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

United Airlines is the most popular carrier operating from Sofia to Philadelphia

What airlines fly to Philadelphia?

Turkish Airlines, Lufthansa and LOT are the top three most popular airlines that fly to Philadelphia from Sofia according to our data. Turkish Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 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 is 1 operator available for flights from Sofia Airport to Philadelphia Airport as of May 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.

$699 Cheap Flights from Sofia to Philadelphia in 2026

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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.

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

3:10 pm - 11:15 pm

PHL

SOF

25h 05m

2 stops

$789United Airlines

Mon, Jun 8 - Mon, Jun 15

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

5:40 pm - 10:40 pm

PHL

SOF

22h 00m

1 stop

$790United Airlines

Mon, Jun 8 - Mon, Jun 15

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

5:40 pm - 6:00 pm

PHL

SOF

17h 20m

1 stop

$791United Airlines

Mon, Jun 8 - Mon, Jun 15

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

7:45 pm - 11:15 pm

PHL

SOF

20h 30m

2 stops

$794United Airlines

Mon, Jun 8 - Mon, Jun 15

6:20 am - 7:18 pm

SOF

PHL

19h 58m

2 stops

7:45 pm - 11:15 pm

PHL

SOF

20h 30m

2 stops

$795United Airlines

Mon, Jun 8 - Mon, Jun 15

6:20 am - 9:33 pm

SOF

PHL

22h 13m

2 stops

4:20 pm - 6:00 pm

PHL

SOF

42h 40m

2 stops

$803Air Canada

Mon, Jun 8 - Mon, Jun 15

6:20 am - 9:33 pm

SOF

PHL

22h 13m

2 stops

10:05 am - 12:15 pm

PHL

SOF

19h 10m

2 stops

$804Multiple Airlines

Mon, Jun 8 - Mon, Jun 15

6:30 am - 11:44 pm

SOF

PHL

24h 14m

2 stops

6:00 am - 11:50 am

PHL

SOF

22h 50m

2 stops

$828United Airlines

Thu, Jul 30 - Mon, Dec 21

7:00 am - 9:20 pm

SOF

PHL

21h 20m

2 stops

3:00 pm - 2:00 pm

PHL

SOF

16h 00m

2 stops

$1,066KLM

Thu, Jul 9 - Sun, Jul 12

6:45 pm - 4:05 pm

SOF

PHL

28h 20m

1 stop

3:20 pm - 1:15 pm

PHL

SOF

14h 55m

2 stops

$1,086Multiple Airlines

Thu, Jul 30 - Mon, Dec 21

United Airlines flights from Sofia to Philadelphia

Our best United Airlines deals on Sofia to Philadelphia flight tickets

United Airlines

Jun 8

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

Jun 15

PHL3:10 pmPhiladelphia

25h 05m

2 stops

SOF11:15 pmSofia

$789

United Airlines

Jun 8

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

Jun 15

PHL5:40 pmPhiladelphia

22h 00m

1 stop

SOF10:40 pmSofia

$790

United Airlines

Jun 8

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

Jun 15

PHL5:40 pmPhiladelphia

17h 20m

1 stop

SOF6:00 pmSofia

$791

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 6/15

3:10 pm-11:15 pm

2 stops25h 05m

$789

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 6/15

5:40 pm-10:40 pm

1 stop22h 00m

$790

Quickest round-trip

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 6/15

5:40 pm-6:00 pm

1 stop17h 20m

$791

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 6/15

7:45 pm-11:15 pm

2 stops20h 30m

$794

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-7:18 pm

2 stops19h 58m

Philadelphia

Mon 6/15

7:45 pm-11:15 pm

2 stops20h 30m

$795

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-9:33 pm

2 stops22h 13m

Philadelphia

Mon 6/15

4:20 pm-6:00 pm

2 stops42h 40m

$803

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 6/8

6:20 am-9:33 pm

2 stops22h 13m

Philadelphia

Mon 6/15

10:05 am-12:15 pm

2 stops19h 10m

$804

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 7/30

6:30 am-11:44 pm

2 stops24h 14m

Philadelphia

Mon 12/21

6:00 am-11:50 am

2 stops22h 50m

$828

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 7/9

7:00 am-9:20 pm

2 stops21h 20m

Philadelphia

Sun 7/12

3:00 pm-2:00 pm

2 stops16h 00m

$1,066

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 7/30

6:45 pm-4:05 pm

1 stop28h 20m

Philadelphia

Mon 12/21

3:20 pm-1:15 pm

2 stops14h 55m

$1,086

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

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	16h 45m
Direct flights	None

The fastest flight from Sofia to Philadelphia takes 16h 45m

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 16h 45m 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 is 1 operator available for flights from Sofia Airport to Philadelphia Airport as of May 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 100% of the total bookings.

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
Lufthansa	PriceFrom $671	Free Cancellation	Rating 6.8 8,029 reviews		Search Lufthansa flights

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Dover

North Wildwood

Avalon

Lewes

Stone Harbor

Essington

New Castle

Vineland

Chester

Pottstown

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.