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Cheap flights from London Stansted Airport to Philadelphia from £278

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
7 May — 14 May1
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 7 April 2026.

Tue 19/507:10
STN
-
PHL
2 stops20h 33m
Multiple Airlines
Tue 26/517:40
PHL
-
STN
2 stops25h 30m
Multiple Airlines
Deal found 4/4£567
Fri 17/406:35
STN
-
PHL
1 stop17h 20m
Multiple Airlines
Mon 20/420:25
PHL
-
STN
1 stop15h 40m
Multiple Airlines
Deal found 7/4£602
Tue 5/515:55
STN
-
PHL
2 stops29h 10m
Multiple Airlines
Mon 11/517:40
PHL
-
STN
2 stops19h 50m
Multiple Airlines
Deal found 5/4£603
Mon 31/807:15
STN
-
PHL
2 stops16h 40m
Multiple Airlines
Mon 30/1117:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 5/4£608
Tue 15/907:05
STN
-
PHL
2 stops16h 50m
Multiple Airlines
Tue 13/1020:25
PHL
-
STN
1 stop11h 20m
Multiple Airlines
Deal found 7/4£623
Thu 21/507:20
STN
-
PHL
2 stops20h 23m
Multiple Airlines
Thu 28/517:40
PHL
-
STN
2 stops25h 50m
Multiple Airlines
Deal found 6/4£628
Mon 31/807:15
STN
-
PHL
2 stops16h 40m
Multiple Airlines
Sun 29/1117:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 5/4£632
Tue 5/509:10
STN
-
PHL
3 stops43h 35m
Multiple Airlines
Tue 26/510:05
PHL
-
STN
3 stops31h 15m
Multiple Airlines
Deal found 4/4£636
Sat 2/520:55
STN
-
PHL
3 stops22h 53m
Multiple Airlines
Sat 9/510:25
PHL
-
STN
3 stops27h 05m
Multiple Airlines
Deal found 4/4£637

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 7 April 2026.

Round-trip from

£567

One-way from

£278

Popular in

December

Cheapest in

September

Average price

£631
19/5-26/5
  • 19/5-26/5
  • 4 total stops
  • 46h 03m total
  • London to Philadelphia
Search Deals
15/4
  • 15/4
  • 3 total stops
  • 54h 29m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 7 April 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

Tue 19/5

07:10-21:33

3 stops19h 23m

Philadelphia

Tue 26/5

17:40-00:10

2 stops25h 30m

£608

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 5/5

15:55-14:48

3 stops27h 53m

Philadelphia

Mon 11/5

10:05-18:30

2 stops27h 25m

£610

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 5/5

18:55-23:45

3 stops33h 50m

Philadelphia

Tue 26/5

16:20-13:25

2 stops16h 05m

£670

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 4/5

08:10-23:45

3 stops44h 35m

Philadelphia

Mon 11/5

16:20-14:40

2 stops17h 20m

£724

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 21/5

06:30-09:48

3 stops32h 18m

Philadelphia

Thu 28/5

10:05-21:20

3 stops30h 15m

£732

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 24/6

06:30-10:09

3 stops32h 39m

Philadelphia

Mon 10/8

15:25-16:25

3 stops20h 00m

£752

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 30/5

06:35-23:58

3 stops46h 23m

Philadelphia

Sat 20/6

16:20-23:20

2 stops26h 00m

£757

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 19/4

08:30-18:55

1 stop15h 25m

Philadelphia

Mon 4/5

20:25-17:05

1 stop15h 40m

£783
Fastest return journey

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 16/8

07:10-18:55

2 stops16h 45m

Philadelphia

Sun 23/8

20:25-12:55

1 stop11h 30m

£803

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 26/4

07:35-10:54

3 stops32h 19m

Philadelphia

Wed 6/5

20:25-12:50

1 stop11h 25m

£809

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 17 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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