Which airlines fly to Sofia?

Lufthansa, Turkish Airlines, United Airlines and LOT are the most popular airlines that fly from United States to Sofia on a routine basis, according to our data. You should be able to find flights to Sofia with these airlines and other airlines flying from United States.

7 KLM flights head to Sofia on average each week. Most will be flying from Amsterdam Schiphol to Sofia, the most popular route that KLM operates to Sofia. Prices vary based on when and where you fly from - the cheapest KLM flight to Sofia found in the past 3 days on momondo was $430, departing from Atlanta Hartsfield-Jackson. KLM is the most popular choice on momondo for this route and has been scored 7.7/10 by 1,399 of our users.

SWISS Flights to Sofia

SWISS (7.6/10, 1,766 reviews) is also a popular choice for flights to Sofia, with deals from as low as $401 from Boston Logan Intl, round-trip. With 3 SWISS flights to Sofia on average each week, prices can vary significantly by origin and availability.

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 Los Angeles to Sofia takes 14h 10m on average. On the other hand, flying from Miami to Sofia takes 14h 35m 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.

$144 Cheap Flights to Sofia in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United States to Sofia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:01 pm - 11:50 amEWR-SOF

12h 49m2 stops

7:55 am - 1:55 pmSOF-EWR

13h 00m1 stop

$336Austrian Airlines

Find Deal

Tue, Jan 6 - Tue, Jan 20

5:00 pm - 11:50 amEWR-SOF

12h 50m2 stops

7:55 am - 2:55 pmSOF-EWR

13h 00m1 stop

$339Austrian Airlines

Find Deal

Tue, Mar 10 - Tue, Mar 24

8:40 pm - 6:20 pmBOS-SOF

14h 40m1 stop

6:05 am - 1:25 pmSOF-BOS

14h 20m2 stops

$363Lufthansa

Find Deal

Sun, Nov 16 - Fri, Dec 5

5:20 pm - 1:50 pmBOS-SOF

14h 30m1 stop

2:00 pm - 6:35 pmSOF-BOS

11h 35m1 stop

$373Lufthansa

Find Deal

Wed, Oct 29 - Wed, Nov 12

5:25 pm - 12:00 pmEWR-SOF

11h 35m1 stop

6:05 am - 12:15 pmSOF-EWR

13h 10m1 stop

$393United Airlines

Find Deal

Wed, Oct 22 - Wed, Nov 5

3:03 pm - 6:20 pmEWR-SOF

20h 17m2 stops

7:55 am - 1:55 pmSOF-EWR

13h 00m1 stop

$397United Airlines

Find Deal

Wed, Nov 12 - Fri, Nov 21

7:25 pm - 2:00 pmJFK-SOF

11h 35m1 stop

7:00 am - 2:10 pmSOF-JFK

13h 10m1 stop

$435KLM

Find Deal

Sun, Oct 19 - Wed, Oct 29

9:15 pm - 3:10 pmIAD-SOF

34h 55m1 stop

9:40 pm - 7:20 pmSOF-IAD

28h 40m1 stop

$503Turkish Airlines

Find Deal

Wed, Nov 5 - Wed, Nov 12

1:30 pm - 8:45 amIAD-SOF

12h 15m1 stop

9:40 pm - 7:20 pmSOF-IAD

28h 40m1 stop

$512Turkish Airlines

Find Deal

Thu, Nov 20 - Tue, Dec 2

4:50 pm - 2:05 pmMIA-SOF

14h 15m1 stop

7:00 am - 2:50 pmSOF-MIA

14h 50m1 stop

$535KLM

Find Deal

Thu, Nov 27 - Thu, Dec 11

Fly from

Route

Depart

Return

Price

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 1/6

4:01 pm-11:50 am

2 stops12h 49m

Sofia

Tue 1/20

7:55 am-1:55 pm

1 stop13h 00m

$336

NewarkSofia

EWR - SOF

EWRSOF

Newark

Tue 3/10

5:00 pm-11:50 am

2 stops12h 50m

Sofia

Tue 3/24

7:55 am-2:55 pm

1 stop13h 00m

$339

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Sun 11/16

8:40 pm-6:20 pm

1 stop14h 40m

Sofia

Fri 12/5

6:05 am-1:25 pm

2 stops14h 20m

$363

BostonSofia

BOS - SOF

BOSSOF

Boston Logan Intl

Wed 10/29

5:20 pm-1:50 pm

1 stop14h 30m

Sofia

Wed 11/12

2:00 pm-6:35 pm

1 stop11h 35m

$373

NewarkSofia

EWR - SOF

EWRSOF

Newark

Wed 10/22

5:25 pm-12:00 pm

1 stop11h 35m

Sofia

Wed 11/5

6:05 am-12:15 pm

1 stop13h 10m

$393

NewarkSofia

EWR - SOF

EWRSOF

Newark

Wed 11/12

3:03 pm-6:20 pm

2 stops20h 17m

Sofia

Fri 11/21

7:55 am-1:55 pm

1 stop13h 00m

$397

New YorkSofia

JFK - SOF

JFKSOF

New York John F Kennedy Intl

Sun 10/19

