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.

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

Lufthansa, United Airlines, and British Airways 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 11h 30m on average. On the other hand, flying from New York to Sofia takes 12h 20m 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 13 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.

$237 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.

9:40 pm - 10:20 am

BOS

SOF

29h 40m

1 stop

3:40 pm - 3:10 pm

SOF

BOS

30h 30m

1 stop

$438SWISS

Mon, Apr 27 - Mon, May 11

5:20 pm - 12:15 pm

BOS

SOF

11h 55m

1 stop

6:55 pm - 6:20 pm

SOF

BOS

30h 25m

2 stops

$439Multiple Airlines

Mon, Apr 27 - Mon, May 11

5:30 pm - 12:10 pm

JFK

SOF

11h 40m

1 stop

6:10 am - 3:00 pm

SOF

JFK

15h 50m

1 stop

$443Lufthansa

Tue, Apr 28 - Tue, May 12

5:30 pm - 12:10 pm

JFK

SOF

11h 40m

1 stop

2:10 pm - 8:05 pm

SOF

JFK

12h 55m

1 stop

$455Lufthansa

Tue, Apr 21 - Tue, Apr 28

2:49 pm - 12:10 pm

LGA

SOF

14h 21m

2 stops

6:10 am - 6:01 pm

SOF

LGA

18h 51m

2 stops

$499United Airlines

Tue, Apr 21 - Tue, Apr 28

10:29 am - 12:10 pm

LGA

SOF

18h 41m

2 stops

6:10 am - 6:11 pm

SOF

LGA

19h 01m

2 stops

$531United Airlines

Wed, Aug 12 - Wed, Sep 16

9:45 pm - 8:15 pm

IAD

SOF

15h 30m

1 stop

3:50 pm - 7:50 pm

SOF

IAD

35h 00m

1 stop

$538Turkish Airlines

Wed, Apr 8 - Wed, Apr 22

9:45 pm - 8:15 pm

IAD

SOF

15h 30m

1 stop

3:50 pm - 7:50 pm

SOF

IAD

35h 00m

1 stop

$548Turkish Airlines

Tue, Sep 1 - Tue, Sep 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

$768KLM

Tue, Apr 21 - Tue, Apr 28

1:10 pm - 2:00 pm

MDW

SOF

16h 50m

2 stops

7:00 am - 10:28 pm

SOF

MDW

23h 28m

2 stops

$818KLM

Wed, Apr 8 - Thu, Apr 30

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Apr 27

BOS9:40 pmBoston Logan Intl

29h 40m

1 stop

SOF10:20 amSofia

May 11

SOF3:40 pmSofia

30h 30m

1 stop

BOS3:10 pmBoston Logan Intl

$438

SWISS

May 5

BOS9:40 pmBoston Logan Intl

29h 40m

1 stop

SOF10:20 amSofia

May 12

SOF1:05 pmSofia

13h 50m

1 stop

BOS7:55 pmBoston Logan Intl

$461

SWISS

Apr 22

BOS5:20 pmBoston Logan Intl

10h 00m

1 stop

SOF10:20 amSofia

Apr 29

SOF11:05 amSofia

15h 50m

1 stop

BOS7:55 pmBoston Logan Intl

$472

Lufthansa flights from United States to Sofia

Our best Lufthansa deals on United States to Sofia flight tickets

Lufthansa

Apr 28

JFK5:30 pmNew York John F Kennedy Intl

11h 40m

1 stop

SOF12:10 pmSofia

May 12

SOF6:10 amSofia

15h 50m

1 stop

JFK3:00 pmNew York John F Kennedy Intl

$443

Lufthansa

Apr 21

JFK5:30 pmNew York John F Kennedy Intl

11h 40m

1 stop

SOF12:10 pmSofia

Apr 28

SOF2:10 pmSofia

12h 55m

1 stop

JFK8:05 pmNew York John F Kennedy Intl

$455

Lufthansa

Apr 28

BOS8:05 pmBoston Logan Intl

14h 55m

2 stops

SOF6:00 pmSofia

May 12

SOF12:55 pmSofia

11h 45m

1 stop

BOS5:40 pmBoston Logan Intl

$460

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 4/27

9:40 pm-10:20 am

1 stop29h 40m

Sofia

Mon 5/11

3:40 pm-3:10 pm

1 stop30h 30m

$438

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 4/27

5:20 pm-12:15 pm

1 stop11h 55m

Sofia

Mon 5/11

6:55 pm-6:20 pm

2 stops30h 25m

$439

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 5/12

6:10 am-3:00 pm

1 stop15h 50m

$443

Quickest round-trip

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Tue 4/21

5:30 pm-12:10 pm

1 stop11h 40m

Sofia

Tue 4/28

2:10 pm-8:05 pm

1 stop12h 55m

$455

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Tue 4/21

2:49 pm-12:10 pm

2 stops14h 21m

Sofia

Tue 4/28

6:10 am-6:01 pm

2 stops18h 51m

$499

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Wed 8/12

10:29 am-12:10 pm

2 stops18h 41m

Sofia

Wed 9/16

6:10 am-6:11 pm

2 stops19h 01m

$531

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 4/8

9:45 pm-8:15 pm

1 stop15h 30m

Sofia

Wed 4/22

3:50 pm-7:50 pm

1 stop35h 00m

$538

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 9/1

9:45 pm-8:15 pm

1 stop15h 30m

Sofia

Tue 9/22

3:50 pm-7:50 pm

1 stop35h 00m

$548

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Tue 4/21

1:24 pm-2:00 pm

2 stops16h 36m

Sofia

Tue 4/28

7:00 am-6:36 pm

2 stops19h 36m

$768

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Wed 4/8

1:10 pm-2:00 pm

2 stops16h 50m

Sofia

Thu 4/30

7:00 am-10:28 pm

2 stops23h 28m

$818

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 $672 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 55m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 55m

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 13 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 1,897 reviews	Search SWISS flights
British Airways	PriceFrom $356	Free Cancellation	Rating 6.7 7,784 reviews	Search British Airways flights
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,471 reviews	Search KLM flights
Austrian Airlines	PriceFrom $394	Free Cancellation	Rating 7.6 901 reviews	Search Austrian Airlines flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.4 1,544 reviews	Search Air France flights
United Airlines	PriceFrom $409	Free Cancellation	Rating 7.4 9,421 reviews	Search United Airlines flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,183 reviews	Search LOT flights
Lufthansa	PriceFrom $421	Free Cancellation	Rating 6.8 7,846 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $455	Free Cancellation	Rating 7.3 4,255 reviews	Search Turkish Airlines flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,904 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.