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 25m on average. On the other hand, flying from New York to Sofia takes 10h 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 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?

Air Serbia, Air France, and United Airlines are the most popular carriers operating from 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 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.

$227 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

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Recent round-trip flight deals from the United States to Sofia

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1:55 pm - 11:50 am

BOS

SOF

14h 55m2 stops

7:55 am - 3:05 pm

SOF

BOS

13h 10m1 stop

$341Austrian Airlines

Tue, Mar 3 - Tue, Mar 17

8:40 pm - 10:45 pm

BOS

SOF

19h 05m1 stop

2:00 pm - 6:57 pm

SOF

BOS

35h 57m2 stops

$344Lufthansa

Mon, Jan 19 - Wed, Feb 4

2:20 pm - 1:15 pm

BOS

SOF

15h 55m2 stops

7:05 pm - 6:35 pm

SOF

BOS

30h 30m1 stop

$349Lufthansa

Mon, Jan 26 - Mon, Feb 9

6:25 pm - 11:50 am

BOS

SOF

10h 25m1 stop

7:55 am - 3:05 pm

SOF

BOS

13h 10m1 stop

$355Austrian Airlines

Tue, Mar 3 - Tue, Mar 17

8:04 pm - 6:10 pm

JFK

SOF

40h 06m2 stops

9:10 pm - 7:25 pm

SOF

JFK

29h 15m1 stop

$429British Airways

Sat, Mar 28 - Sun, Apr 5

5:30 pm - 1:15 pm

JFK

SOF

12h 45m1 stop

1:45 pm - 4:40 pm

SOF

JFK

32h 55m1 stop

$431United Airlines

Sat, Feb 28 - Mon, Mar 9

4:50 pm - 1:35 pm

JFK

SOF

37h 45m2 stops

1:45 pm - 4:40 pm

SOF

JFK

32h 55m1 stop

$433United Airlines

Sat, Mar 7 - Mon, Mar 16

4:00 pm - 2:05 pm

LGA

SOF

15h 05m2 stops

7:00 am - 9:42 pm

SOF

LGA

21h 42m2 stops

$435KLM

Thu, Jan 29 - Thu, Feb 12

8:18 pm - 4:20 pm

ORD

SOF

36h 02m2 stops

12:05 pm - 1:50 pm

SOF

ORD

33h 45m1 stop

$558British Airways

Sat, Jan 24 - Sat, Jan 31

2:17 pm - 2:05 pm

DAL

SOF

39h 48m2 stops

7:00 am - 10:29 pm

SOF

DAL

23h 29m2 stops

$606KLM

Wed, Jan 28 - Sun, Feb 1

Austrian Airlines flights from United States to Sofia

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

Austrian Airlines

Mar 3

BOS1:55 pmBoston Logan Intl

14h 55m

2 stops

SOF11:50 amSofia

Mar 17

SOF7:55 amSofia

13h 10m

1 stop

BOS3:05 pmBoston Logan Intl

$341

Find similar

Austrian Airlines

Mar 3

BOS6:25 pmBoston Logan Intl

10h 25m

1 stop

SOF11:50 amSofia

Mar 17

SOF7:55 amSofia

13h 10m

1 stop

BOS3:05 pmBoston Logan Intl

$355

Find similar

Austrian Airlines

Mar 3

BOS6:25 pmBoston Logan Intl

10h 25m

1 stop

SOF11:50 amSofia

Mar 17

SOF7:55 amSofia

13h 10m

1 stop

BOS3:05 pmBoston Logan Intl

$356

Find similar

Air France flights from United States to Sofia

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

Air France

Jan 12

EWR5:05 pmNewark

14h 00m

1 stop

SOF2:05 pmSofia

Jan 27

SOF7:10 amSofia

14h 45m

1 stop

EWR2:55 pmNewark

$366

Find similar

Air France

Jan 12

EWR5:05 pmNewark

14h 00m

1 stop

SOF2:05 pmSofia

Jan 27

SOF7:10 amSofia

23h 45m

2 stops

EWR11:55 pmNewark

$375

Find similar

Air France

Jan 13

BOS6:30 pmBoston Logan Intl

12h 25m

1 stop

SOF1:55 pmSofia

Jan 27

SOF7:10 amSofia

13h 30m

1 stop

BOS1:40 pmBoston Logan Intl

$395

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 3/3

1:55 pm-11:50 am

2 stops14h 55m

Sofia

Tue 3/17

7:55 am-3:05 pm

1 stop13h 10m

$341

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 1/19

8:40 pm-10:45 pm

1 stop19h 05m

Sofia

Wed 2/4

2:00 pm-6:57 pm

2 stops35h 57m

$344

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 1/26

2:20 pm-1:15 pm

2 stops15h 55m

Sofia

Mon 2/9

7:05 pm-6:35 pm

1 stop30h 30m

$349

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 3/3

6:25 pm-11:50 am

1 stop10h 25m

Sofia

Tue 3/17

7:55 am-3:05 pm

1 stop13h 10m

$355

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sat 3/28

8:04 pm-6:10 pm

2 stops40h 06m

Sofia

Sun 4/5

9:10 pm-7:25 pm

1 stop29h 15m

$429

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sat 2/28

5:30 pm-1:15 pm

1 stop12h 45m

Sofia

Mon 3/9

1:45 pm-4:40 pm

1 stop32h 55m

$431

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sat 3/7

4:50 pm-1:35 pm

2 stops37h 45m

Sofia

Mon 3/16

1:45 pm-4:40 pm

1 stop32h 55m

$433

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Thu 1/29

4:00 pm-2:05 pm

2 stops15h 05m

Sofia

Thu 2/12

7:00 am-9:42 pm

2 stops21h 42m

$435

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 1/24

8:18 pm-4:20 pm

2 stops36h 02m

Sofia

Sat 1/31

