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 38% 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.

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

Air Serbia and Turkish 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 August 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.

$169 Cheap Flights from the United States to Sofia in 2025

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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

3:15 pm - 5:50 pmBOS-SOF

19h 35m2 stops

3:30 pm - 3:25 pmSOF-BOS

30h 55m1 stop

$439

Find Deal

Mon, Sep 29 - Mon, Oct 13

5:30 am - 2:15 pmBOS-SOF

25h 45m2 stops

2:00 pm - 7:42 pmSOF-BOS

36h 42m2 stops

$440

Find Deal

Sun, Nov 30 - Sun, Dec 14

8:40 pm - 6:20 pmBOS-SOF

14h 40m1 stop

2:00 pm - 6:35 pmSOF-BOS

11h 35m1 stop

$441Lufthansa

Find Deal

Fri, Jan 30 - Fri, Feb 13

9:30 am - 12:00 pmBOS-SOF

19h 30m2 stops

1:55 pm - 6:32 pmSOF-BOS

34h 37m2 stops

$442United Airlines

Find Deal

Tue, Oct 21 - Mon, Oct 27

8:20 pm - 6:40 pmLGA-SOF

15h 20m2 stops

1:55 pm - 9:33 pmSOF-LGA

14h 38m2 stops

$443Lufthansa

Find Deal

Sun, Oct 19 - Mon, Nov 3

1:30 pm - 1:15 pmBOS-SOF

16h 45m2 stops

7:55 am - 2:05 pmSOF-BOS

13h 10m1 stop

$446United Airlines

Find Deal

Fri, Nov 28 - Fri, Dec 12

11:35 pm - 5:50 pmJFK-SOF

12h 15m1 stop

2:35 pm - 8:35 pmSOF-JFK

13h 00m1 stop

$453LOT

Find Deal

Thu, Oct 30 - Fri, Nov 7

12:30 am - 8:25 pmEWR-SOF

12h 55m1 stop

4:00 pm - 10:30 pmSOF-EWR

13h 30m1 stop

$504Turkish Airlines

Find Deal

Mon, Oct 20 - Tue, Nov 4

12:35 am - 8:25 pmJFK-SOF

12h 50m1 stop

9:25 am - 5:55 pmSOF-JFK

15h 30m1 stop

$504Turkish Airlines

Find Deal

Mon, Sep 29 - Tue, Oct 14

4:15 pm - 1:50 pmLAX-SOF

35h 35m1 stop

2:35 pm - 2:20 pmSOF-LAX

33h 45m1 stop

$623LOT

Find Deal

Fri, Nov 7 - Mon, Dec 1

Lufthansa flights from United States to Sofia

Our best Lufthansa deals on United States to Sofia flight tickets

Lufthansa

Jan 30

BOS8:40 pmBoston Logan Intl

14h 40m

1 stop

SOF6:20 pmSofia

Feb 13

SOF2:00 pmSofia

11h 35m

1 stop

BOS6:35 pmBoston Logan Intl

$441

Find similar

Lufthansa

Oct 19

LGA8:20 pmNew York LaGuardia

15h 20m

2 stops

SOF6:40 pmSofia

Nov 3

SOF1:55 pmSofia

14h 38m

2 stops

LGA9:33 pmNew York LaGuardia

$443

Find similar

Lufthansa

Dec 1

BOS8:40 pmBoston Logan Intl

14h 40m

1 stop

SOF6:20 pmSofia

Feb 28

SOF7:05 pmSofia

30h 30m

1 stop

BOS6:35 pmBoston Logan Intl

$451

Find similar

United Airlines flights from United States to Sofia

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

United Airlines

Oct 21

BOS9:30 amBoston Logan Intl

19h 30m

2 stops

SOF12:00 pmSofia

Oct 27

SOF1:55 pmSofia

34h 37m

2 stops

BOS6:32 pmBoston Logan Intl

$442

Find similar

United Airlines

Sep 8

BOS5:05 pmBoston Logan Intl

11h 55m

2 stops

SOF12:00 pmSofia

Sep 19

SOF6:15 amSofia

22h 10m

2 stops

BOS9:25 pmBoston Logan Intl

$445

Find similar

United Airlines

Nov 28

BOS1:30 pmBoston Logan Intl

16h 45m

2 stops

SOF1:15 pmSofia

Dec 12

SOF7:55 amSofia

13h 10m

1 stop

BOS2:05 pmBoston Logan Intl

$446

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Mon 9/29

3:15 pm-5:50 pm

2 stops19h 35m

Sofia

Mon 10/13

3:30 pm-3:25 pm

1 stop30h 55m

$439

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 11/30

5:30 am-2:15 pm

2 stops25h 45m

Sofia

Sun 12/14

2:00 pm-7:42 pm

2 stops36h 42m

$440

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Fri 1/30

