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

Prices for flights from London Stansted Airport to Philadelphia Airport were last updated today.

How old do you have to be to fly from London Stansted 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 London Stansted 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.

$343 Cheap Flights from London Stansted Airport to Philadelphia in 2025/26

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Find the cheapest flights from London Stansted Airport to Philadelphia

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One-way

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Enter your travel dates to find the best prices.

8:30 am - 2:47 pm

STN

PHL

35h 17m2 stops

3:30 pm - 4:55 pm

PHL

STN

20h 25m2 stops

$803Multiple Airlines

Thu, Jan 22 - Mon, Jan 26

8:30 am - 2:47 pm

STN

PHL

35h 17m3 stops

3:30 pm - 4:55 pm

PHL

STN

20h 25m2 stops

$817Multiple Airlines

Thu, Jan 22 - Mon, Jan 26

8:40 am - 10:46 pm

STN

PHL

19h 06m3 stops

3:30 pm - 4:55 pm

PHL

STN

20h 25m2 stops

$823Multiple Airlines

Mon, Jan 12 - Mon, Jan 19

8:40 am - 10:46 pm

STN

PHL

19h 06m3 stops

4:35 pm - 4:55 pm

PHL

STN

19h 20m3 stops

$826Multiple Airlines

Mon, Jan 12 - Mon, Jan 19

8:25 pm - 10:45 pm

STN

PHL

31h 20m2 stops

6:30 pm - 7:50 am

PHL

STN

9h 20m1 stop

$836Multiple Airlines

Tue, Mar 3 - Sun, Mar 8

9:45 pm - 4:00 pm

STN

PHL

23h 15m1 stop

6:30 pm - 7:50 am

PHL

STN

9h 20m1 stop

$865Multiple Airlines

Tue, Mar 3 - Sun, Mar 8

9:00 pm - 11:46 am

STN

PHL

43h 46m2 stops

6:30 pm - 7:50 am

PHL

STN

9h 20m1 stop

$886Multiple Airlines

Sat, Mar 7 - Sat, Mar 14

9:20 pm - 4:49 pm

STN

PHL

48h 29m2 stops

8:30 pm - 5:35 pm

PHL

STN

16h 05m1 stop

$924Multiple Airlines

Thu, Jan 22 - Thu, Apr 16

9:45 pm - 10:46 pm

STN

PHL

30h 01m3 stops

3:30 pm - 9:20 pm

PHL

STN

24h 50m3 stops

$927Multiple Airlines

Tue, Jan 20 - Tue, Jan 27

5:55 am - 10:46 pm

STN

PHL

21h 51m3 stops

3:30 pm - 10:25 pm

PHL

STN

25h 55m3 stops

$981Multiple Airlines

Tue, Jan 6 - Tue, Jan 13

momondo Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 1/22

8:30 am-2:47 pm

2 stops35h 17m

Philadelphia

Mon 1/26

3:30 pm-4:55 pm

2 stops20h 25m

$803

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 1/22

8:30 am-2:47 pm

3 stops35h 17m

Philadelphia

Mon 1/26

3:30 pm-4:55 pm

2 stops20h 25m

$817

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 1/12

8:40 am-10:46 pm

3 stops19h 06m

Philadelphia

Mon 1/19

3:30 pm-4:55 pm

2 stops20h 25m

$823

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 1/12

8:40 am-10:46 pm

3 stops19h 06m

Philadelphia

Mon 1/19

4:35 pm-4:55 pm

3 stops19h 20m

$826

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 3/3

8:25 pm-10:45 pm

2 stops31h 20m

Philadelphia

Sun 3/8

6:30 pm-7:50 am

1 stop9h 20m

$836

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 3/3

9:45 pm-4:00 pm

1 stop23h 15m

Philadelphia

Sun 3/8

6:30 pm-7:50 am

1 stop9h 20m

$865

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 3/7

9:00 pm-11:46 am

2 stops43h 46m

Philadelphia

Sat 3/14

6:30 pm-7:50 am

1 stop9h 20m

$886

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 1/22

9:20 pm-4:49 pm

2 stops48h 29m

Philadelphia

Thu 4/16

8:30 pm-5:35 pm

1 stop16h 05m

$924

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 1/20

9:45 pm-10:46 pm

3 stops30h 01m

Philadelphia

Tue 1/27

3:30 pm-9:20 pm

3 stops24h 50m

$927

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 1/6

5:55 am-10:46 pm

3 stops21h 51m

Philadelphia

Tue 1/13

3:30 pm-10:25 pm

3 stops25h 55m

$981

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 London Stansted Airport 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 day to depart on your flight to Philadelphia?

The cheapest day to depart from London Stansted Airport to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $771. On the other hand, Monday is the most expensive day to depart from London Stansted Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $856.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from London Stansted Airport to Philadelphia in the evening for as low as $704. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $822.

When to book flights from London Stansted Airport to Philadelphia

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

Estimated round-trip price

Cheap London Stansted Airport to Philadelphia (STN to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Philadelphia

Fastest flight time	14h 30m
Direct flights	None

The fastest flight from London Stansted Airport to Philadelphia takes 14h 30m

There are no direct flights from London Stansted Airport to Philadelphia. There are no popular flight routes from London Stansted Airport to Philadelphia.

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How far is London Stansted to Philadelphia by plane?
The distance between London Stansted and Philadelphia is about 3545.2 mi. By plane, this route typically takes 10h 45m.
When did momondo last update prices for flights from London Stansted Airport to Philadelphia Airport?
Prices for flights from London Stansted Airport to Philadelphia Airport were last updated today.
How old do you have to be to fly from London Stansted 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 London Stansted 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.

Wildwood

Cape May

Rehoboth Beach

Ocean City

Wildwood Crest

King of Prussia

Cherry Hill

Newark

Dewey Beach

Reading

North Wildwood

Avalon

Dover

Lewes

Stone Harbor

Essington

Vineland

Pottstown

Elkton

Somers Point

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Philadelphia for you.

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

momondo does allow users to show only those flights to Philadelphia from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Philadelphia.

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

Yes. momondo can track prices for London to Philadelphia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.