12:05 pm-1:50 pm

1 stop33h 45m

$558

DallasSofia

DAL - SOF

DALSOF

Dallas Love Field

Wed 1/28

2:17 pm-2:05 pm

2 stops39h 48m

Sofia

Sun 2/1

7:00 am-10:29 pm

2 stops23h 29m

$606

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 September. Flight prices, which tend to average around $587, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Sofia from United States during October instead. Flights to Sofia in October, while not as cheap as those in September, still average around $599.

What is the cheapest day to depart on your flight to Sofia?

According to our data, Monday is the cheapest day to fly to Sofia from United States. The lowest ticket price found for a Monday departure recently was $795. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from United States to Sofia on a Saturday will generally be more expensive and average around $1,032. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

At noon is the cheapest time of day to fly from United States to Sofia when you can find flight prices for as low as $618. Flying to Sofia at noon is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Sofia, so prices are often more expensive at around $969 per ticket.

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 week ahead of your departure date. In general, you can expect to find flights to Sofia for around $715 when searching week 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 $634 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 25m
Direct flights	None

The fastest flight from United States to Sofia takes 10h 25m

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
Austrian Airlines	PriceFrom $398	Free Cancellation	Rating 7.6 875 reviews	Search Austrian Airlines flights
SWISS	PriceFrom $401	Free Cancellation	Rating 7.5 1,803 reviews	Search SWISS flights
British Airways	PriceFrom $406	Free Cancellation	Rating 6.7 7,562 reviews	Search British Airways flights
KLM	PriceFrom $409	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights
Air France	PriceFrom $416	Free Cancellation	Rating 7.4 1,500 reviews	Search Air France flights
United Airlines	PriceFrom $428	Free Cancellation	Rating 7.4 9,066 reviews	Search United Airlines flights
LOT	PriceFrom $437	Free Cancellation	Rating 7.5 1,143 reviews	Search LOT flights
Lufthansa	PriceFrom $449	Free Cancellation	Rating 6.8 7,612 reviews	Search Lufthansa flights
JetBlue	PriceFrom $478	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,097 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.

An easier way to manage your Sofia trip

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Cheap flights from the United States to Sofia from $227

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Sofia departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from the United States to Sofia

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

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

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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

What is the cheapest month to fly to Sofia?

What is the cheapest day to depart on your flight to Sofia?

What is the cheapest time of day to depart on your flight to Sofia?

How far in advance should I book a flight to Sofia?

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.

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

Air Serbia, Air France, and United Airlines are the most popular carriers operating from United States to Sofia

What airlines fly to Sofia?

How long does it take to fly to Sofia?

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

Direct flights

When did momondo last update prices for flights from United States to Sofia Airport?

How many operators does momondo search for flights from United States to Sofia Airport?

How old do you have to be to fly from United States to Sofia Airport?

What documentation or ID do you need to fly to Sofia Airport?

Best airlines flying from United States to Sofia

Compare and see reviews for airlines that fly from United States to Sofia with momondo

Traveling to a place near Sofia?

Why use momondo?

Why should I use momondo to find a flight deal from United States to Sofia?

Can I find flights from United States to Sofia with flexible booking policies on momondo?

How can momondo help me find flights from United States to Sofia?

I’m not ready to book a flight from United States to Sofia right now. Can momondo alert me if prices change?

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo