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.

$481 Cheap Flights from London Stansted Airport to Philadelphia in 2026

1 adult

0 bags

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

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.

7:20 am - 9:32 pm

STN

PHL

19h 12m

3 stops

3:25 pm - 12:10 am

PHL

STN

27h 45m

3 stops

$853Multiple Airlines

Thu, Sep 17 - Tue, Sep 22

7:20 am - 10:46 pm

STN

PHL

20h 26m

2 stops

3:25 pm - 2:35 pm

PHL

STN

18h 10m

3 stops

$866Multiple Airlines

Thu, Sep 17 - Tue, Sep 22

7:00 am - 6:55 pm

STN

PHL

16h 55m

2 stops

8:25 pm - 2:15 pm

PHL

STN

12h 50m

1 stop

$870Multiple Airlines

Sun, Aug 16 - Fri, Aug 21

10:05 pm - 9:33 pm

STN

PHL

28h 28m

3 stops

3:25 pm - 7:15 pm

PHL

STN

22h 50m

2 stops

$871Multiple Airlines

Thu, Jun 4 - Thu, Jun 18

10:05 pm - 9:33 pm

STN

PHL

28h 28m

2 stops

3:25 pm - 7:15 pm

PHL

STN

22h 50m

2 stops

$872Multiple Airlines

Thu, Jun 4 - Thu, Jun 18

5:25 pm - 2:49 pm

STN

PHL

26h 24m

3 stops

5:40 pm - 11:25 pm

PHL

STN

24h 45m

2 stops

$875Multiple Airlines

Tue, Jun 23 - Tue, Jun 30

1:15 pm - 4:05 pm

STN

PHL

31h 50m

2 stops

5:40 pm - 7:50 pm

PHL

STN

21h 10m

2 stops

$876Multiple Airlines

Thu, Jun 11 - Mon, Jun 15

6:20 am - 9:34 pm

STN

PHL

20h 14m

2 stops

4:20 pm - 9:10 pm

PHL

STN

23h 50m

2 stops

$893Multiple Airlines

Fri, Jun 19 - Fri, Jun 26

6:20 am - 10:44 pm

STN

PHL

21h 24m

3 stops

4:20 pm - 11:20 pm

PHL

STN

26h 00m

2 stops

$903Multiple Airlines

Fri, Jun 26 - Sun, Jun 28

10:05 pm - 9:34 pm

STN

PHL

28h 29m

2 stops

4:20 pm - 9:40 pm

PHL

STN

24h 20m

2 stops

$911Multiple Airlines

Thu, Jul 30 - Wed, Aug 5

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

Cheapest round-trip

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 9/17

7:20 am-9:32 pm

3 stops19h 12m

Philadelphia

Tue 9/22

3:25 pm-12:10 am

3 stops27h 45m

$853

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 9/17

7:20 am-10:46 pm

2 stops20h 26m

Philadelphia

Tue 9/22

3:25 pm-2:35 pm

3 stops18h 10m

$866

Quickest round-trip

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 8/16

7:00 am-6:55 pm

2 stops16h 55m

Philadelphia

Fri 8/21

8:25 pm-2:15 pm

1 stop12h 50m

$870

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 6/4

10:05 pm-9:33 pm

3 stops28h 28m

Philadelphia

Thu 6/18

3:25 pm-7:15 pm

2 stops22h 50m

$871

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 6/4

10:05 pm-9:33 pm

2 stops28h 28m

Philadelphia

Thu 6/18

3:25 pm-7:15 pm

2 stops22h 50m

$872

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 6/23

5:25 pm-2:49 pm

3 stops26h 24m

Philadelphia

Tue 6/30

5:40 pm-11:25 pm

2 stops24h 45m

$875

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 6/11

1:15 pm-4:05 pm

2 stops31h 50m

Philadelphia

Mon 6/15

5:40 pm-7:50 pm

2 stops21h 10m

$876

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 6/19

6:20 am-9:34 pm

2 stops20h 14m

Philadelphia

Fri 6/26

4:20 pm-9:10 pm

2 stops23h 50m

$893

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 6/26

6:20 am-10:44 pm

3 stops21h 24m

Philadelphia

Sun 6/28

4:20 pm-11:20 pm

2 stops26h 00m

$903

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 7/30

10:05 pm-9:34 pm

2 stops28h 29m

Philadelphia

Wed 8/5

4:20 pm-9:40 pm

2 stops24h 20m

$911

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 Monday. Travelers who choose to depart for Philadelphia on a Monday will often find tickets for as low as $785. 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 $939.

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 $808. 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 $857.

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 55m
Direct flights	None

The fastest flight from London Stansted Airport to Philadelphia takes 16h 55m

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

Search flight deals

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 55m.
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

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Dewey Beach

Reading

Dover

North Wildwood

Avalon

Lewes

Stone Harbor

New Castle

Essington

Vineland

Chester

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.