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Cheap flights from London Stansted Airport to Philadelphia from £225

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Philadelphia
Explore the most affordable flight options available from Stansted to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 March 2026.

Wed 22/406:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Wed 29/408:25
PHL
-
STN
2 stops18h 25m
Multiple Airlines
Deal found 8/3£480
Mon 13/408:30
STN
-
PHL
1 stop15h 25m
Multiple Airlines
Mon 20/408:25
PHL
-
STN
2 stops18h 25m
Multiple Airlines
Deal found 6/3£484
Fri 24/406:35
STN
-
PHL
1 stop17h 20m
Multiple Airlines
Mon 27/408:25
PHL
-
STN
2 stops18h 25m
Multiple Airlines
Deal found 9/3£501
Mon 20/407:15
STN
-
PHL
3 stops20h 28m
Multiple Airlines
Mon 27/415:30
PHL
-
STN
3 stops21h 05m
Multiple Airlines
Deal found 6/3£505
Thu 2/406:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sun 12/420:25
PHL
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 9/3£531
Tue 13/1006:45
STN
-
PHL
2 stops17h 10m
Multiple Airlines
Sun 18/1020:25
PHL
-
STN
1 stop13h 05m
Multiple Airlines
Deal found 5/3£531
Tue 14/406:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sun 26/420:25
PHL
-
STN
1 stop18h 05m
Multiple Airlines
Deal found 7/3£534
Wed 1/406:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sun 12/420:25
PHL
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 7/3£537
Thu 2/406:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Thu 16/420:25
PHL
-
STN
1 stop18h 10m
Multiple Airlines
Deal found 6/3£542

Find flight deals from Stansted to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 March 2026.

Round-trip from

£480

One-way from

£225

Popular in

December

Cheapest in

September

Average price

£605
22/4-29/4
  • 22/4-29/4
  • 3 total stops
  • 35h 50m total
  • London to Philadelphia
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 36h 17m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 10 March 2026.
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 return flight

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 13/4

08:30-18:55

1 stop15h 25m

Philadelphia

Mon 20/4

08:25-07:50

2 stops18h 25m

£484

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 22/4

15:35-14:46

3 stops28h 11m

Philadelphia

Wed 29/4

17:40-23:15

2 stops24h 35m

£631

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 1/6

18:05-18:55

2 stops29h 50m

Philadelphia

Sun 23/8

20:25-12:55

1 stop11h 30m

£645

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 21/4

06:40-18:55

2 stops17h 15m

Philadelphia

Wed 22/4

20:25-11:35

1 stop10h 10m

£679

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 18/4

06:25-18:55

2 stops17h 30m

Philadelphia

Wed 22/4

20:25-11:35

1 stop10h 10m

£682

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 18/4

06:25-18:55

2 stops17h 30m

Philadelphia

Sun 19/4

20:25-12:55

1 stop11h 30m

£683
Fastest return journey

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 16/5

11:10-18:55

1 stop12h 45m

Philadelphia

Sun 24/5

20:25-12:55

1 stop11h 30m

£709

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 2/4

06:30-18:55

1 stop17h 25m

Philadelphia

Thu 9/4

08:30-07:50

2 stops18h 20m

£720

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 3/5

22:00-21:33

3 stops28h 33m

Philadelphia

Wed 6/5

20:25-11:35

1 stop10h 10m

£722

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 25/3

06:30-09:04

2 stops30h 34m

Philadelphia

Thu 9/4

20:25-17:35

1 stop16h 10m

£731

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Stansted to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Stansted with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Philadelphia from London Stansted?

    Most people fly into Philadelphia (PHL) if they book a flight to Philadelphia from London Stansted. On average, Philadelphia has 0 inbound flights from London Stansted per day from 0 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • Can I find deals for flights from Stansted to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Stansted to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Philadelphia.

  • Can I find deals for business class flights from Stansted to Philadelphia?

    Yes. Cheapflights offers flight deals from Stansted to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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How does Cheapflights help users find flights from Stansted to Philadelphia?

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Why should you use Cheapflights to find cheap flight tickets from Stansted to Philadelphia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Stansted to Philadelphia.

Can Cheapflights find flights from Stansted to Philadelphia with no change fees?

Yes, we can. To see specific flights from Stansted to Philadelphia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Stansted to Philadelphia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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