Lufthansa	PriceFrom $428	Free Cancellation	Rating 6.8 7,803 reviews	Search Lufthansa flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,151 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.