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 43% 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.

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

British Airways, KLM, and United Airlines 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 10h 15m 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 December 2025, 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.

$197 Cheap Flights from the United States to Sofia in 2025/26

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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.

2:20 pm - 1:15 pm

BOS

SOF

15h 55m2 stops

2:00 pm - 6:35 pm

SOF

BOS

11h 35m1 stop

$337Lufthansa

Tue, Jan 27 - Tue, Feb 10

6:25 pm - 11:50 am

BOS

SOF

10h 25m1 stop

7:55 am - 5:21 pm

SOF

BOS

16h 26m2 stops

$344Austrian Airlines

Tue, Feb 17 - Tue, Mar 3

10:35 pm - 5:50 pm

EWR

SOF

12h 15m1 stop

2:35 pm - 9:00 pm

SOF

EWR

13h 25m1 stop

$377LOT

Tue, Feb 10 - Wed, Feb 25

10:35 pm - 1:50 pm

JFK

SOF

32h 15m1 stop

6:35 pm - 8:35 pm

SOF

JFK

33h 00m1 stop

$464LOT

Thu, Feb 5 - Mon, Feb 9

9:00 pm - 1:15 pm

JFK

SOF

33h 15m2 stops

6:05 am - 3:40 pm

SOF

JFK

16h 35m1 stop

$466United Airlines

Thu, Jan 15 - Thu, Jan 29

11:30 am - 10:45 pm

LGA

SOF

28h 15m2 stops

1:45 pm - 7:03 pm

SOF

LGA

36h 18m2 stops

$469United Airlines

Thu, Feb 5 - Mon, Feb 9

5:40 pm - 2:00 pm

IAD

SOF

13h 20m1 stop

7:00 am - 3:35 pm

SOF

IAD

15h 35m1 stop

$520KLM

Tue, Apr 28 - Tue, May 12

9:15 pm - 8:45 am

IAD

SOF

28h 30m1 stop

9:35 am - 7:20 pm

SOF

IAD

16h 45m1 stop

$530Turkish Airlines

Tue, Jan 27 - Tue, Feb 10

5:30 pm - 2:00 pm

SEA

SOF

34h 30m1 stop

7:00 am - 11:45 am

SOF

SEA

14h 45m1 stop

$531KLM

Wed, Apr 1 - Wed, Apr 8

9:15 pm - 8:50 pm

IAD

SOF

16h 35m1 stop

9:35 am - 12:45 pm

SOF

IAD

33h 10m1 stop

$535Turkish Airlines

Sun, Mar 1 - Fri, Mar 13

Austrian Airlines flights from United States to Sofia

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

Austrian Airlines

Feb 17

BOS6:25 pmBoston Logan Intl

10h 25m

1 stop

SOF11:50 amSofia

Mar 3

SOF7:55 amSofia

16h 26m

2 stops

BOS5:21 pmBoston Logan Intl

$344

Find similar

Austrian Airlines

Jan 18

EWR5:55 pmNewark

10h 55m

1 stop

SOF11:50 amSofia

Feb 2

SOF6:45 pmSofia

26h 10m

1 stop

EWR1:55 pmNewark

$354

Find similar

Austrian Airlines

Jan 11

EWR8:25 amNewark

32h 30m

2 stops

SOF11:55 pmSofia

Jan 26

SOF6:45 pmSofia

26h 10m

1 stop

EWR1:55 pmNewark

$358

Find similar

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Apr 28

EWR9:45 pmNewark

29h 35m

1 stop

SOF10:20 amSofia

May 12

SOF1:05 pmSofia

14h 10m

1 stop

EWR8:15 pmNewark

$381

Find similar

SWISS

Feb 8

EWR10:00 pmNewark

32h 15m

2 stops

SOF1:15 pmSofia

Feb 23

SOF3:00 pmSofia

29h 55m

1 stop

EWR1:55 pmNewark

$412

Find similar

SWISS

Jan 27

EWR10:40 pmNewark

33h 35m

2 stops

SOF3:15 pmSofia

Feb 10

SOF2:00 pmSofia

30h 55m

2 stops

EWR1:55 pmNewark

$431

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 1/27

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Tue 2/10

2:00 pm-6:35 pm

1 stop11h 35m

$337

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 2/17

6:25 pm-11:50 am

1 stop10h 25m

Sofia

Tue 3/3

7:55 am-5:21 pm

2 stops16h 26m

$344

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 2/10

10:35 pm-5:50 pm

1 stop12h 15m

Sofia

Wed 2/25

2:35 pm-9:00 pm

1 stop13h 25m

$377

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Thu 2/5

10:35 pm-1:50 pm

1 stop32h 15m

Sofia

Mon 2/9

6:35 pm-8:35 pm

1 stop33h 00m

$464

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Thu 1/15

9:00 pm-1:15 pm

2 stops33h 15m

Sofia

Thu 1/29

6:05 am-3:40 pm

1 stop16h 35m

$466

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Thu 2/5

11:30 am-10:45 pm

2 stops28h 15m

Sofia

Mon 2/9

1:45 pm-7:03 pm

2 stops36h 18m

$469

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 4/28

5:40 pm-2:00 pm

1 stop13h 20m

Sofia

Tue 5/12

7:00 am-3:35 pm

1 stop15h 35m

$520

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 1/27

9:15 pm-8:45 am

1 stop28h 30m

Sofia

Tue 2/10

9:35 am-7:20 pm

1 stop16h 45m

$530

SeattleSofia

SEA - SOF

SEASOF

Seattle/Tacoma Intl

Wed 4/1

5:30 pm-2:00 pm

1 stop34h 30m

Sofia

Wed 4/8

7:00 am-11:45 am

1 stop14h 45m

$531

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 3/1

9:15 pm-8:50 pm

1 stop16h 35m

Sofia

Fri 3/13

9:35 am-12:45 pm

1 stop33h 10m

$535

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 September instead. Flights to Sofia in September, while not as cheap as those in November, still average around $587.

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 $707 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 $637 on momondo.

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

You could potentially save up to 32% 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.

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 December 2025, 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 7,616 reviews	Search British Airways flights
KLM	PriceFrom $380	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
Austrian Airlines	PriceFrom $398	Free Cancellation	Rating 7.6 884 reviews	Search Austrian Airlines flights
SWISS	PriceFrom $401	Free Cancellation	Rating 7.5 1,829 reviews	Search SWISS flights
Air France	PriceFrom $416	Free Cancellation	Rating 7.4 1,515 reviews	Search Air France flights
United Airlines	PriceFrom $428	Free Cancellation	Rating 7.4 9,113 reviews	Search United Airlines flights
LOT	PriceFrom $437	Free Cancellation	Rating 7.5 1,153 reviews	Search LOT flights
Lufthansa	PriceFrom $449	Free Cancellation	Rating 6.8 7,658 reviews	Search Lufthansa flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,901 reviews	Search JetBlue flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,114 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.