7:25 pm-2:00 pm

1 stop11h 35m

Sofia

Wed 10/29

7:00 am-2:10 pm

1 stop13h 10m

$435

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Wed 11/5

9:15 pm-3:10 pm

1 stop34h 55m

Sofia

Wed 11/12

9:40 pm-7:20 pm

1 stop28h 40m

$503

Washington, D.C.Sofia

IAD - SOF

IADSOF

Washington, D.C. Dulles Intl

Thu 11/20

1:30 pm-8:45 am

1 stop12h 15m

Sofia

Tue 12/2

9:40 pm-7:20 pm

1 stop28h 40m

$512

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 11/27

4:50 pm-2:05 pm

1 stop14h 15m

Sofia

Thu 12/11

7:00 am-2:50 pm

1 stop14h 50m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Sofia flights insights and trends

Explore insights for your Sofia flight to craft the best travel plan

Prices

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 March instead. Flights to Sofia in March, while not as cheap as those in September, 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 week ahead of your departure date. In general, you can expect to find flights to Sofia for around $717 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 $635 on momondo.

Cheapest flights to Sofia

Find the cheapest flights to Sofia from your nearest city or airport

Find flights from Los Angeles to Sofia

CHEAPEST MONTH TO FLY TO SOFIA FROM LOS ANGELES	February	21% cheaper	Flying from Los Angeles to Sofia costs on average just $653 in February
MOST EXPENSIVE MONTH TO FLY TO SOFIA FROM LOS ANGELES	June	59% more expensive	It costs about $1,301 for flights to Sofia from Los Angeles in June
MOST POPULAR MONTH TO FLY TO SOFIA FROM LOS ANGELES	June	434% more users visited	More momondo users searched in flights to Sofia from Los Angeles in June than any other month

Cheap Sofia flight deals and tips

Summary info about Sofia flight prices, duration and airlines

Best One-Way Price	$144
Best Round-Trip Price	$336
Fastest flight time	12h 05m
Popular in	December

The best one-way flight price to Sofia from United States in the last 72 hours is $144 (New York John F Kennedy Intl to Sofia).

Search Deals

The best round-trip flight price to Sofia from United States in the last 72 hours is $336 (Newark to Sofia).

Search Deals

The fastest flight to Sofia from United States takes 12h 05m (New York John F Kennedy Intl to Sofia).

Search Deals

December has the highest demand for flights to Sofia, with a 5% price increase on average.

Search Deals

Frequently asked questions about flying to Sofia

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

The best time to book a flight to Sofia from United States is 57 days out, which is when prices tend to be around $726. In the past 72 hours, momondo users found flights from United States to Sofia for as low as $516.

Is there an alternative airport near Sofia?

Plovdiv Airport can be an alternative airport used for travel to Sofia.

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

Prices for flights to Sofia Airport refresh daily.

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

The number of operators available for flights to Sofia Airport is 33 as of October 2025.

How old do you have to be to fly to Sofia Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel 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.

Bansko

Borovets

Velingrad

Sandanski

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Sofia. Millions of users trust and use momondo every year so you are in good company.

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

Flights to Sofia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to Sofia?

Once you have performed a search for flights to Sofia, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Sofia, momondo offers a useful price alert feature which will track prices for flights to Sofia and alert you when they change.