What is the cheapest airline that flies from Sofia to Philadelphia?

British Airways is the most popular carrier operating from Sofia to Philadelphia

What airlines fly to Philadelphia?

Lufthansa, Turkish Airlines and LOT are the top three most popular airlines that fly to Philadelphia from Sofia according to our data. Lufthansa is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 7 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Sofia Airport to Philadelphia Airport are refreshed on a daily basis.

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

There are 2 operators available for flights from Sofia Airport to Philadelphia Airport as of April 2026.

How old do you have to be to fly from Sofia Airport to Philadelphia 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 Sofia Airport to Philadelphia Airport.

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

The necessary travel and health documents for your Philadelphia 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.

$515 Cheap Flights from Sofia to Philadelphia in 2026

Q: What is the typical price of a round-trip flight between Sofia and Philadelphia?

Prices are currently low for flights on this route. Typical prices usually range from $1,023 to $728. The lowest price recently found on this route was $784.

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Find the cheapest flights from Sofia to Philadelphia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 4:05 pm

SOF

PHL

16h 55m

1 stop

3:10 pm - 11:15 pm

PHL

SOF

25h 05m

2 stops

$784United Airlines

Tue, Jun 16 - Wed, Jul 15

6:10 am - 4:05 pm

SOF

PHL

16h 55m

1 stop

3:10 pm - 10:50 pm

PHL

SOF

24h 40m

2 stops

$785United Airlines

Tue, Jun 16 - Sat, Jul 18

6:30 am - 4:05 pm

SOF

PHL

16h 35m

1 stop

5:40 pm - 10:40 pm

PHL

SOF

22h 00m

1 stop

$786United Airlines

Thu, Apr 23 - Thu, Apr 30

1:50 pm - 2:49 pm

SOF

PHL

31h 59m

2 stops

3:10 pm - 11:15 pm

PHL

SOF

25h 05m

2 stops

$788United Airlines

Wed, Jun 17 - Tue, Jul 21

2:10 pm - 2:49 pm

SOF

PHL

31h 39m

2 stops

7:45 pm - 10:50 pm

PHL

SOF

20h 05m

2 stops

$789United Airlines

Fri, Jun 19 - Sat, Jul 18

6:10 am - 6:55 pm

SOF

PHL

19h 45m

2 stops

3:10 pm - 12:10 pm

PHL

SOF

14h 00m

2 stops

$790United Airlines

Tue, Jun 16 - Sun, Jul 19

6:20 am - 2:49 pm

SOF

PHL

39h 29m

2 stops

3:25 pm - 10:55 am

PHL

SOF

36h 30m

2 stops

$793Air Canada

Sun, Jun 21 - Sun, Jul 19

6:20 am - 2:49 pm

SOF

PHL

15h 29m

2 stops

7:45 pm - 10:50 pm

PHL

SOF

20h 05m

2 stops

$794United Airlines

Sat, Jun 20 - Sat, Jul 18

6:30 am - 2:46 pm

SOF

PHL

15h 16m

2 stops

10:33 am - 12:10 pm

PHL

SOF

18h 37m

2 stops

$801United Airlines

Thu, Apr 23 - Wed, Apr 29

12:55 pm - 11:44 pm

SOF

PHL

17h 49m

2 stops

3:10 pm - 12:10 pm

PHL

SOF

14h 00m

2 stops

$803United Airlines

Mon, Jun 15 - Sun, Jul 19

United Airlines flights from Sofia to Philadelphia

Our best United Airlines deals on Sofia to Philadelphia flight tickets

United Airlines

Apr 23

SOF6:30 amSofia

16h 35m

1 stop

PHL4:05 pmPhiladelphia

Apr 30

PHL5:40 pmPhiladelphia

22h 00m

1 stop

SOF10:40 pmSofia

$786

United Airlines

Apr 23

SOF6:30 amSofia

16h 35m

1 stop

PHL4:05 pmPhiladelphia

Apr 30

PHL7:45 pmPhiladelphia

15h 55m

2 stops

SOF6:40 pmSofia

$790

United Airlines

Apr 23

SOF6:30 amSofia

15h 16m

2 stops

PHL2:46 pmPhiladelphia

Apr 30

PHL7:45 pmPhiladelphia

15h 55m

2 stops

SOF6:40 pmSofia

$793

Austrian Airlines flights from Sofia to Philadelphia

Our best Austrian Airlines deals on Sofia to Philadelphia flight tickets

Austrian Airlines

Aug 2

SOF6:55 pmSofia

28h 10m

2 stops

PHL4:05 pmPhiladelphia

Oct 5

PHL10:35 amPhiladelphia

18h 05m

2 stops

SOF11:40 amSofia

$918

Austrian Airlines

Aug 2

SOF6:55 pmSofia

28h 10m

2 stops

PHL4:05 pmPhiladelphia

Oct 5

PHL10:35 amPhiladelphia

18h 05m

2 stops

SOF11:40 amSofia

$926

Austrian Airlines

Aug 2

SOF6:55 pmSofia

28h 10m

2 stops

PHL4:05 pmPhiladelphia

Sep 6

PHL5:40 pmPhiladelphia

14h 40m

2 stops

SOF3:20 pmSofia

$957

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Tue 6/16

6:10 am-4:05 pm

1 stop16h 55m

Philadelphia

Wed 7/15

3:10 pm-11:15 pm

2 stops25h 05m

$784

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Tue 6/16

