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

British Airways, United Airlines, and Turkish Airlines 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 41% of people opting to fly with this airline when traveling to Sofia. Keep in mind that there are 12 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 New York to Sofia takes 11h 05m on average. On the other hand, flying from Los Angeles to Sofia takes 14h 50m 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 August 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.

$226 Cheap Flights from the United States to Sofia in 2026

Discover deals from 900+ travel sites with momondo.

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.

10:35 pm - 1:25 am-

19h 50m

10:40 am - 3:10 pm-

35h 30m

$661Multiple Airlines

Wed, Sep 23 - Wed, Oct 7

11:00 pm - 1:35 am-

19h 35m

6:45 pm - 9:00 pm-

33h 15m

$666Multiple Airlines

Mon, Sep 14 - Tue, Sep 29

5:30 pm - 6:20 pm-

14h 50m

6:25 am - 1:05 pm-

16h 40m

$714Lufthansa

Tue, Nov 3 - Tue, Nov 17

5:30 pm - 10:55 pm-

19h 25m

6:25 am - 1:05 pm-

16h 40m

$714Lufthansa

Wed, Nov 4 - Wed, Nov 18

12:25 am - 8:50 am-

25h 25m

4:00 pm - 10:30 pm-

13h 30m

$724Turkish Airlines

Tue, Nov 10 - Tue, Nov 17

12:25 am - 8:55 pm-

13h 30m

9:40 am - 10:30 pm-

19h 50m

$724Turkish Airlines

Tue, Nov 10 - Tue, Nov 17

10:35 pm - 1:50 pm-

32h 15m

2:35 pm - 8:25 pm-

12h 50m

$728LOT

Tue, Nov 10 - Tue, Nov 17

10:35 pm - 5:50 pm-

12h 15m

6:35 pm - 8:25 pm-

32h 50m

$728LOT

Tue, Nov 3 - Tue, Nov 17

10:55 pm - 6:20 pm-

12h 25m

6:25 am - 8:05 pm-

20h 40m

$735United Airlines

Sun, Dec 6 - Thu, Dec 10

5:30 pm - 6:20 pm-

14h 50m

6:25 am - 1:05 pm-

16h 40m

$736United Airlines

Sun, Jan 31 - Thu, Feb 4

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Lufthansa flights from United States to Sofia

Our best Lufthansa deals on United States to Sofia flight tickets

Lufthansa

Nov 1

IAD10:55 pmWashington, D.C. Dulles Intl

17h 00m

1 stop

SOF10:55 pmSofia

Nov 4

SOF6:25 amSofia

16h 30m

1 stop

IAD3:55 pmWashington, D.C. Dulles Intl

$714

Lufthansa

Nov 3

SFO9:40 pmSan Francisco

15h 15m

1 stop

SOF10:55 pmSofia

Nov 17

SOF6:25 amSofia

16h 10m

1 stop

SFO12:35 pmSan Francisco

$724

Lufthansa

Dec 2

SFO9:40 pmSan Francisco

15h 15m

1 stop

SOF10:55 pmSofia

Dec 16

SOF2:00 pmSofia

15h 35m

1 stop

SFO7:35 pmSan Francisco

$725

SWISS flights from United States to Sofia

Our best SWISS deals on United States to Sofia flight tickets

SWISS

Aug 24

BOS5:10 pmBoston Logan Intl

12h 05m

1 stop

SOF12:15 pmSofia

Sep 7

SOF3:40 pmSofia

30h 30m

1 stop

BOS3:10 pmBoston Logan Intl

$873

SWISS

Aug 18

BOS5:10 pmBoston Logan Intl

10h 10m

1 stop

SOF10:20 amSofia

Sep 7

SOF3:40 pmSofia

30h 30m

1 stop

BOS3:10 pmBoston Logan Intl

$874

SWISS

Aug 19

BOS5:10 pmBoston Logan Intl

10h 10m

1 stop

SOF10:20 amSofia

Sep 7

SOF3:40 pmSofia

30h 30m

1 stop

BOS3:10 pmBoston Logan Intl

$881

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 9/23

10:35 pm-1:25 am

2 stops19h 50m

Sofia

Wed 10/7

10:40 am-3:10 pm

2 stops35h 30m

$661

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 9/14

11:00 pm-1:35 am

2 stops19h 35m

Sofia

Tue 9/29

6:45 pm-9:00 pm

2 stops33h 15m

$666

Quickest round-trip

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Tue 11/3

5:30 pm-6:20 pm

1 stop14h 50m

Sofia

Tue 11/17

6:25 am-1:05 pm

1 stop16h 40m

$714

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Wed 11/4

5:30 pm-10:55 pm

1 stop19h 25m

Sofia

Wed 11/18

6:25 am-1:05 pm

1 stop16h 40m

$714

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 11/10

12:25 am-8:50 am

1 stop25h 25m

Sofia

Tue 11/17

4:00 pm-10:30 pm

1 stop13h 30m

$724

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 11/10

12:25 am-8:55 pm

1 stop13h 30m

Sofia

Tue 11/17

9:40 am-10:30 pm

1 stop19h 50m

$724

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 11/10

10:35 pm-1:50 pm

1 stop32h 15m

Sofia

Tue 11/17

2:35 pm-8:25 pm

1 stop12h 50m

$728

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 11/3

10:35 pm-5:50 pm

1 stop12h 15m

Sofia

Tue 11/17

6:35 pm-8:25 pm

1 stop32h 50m

$728

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 12/6

10:55 pm-6:20 pm

1 stop12h 25m

Sofia

Thu 12/10

6:25 am-8:05 pm

1 stop20h 40m

$735

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Sun 1/31

5:30 pm-6:20 pm

1 stop14h 50m

Sofia

Thu 2/4

6:25 am-1:05 pm

1 stop16h 40m

$736

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 $596, 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 January instead. Flights to Sofia in January, while not as cheap as those in February, still average around $612.

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 $704 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 31% 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

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 August 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
KLM	PriceFrom $380	Free Cancellation	Rating 7.8 1,554 reviews	Search KLM flights
Austrian Airlines	PriceFrom $387	Free Cancellation	Rating 7.6 951 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 10,064 reviews	Search United Airlines flights
Lufthansa	PriceFrom $395	Free Cancellation	Rating 6.8 8,176 reviews	Search Lufthansa flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.5 1,637 reviews	Search Air France flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 2,025 reviews	Search SWISS flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.6 1,212 reviews	Search LOT flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,146 reviews	Search British Airways flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 3,023 reviews	Search JetBlue flights
Turkish Airlines	PriceFrom $514	Free Cancellation	Rating 7.4 4,467 reviews	Search Turkish Airlines 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.