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Fri 2/13

2:00 pm-6:35 pm

1 stop11h 35m

$441

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Tue 10/21

9:30 am-12:00 pm

2 stops19h 30m

Sofia

Mon 10/27

1:55 pm-6:32 pm

2 stops34h 37m

$442

New YorkSofia

LGA - SOF

LGASOF

New York LaGuardia

Sun 10/19

8:20 pm-6:40 pm

2 stops15h 20m

Sofia

Mon 11/3

1:55 pm-9:33 pm

2 stops14h 38m

$443

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Fri 11/28

1:30 pm-1:15 pm

2 stops16h 45m

Sofia

Fri 12/12

7:55 am-2:05 pm

1 stop13h 10m

$446

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Thu 10/30

11:35 pm-5:50 pm

1 stop12h 15m

Sofia

Fri 11/7

2:35 pm-8:35 pm

1 stop13h 00m

$453

NewarkSofia

EWR - SOF

EWRSOF

Newark

Mon 10/20

12:30 am-8:25 pm

1 stop12h 55m

Sofia

Tue 11/4

4:00 pm-10:30 pm

1 stop13h 30m

$504

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Mon 9/29

12:35 am-8:25 pm

1 stop12h 50m

Sofia

Tue 10/14

9:25 am-5:55 pm

1 stop15h 30m

$504

Los AngelesSofia

LAX - SOF

LAXSOF

Los Angeles

Fri 11/7

4:15 pm-1:50 pm

1 stop35h 35m

Sofia

Mon 12/1

2:35 pm-2:20 pm

1 stop33h 45m

$623

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 $619, 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 March instead. Flights to Sofia in March, while not as cheap as those in November, still average around $635.

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 weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $727 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 $638 on momondo.

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

You could potentially save up to 15% 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

Direct flights	None

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 August 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
SWISS	PriceFrom $401	Free Cancellation	Rating 7.6 1,717 reviews	Search SWISS flights
Air France	PriceFrom $416	Free Cancellation	Rating 7.4 1,472 reviews	Search Air France flights
United Airlines	PriceFrom $428	Free Cancellation	Rating 7.4 8,941 reviews	Search United Airlines flights
KLM	PriceFrom $432	Free Cancellation	Rating 7.8 1,382 reviews	Search KLM flights
LOT	PriceFrom $437	Free Cancellation	Rating 7.6 1,112 reviews	Search LOT flights
Austrian Airlines	PriceFrom $472	Free Cancellation	Rating 7.6 837 reviews	Search Austrian Airlines flights
Turkish Airlines	PriceFrom $503	Free Cancellation	Rating 7.3 3,953 reviews	Search Turkish Airlines flights
ITA Airways	PriceFrom $505	Free Cancellation	Rating 6.7 1,024 reviews	Search ITA Airways flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,327 reviews	Search British Airways flights
Lufthansa	PriceFrom $542	Free Cancellation	Rating 6.8 7,375 reviews	Search Lufthansa 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 $169

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 9/5. 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

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

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Lufthansa flights from United States to Sofia

Our best Lufthansa deals on United States to Sofia flight tickets

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Our best United Airlines 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 15% 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 and Turkish 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

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