6:10 am-4:05 pm

1 stop16h 55m

Philadelphia

Sat 7/18

3:10 pm-10:50 pm

2 stops24h 40m

$785

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 4/23

6:30 am-4:05 pm

1 stop16h 35m

Philadelphia

Thu 4/30

5:40 pm-10:40 pm

1 stop22h 00m

$786

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Wed 6/17

1:50 pm-2:49 pm

2 stops31h 59m

Philadelphia

Tue 7/21

3:10 pm-11:15 pm

2 stops25h 05m

$788

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Fri 6/19

2:10 pm-2:49 pm

2 stops31h 39m

Philadelphia

Sat 7/18

7:45 pm-10:50 pm

2 stops20h 05m

$789

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Tue 6/16

6:10 am-6:55 pm

2 stops19h 45m

Philadelphia

Sun 7/19

3:10 pm-12:10 pm

2 stops14h 00m

$790

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Sun 6/21

6:20 am-2:49 pm

2 stops39h 29m

Philadelphia

Sun 7/19

3:25 pm-10:55 am

2 stops36h 30m

$793

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Sat 6/20

6:20 am-2:49 pm

2 stops15h 29m

Philadelphia

Sat 7/18

7:45 pm-10:50 pm

2 stops20h 05m

$794

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 4/23

6:30 am-2:46 pm

2 stops15h 16m

Philadelphia

Wed 4/29

10:33 am-12:10 pm

2 stops18h 37m

$801

Quickest round-trip

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/15

12:55 pm-11:44 pm

2 stops17h 49m

Philadelphia

Sun 7/19

3:10 pm-12:10 pm

2 stops14h 00m

$803

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 Sofia to Philadelphia

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

What is the typical price of a round-trip flight between Sofia and Philadelphia?

Can stopping save me money on Sofia to Philadelphia flights?

You could potentially save up to 5% on your flight if you consider stops on a Sofia to Philadelphia flight.

When to book flights from Sofia to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Sofia to Philadelphia (SOF to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Philadelphia

Fastest flight time	26h 55m
Direct flights	None

The fastest flight from Sofia to Philadelphia takes 26h 55m

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

Search flight deals

Frequently asked questions about flying from Sofia to Philadelphia

How far is Sofia to Philadelphia by plane?
The straight-line distance from Sofia to Philadelphia is 4789.3 mi. Typically, this will take 26h 55m by plane in normal conditions.
When did momondo last update prices for flights from Sofia Airport to Philadelphia Airport?
Prices for flights from Sofia Airport to Philadelphia Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Sofia Airport to Philadelphia Airport?
There are 2 operators available for flights from Sofia Airport to Philadelphia Airport as of April 2026.
How old do you have to be to fly from Sofia Airport to Philadelphia 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 Sofia Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The necessary travel and health documents for your Philadelphia 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.
What is the most popular airline from Sofia to Philadelphia?
Based on momondo bookings for flights between Sofia and Philadelphia, the leading airline is Lufthansa, making up 81% of the total bookings. Other popular airlines include United Airlines with 19%.

Best airlines flying from Sofia to Philadelphia

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $661	Free Cancellation	Rating 7.4 9,574 reviews		Search United Airlines flights
Lufthansa	PriceFrom $674	Free Cancellation	Rating 6.8 7,913 reviews		Search Lufthansa flights

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Avalon

North Wildwood

Dover

Lewes

Stone Harbor

New Castle

Essington

Vineland

Pottstown

Somers Point

Why use momondo?

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

It is quick and easy to find Sofia to Philadelphia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Philadelphia that suits you.

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

Yes. All flights to Philadelphia from Sofia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sofia to Philadelphia?

Once all potential Sofia to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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