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 July 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.

$710 Cheap Flights from Sofia to Philadelphia in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:30 am - 4:05 pm

SOF

PHL

16h 35m

1 stop

5:40 pm - 1:25 pm

PHL

SOF

12h 45m

1 stop

$745Lufthansa

Thu, Aug 27 - Wed, Sep 2

6:10 am - 4:05 pm

SOF

PHL

16h 55m

2 stops

5:40 pm - 1:25 pm

PHL

SOF

12h 45m

1 stop

$768Lufthansa

Thu, Aug 27 - Wed, Sep 2

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

5:40 pm - 10:40 pm

PHL

SOF

22h 00m

1 stop

$785United Airlines

Mon, Jul 27 - Mon, Aug 3

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

3:25 pm - 11:15 pm

PHL

SOF

24h 50m

2 stops

$787Multiple Airlines

Mon, Jul 27 - Mon, Aug 3

6:20 am - 4:05 pm

SOF

PHL

16h 45m

1 stop

10:39 am - 11:15 pm

PHL

SOF

29h 36m

2 stops

$788United Airlines

Mon, Jul 27 - Mon, Aug 3

6:30 am - 6:53 pm

SOF

PHL

19h 23m

2 stops

10:30 am - 6:40 pm

PHL

SOF

25h 10m

2 stops

$790United Airlines

Thu, Aug 27 - Wed, Sep 2

6:20 am - 5:52 pm

SOF

PHL

18h 32m

2 stops

11:38 am - 1:25 pm

PHL

SOF

18h 47m

2 stops

$799United Airlines

Mon, Jul 27 - Mon, Aug 3

6:10 am - 4:05 pm

SOF

PHL

16h 55m

2 stops

5:40 pm - 1:25 pm

PHL

SOF

12h 45m

1 stop

$805Lufthansa

Fri, Aug 7 - Mon, Aug 24

6:10 am - 4:05 pm

SOF

PHL

16h 55m

2 stops

6:56 pm - 11:15 pm

PHL

SOF

21h 19m

2 stops

$807United Airlines

Fri, Aug 7 - Mon, Aug 24

7:25 pm - 4:05 pm

SOF

PHL

27h 40m

2 stops

4:20 pm - 11:15 pm

PHL

SOF

23h 55m

2 stops

$852Lufthansa

Sat, Aug 8 - Sat, Aug 15

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

Lufthansa flights from Sofia to Philadelphia

Our best Lufthansa deals on Sofia to Philadelphia flight tickets

Lufthansa

Aug 27

SOF6:30 amSofia

16h 35m

1 stop

PHL4:05 pmPhiladelphia

Sep 2

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

$745

Lufthansa

Aug 27

SOF6:10 amSofia

16h 55m

2 stops

PHL4:05 pmPhiladelphia

Sep 2

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

$768

Lufthansa

Aug 7

SOF6:10 amSofia

16h 55m

2 stops

PHL4:05 pmPhiladelphia

Aug 24

PHL5:40 pmPhiladelphia

12h 45m

1 stop

SOF1:25 pmSofia

$805

United Airlines flights from Sofia to Philadelphia

Our best United Airlines deals on Sofia to Philadelphia flight tickets

United Airlines

Jul 27

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

Aug 3

PHL5:40 pmPhiladelphia

22h 00m

1 stop

SOF10:40 pmSofia

$785

United Airlines

Jul 27

SOF6:20 amSofia

16h 45m

1 stop

PHL4:05 pmPhiladelphia

Aug 3

PHL10:39 amPhiladelphia

29h 36m

2 stops

SOF11:15 pmSofia

$788

United Airlines

Aug 27

SOF6:30 amSofia

19h 23m

2 stops

PHL6:53 pmPhiladelphia

Sep 2

PHL10:30 amPhiladelphia

25h 10m

2 stops

SOF6:40 pmSofia

$790

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 8/27

6:30 am-4:05 pm

1 stop16h 35m

Philadelphia

Wed 9/2

5:40 pm-1:25 pm

1 stop12h 45m

$745

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 8/27

6:10 am-4:05 pm

2 stops16h 55m

Philadelphia

Wed 9/2

5:40 pm-1:25 pm

1 stop12h 45m

$768

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 7/27

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 8/3

5:40 pm-10:40 pm

1 stop22h 00m

$785

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 7/27

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 8/3

3:25 pm-11:15 pm

2 stops24h 50m

$787

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 7/27

6:20 am-4:05 pm

1 stop16h 45m

Philadelphia

Mon 8/3

10:39 am-11:15 pm

2 stops29h 36m

$788

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Thu 8/27

6:30 am-6:53 pm

2 stops19h 23m

Philadelphia

Wed 9/2

10:30 am-6:40 pm

2 stops25h 10m

$790

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Mon 7/27

6:20 am-5:52 pm

2 stops18h 32m

Philadelphia

Mon 8/3

11:38 am-1:25 pm

2 stops18h 47m

$799

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Fri 8/7

6:10 am-4:05 pm

2 stops16h 55m

Philadelphia

Mon 8/24

5:40 pm-1:25 pm

1 stop12h 45m

$805

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Fri 8/7

6:10 am-4:05 pm

2 stops16h 55m

Philadelphia

Mon 8/24

6:56 pm-11:15 pm

2 stops21h 19m

$807

SofiaPhiladelphia

SOF - PHL

SOFPHL

Sofia

Sat 8/8

7:25 pm-4:05 pm

2 stops27h 40m

Philadelphia

Sat 8/15

4:20 pm-11:15 pm

2 stops23h 55m

$852

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

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 33% 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 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 35m
Direct flights	None

The fastest flight from Sofia to Philadelphia takes 16h 35m

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 35m 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 July 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 $602	Free Cancellation	Rating 6.8 8,128 reviews		Search Lufthansa flights

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Dewey Beach

Dover

Essington

North Wildwood

Avalon

New Castle

Lewes

Chester

Stone Harbor

Vineland

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.