What is the cheapest airline that flies from London Stansted to Philadelphia?

British Airways is the most popular carrier operating from London Stansted to Philadelphia

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.

$506 Cheap Flights from London Stansted Airport to Philadelphia in 2026

Find the cheapest flights from London Stansted Airport to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:05 am - 5:40 pm

STN

PHL

14h 35m

1 stop

5:30 pm - 7:50 am

PHL

STN

9h 20m

1 stop

$815Multiple Airlines

Wed, Nov 4 - Sun, Nov 8

8:45 pm - 9:32 pm

STN

PHL

29h 47m

3 stops

4:20 pm - 3:30 pm

PHL

STN

18h 10m

2 stops

$816Multiple Airlines

Mon, Sep 21 - Mon, Sep 28

7:15 am - 10:46 pm

STN

PHL

20h 31m

3 stops

10:05 am - 7:50 pm

PHL

STN

28h 45m

3 stops

$820Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

6:25 am - 5:40 pm

STN

PHL

16h 15m

1 stop

5:30 pm - 7:50 am

PHL

STN

9h 20m

1 stop

$820Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

6:35 am - 6:55 pm

STN

PHL

17h 20m

1 stop

8:25 pm - 7:20 pm

PHL

STN

17h 55m

1 stop

$822Multiple Airlines

Fri, Aug 21 - Fri, Aug 28

6:10 am - 5:40 pm

STN

PHL

16h 30m

1 stop

5:30 pm - 8:30 am

PHL

STN

10h 00m

1 stop

$823Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

5:40 pm - 4:00 pm

STN

PHL

27h 20m

2 stops

5:30 pm - 8:30 am

PHL

STN

10h 00m

1 stop

$825Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

8:45 pm - 9:32 pm

STN

PHL

29h 47m

3 stops

4:20 pm - 3:30 pm

PHL

STN

18h 10m

2 stops

$825Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

6:25 am - 5:40 pm

STN

PHL

16h 15m

1 stop

5:30 pm - 8:15 am

PHL

STN

9h 45m

1 stop

$829Multiple Airlines

Thu, Nov 19 - Tue, Dec 1

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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

Cheapest round-trip

Quickest round-trip

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 11/4

8:05 am-5:40 pm

1 stop14h 35m

Philadelphia

Sun 11/8

5:30 pm-7:50 am

1 stop9h 20m

$815

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 9/21

8:45 pm-9:32 pm

3 stops29h 47m

Philadelphia

Mon 9/28

4:20 pm-3:30 pm

2 stops18h 10m

$816

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 9/14

7:15 am-10:46 pm

3 stops20h 31m

Philadelphia

Mon 9/21

10:05 am-7:50 pm

3 stops28h 45m

$820

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 11/5

6:25 am-5:40 pm

1 stop16h 15m

Philadelphia

Sun 11/8

5:30 pm-7:50 am

1 stop9h 20m

$820

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 8/21

6:35 am-6:55 pm

1 stop17h 20m

Philadelphia

Fri 8/28

8:25 pm-7:20 pm

1 stop17h 55m

$822

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 11/9

6:10 am-5:40 pm

1 stop16h 30m

Philadelphia

Mon 11/16

5:30 pm-8:30 am

1 stop10h 00m

$823

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 12/7

5:40 pm-4:00 pm

2 stops27h 20m

Philadelphia

Mon 12/14

5:30 pm-8:30 am

1 stop10h 00m

$825

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 9/14

8:45 pm-9:32 pm

3 stops29h 47m

Philadelphia

Mon 9/21

4:20 pm-3:30 pm

2 stops18h 10m

$825

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 11/19

6:25 am-5:40 pm

1 stop16h 15m

Philadelphia

Tue 12/1

5:30 pm-8:15 am

1 stop9h 45m

$829

Cheapest one-way

Quickest one-way

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 9/22

6:30 am-6:55 pm

2 stops17h 25m

$506

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

Prices

Airlines

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 Monday. Travelers who choose to depart for Philadelphia on a Monday will often find tickets for as low as $814. On the other hand, Sunday 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 $979.

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 at noon. momondo users have found flights departing from London Stansted Airport to Philadelphia at noon for as low as $812. 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 $904.

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	16h 30m
Direct flights	None

The fastest flight from London Stansted Airport to Philadelphia takes 16h 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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Frequently asked questions about flying from London Stansted Airport to Philadelphia

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 16h 30m.
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.

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Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Dewey Beach

Essington

Dover

North Wildwood

New Castle

Chester

Avalon

Lewes

Vineland

Stone Harbor

Pottstown

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.