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

Lufthansa, KLM, and Austrian 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 New York to Sofia takes 10h 35m on average. On the other hand, flying from Boston to Sofia takes 13h 40m 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 40% 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.

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 June 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.

$224 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.

9:35 pm - 9:45 am

MIA

SOF

29h 10m

2 stops

11:25 pm - 8:00 pm

SOF

MIA

27h 35m

1 stop

$624Multiple Airlines

Thu, Oct 8 - Tue, Oct 20

9:35 pm - 9:45 am

MIA

SOF

29h 10m

2 stops

11:25 pm - 8:00 pm

SOF

MIA

27h 35m

1 stop

$629Multiple Airlines

Tue, Oct 6 - Tue, Oct 20

9:20 pm - 3:10 pm

IAD

SOF

34h 50m

1 stop

9:45 pm - 11:45 am

SOF

IAD

21h 00m

1 stop

$740Turkish Airlines

Mon, Nov 23 - Mon, Nov 30

9:45 pm - 8:20 pm

IAD

SOF

15h 35m

1 stop

9:10 pm - 11:35 am

SOF

IAD

21h 25m

1 stop

$743Turkish Airlines

Mon, Sep 14 - Mon, Sep 28

3:34 pm - 1:15 pm

IAD

SOF

15h 41m

2 stops

6:25 am - 5:32 pm

SOF

IAD

18h 07m

2 stops

$750United Airlines

Tue, Oct 27 - Tue, Nov 10

3:34 pm - 1:15 pm

IAD

SOF

14h 41m

2 stops

2:05 pm - 12:14 am

SOF

IAD

17h 09m

2 stops

$751United Airlines

Tue, Nov 24 - Tue, Dec 8

1:00 pm - 2:05 pm

IAD

SOF

18h 05m

2 stops

7:00 am - 7:10 pm

SOF

IAD

19h 10m

2 stops

$753KLM

Sun, Nov 1 - Tue, Nov 10

10:40 pm - 10:45 pm

SFO

SOF

15h 05m

1 stop

6:25 am - 12:35 pm

SOF

SFO

16h 10m

1 stop

$825Lufthansa

Sat, Oct 24 - Sat, Nov 7

10:30 pm - 10:40 pm

ORD

SOF

16h 10m

1 stop

7:00 pm - 12:55 pm

SOF

ORD

25h 55m

1 stop

$848Lufthansa

Mon, Jul 27 - Wed, Aug 12

1:27 pm - 2:00 pm

MDW

SOF

16h 33m

2 stops

7:00 am - 4:57 pm

SOF

MDW

17h 57m

2 stops

$851KLM

Tue, Aug 25 - Thu, Sep 10

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Air Canada flights from United States to Sofia

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

Air Canada

Oct 21

LGA6:30 amNew York LaGuardia

29h 10m

2 stops

SOF6:40 pmSofia

Nov 4

SOF2:00 pmSofia

14h 31m

2 stops

LGA9:31 pmNew York LaGuardia

$755

Air Canada

Nov 11

LGA10:35 amNew York LaGuardia

19h 40m

2 stops

SOF1:15 pmSofia

Nov 18

SOF6:25 amSofia

17h 26m

2 stops

LGA4:51 pmNew York LaGuardia

$763

Air Canada

Oct 21

LGA2:30 pmNew York LaGuardia

14h 40m

2 stops

SOF12:10 pmSofia

Nov 4

SOF6:25 amSofia

15h 17m

2 stops

LGA2:42 pmNew York LaGuardia

$769

Turkish Airlines flights from United States to Sofia

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

Turkish Airlines

Nov 11

JFK12:50 pmNew York John F Kennedy Intl

25h 05m

1 stop

SOF8:55 pmSofia

Nov 18

SOF9:40 amSofia

32h 15m

1 stop

JFK10:55 amNew York John F Kennedy Intl

$718

Turkish Airlines

Nov 23

IAD9:20 pmWashington, D.C. Dulles Intl

34h 50m

1 stop

SOF3:10 pmSofia

Nov 30

SOF9:45 pmSofia

21h 00m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$740

Turkish Airlines

Sep 14

IAD9:45 pmWashington, D.C. Dulles Intl

15h 35m

1 stop

SOF8:20 pmSofia

Sep 28

SOF9:10 pmSofia

21h 25m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$743

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 10/8

9:35 pm-9:45 am

2 stops29h 10m

Sofia

Tue 10/20

11:25 pm-8:00 pm

1 stop27h 35m

$624

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 10/6

9:35 pm-9:45 am

2 stops29h 10m

Sofia

Tue 10/20

11:25 pm-8:00 pm

1 stop27h 35m

$629

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 11/23

9:20 pm-3:10 pm

1 stop34h 50m

Sofia

Mon 11/30

9:45 pm-11:45 am

1 stop21h 00m

$740

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Mon 9/14

9:45 pm-8:20 pm

1 stop15h 35m

Sofia

Mon 9/28

9:10 pm-11:35 am

1 stop21h 25m

$743

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 10/27

3:34 pm-1:15 pm

2 stops15h 41m

Sofia

Tue 11/10

6:25 am-5:32 pm

2 stops18h 07m

$750

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Tue 11/24

3:34 pm-1:15 pm

2 stops14h 41m

Sofia

Tue 12/8

2:05 pm-12:14 am

2 stops17h 09m

$751

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Sun 11/1

1:00 pm-2:05 pm

2 stops18h 05m

Sofia

Tue 11/10

7:00 am-7:10 pm

2 stops19h 10m

$753

Quickest round-trip

San FranciscoSofia

SFO - SOF

SFOSOF

San Francisco

Sat 10/24

10:40 pm-10:45 pm

1 stop15h 05m

Sofia

Sat 11/7

6:25 am-12:35 pm

1 stop16h 10m

$825

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 7/27

10:30 pm-10:40 pm

1 stop16h 10m

Sofia

Wed 8/12

7:00 pm-12:55 pm

1 stop25h 55m

$848

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Tue 8/25

1:27 pm-2:00 pm

2 stops16h 33m

Sofia

Thu 9/10

7:00 am-4:57 pm

2 stops17h 57m

$851

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 April. Flight prices, which tend to average around $666, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Sofia from United States during March instead. Flights to Sofia in March, while not as cheap as those in April, still average around $686.

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 $693 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 35% 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 35m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 35m

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

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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 June 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
Austrian Airlines	PriceFrom $387	Free Cancellation	Rating 7.6 936 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $394	Free Cancellation	Rating 7.4 9,899 reviews	Search United Airlines flights
Lufthansa	PriceFrom $395	Free Cancellation	Rating 6.8 8,104 reviews	Search Lufthansa flights
Air France	PriceFrom $396	Free Cancellation	Rating 7.5 1,614 reviews	Search Air France flights
KLM	PriceFrom $403	Free Cancellation	Rating 7.8 1,531 reviews	Search KLM flights
SWISS	PriceFrom $410	Free Cancellation	Rating 7.5 1,976 reviews	Search SWISS flights
LOT	PriceFrom $413	Free Cancellation	Rating 7.5 1,207 reviews	Search LOT flights
British Airways	PriceFrom $421	Free Cancellation	Rating 6.7 8,077 reviews	Search British Airways flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.1 3,014 reviews	Search JetBlue flights
ITA Airways	PriceFrom $511	Free Cancellation	Rating 6.7 1,267 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.