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Cheap flights from London Stansted Airport to Philadelphia from £347

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
9 Jul — 16 Jul1
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 9 June 2026.

Thu 8/1012:00
STN
-
PHL
1 stop11h 55m
Multiple Airlines
Mon 12/1020:25
PHL
-
STN
1 stop11h 25m
Multiple Airlines
Deal found 9/6£633
Thu 13/808:30
STN
-
PHL
1 stop15h 25m
Multiple Airlines
Tue 18/820:25
PHL
-
STN
1 stop16h 10m
Multiple Airlines
Deal found 8/6£639
Mon 15/606:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Mon 22/620:25
PHL
-
STN
1 stop18h 00m
Multiple Airlines
Deal found 6/6£645
Thu 23/712:00
STN
-
PHL
1 stop11h 55m
Multiple Airlines
Thu 30/709:20
PHL
-
STN
2 stops17h 30m
Multiple Airlines
Deal found 8/6£647
Thu 30/722:05
STN
-
PHL
3 stops28h 29m
Multiple Airlines
Tue 4/810:05
PHL
-
STN
2 stops20h 00m
Multiple Airlines
Deal found 6/6£648
Thu 9/706:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sat 18/720:25
PHL
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 8/6£652
Mon 20/708:30
STN
-
PHL
2 stops16h 30m
Multiple Airlines
Mon 27/720:25
PHL
-
STN
1 stop11h 25m
Multiple Airlines
Deal found 5/6£654
Tue 7/707:10
STN
-
PHL
3 stops19h 24m
Multiple Airlines
Tue 14/715:25
PHL
-
STN
2 stops18h 10m
Multiple Airlines
Deal found 9/6£654
Thu 6/806:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sat 15/820:25
PHL
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 6/6£657
Tue 16/611:35
STN
-
PHL
1 stop12h 20m
Multiple Airlines
Tue 23/620:25
PHL
-
STN
1 stop16h 10m
Multiple Airlines
Deal found 9/6£659

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 9 June 2026.

Round-trip from

£633

One-way from

£347

Popular in

June

Cheapest in

September

Average price

£717
8/10-12/10
  • 8/10-12/10
  • 2 total stops
  • 23h 20m total
  • London to Philadelphia
Search Deals
3/10
  • 3/10
  • 3 total stops
  • 43h 05m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 9 June 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

Thu 2/7

19:25-14:49

3 stops24h 24m

Philadelphia

Thu 9/7

10:05-14:55

3 stops23h 50m

£714

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 20/7

08:30-18:55

1 stop15h 25m

Philadelphia

Mon 27/7

20:25-12:50

1 stop11h 25m

£714

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 4/11

17:45-16:00

2 stops27h 15m

Philadelphia

Wed 18/11

17:30-07:50

1 stop9h 20m

£732

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 7/10

21:20-18:55

3 stops26h 35m

Philadelphia

Mon 19/10

13:20-16:25

3 stops22h 05m

£744

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 4/7

05:55-10:04

3 stops33h 09m

Philadelphia

Sat 11/7

10:45-17:20

2 stops25h 35m

£750

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 5/7

06:35-18:55

1 stop17h 20m

Philadelphia

Sun 12/7

20:25-19:30

1 stop18h 05m

£782

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 2/12

18:45-16:00

1 stop26h 15m

Philadelphia

Sat 5/12

17:30-07:40

1 stop9h 10m

£785

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 11/8

06:30-18:55

2 stops17h 25m

Philadelphia

Sun 16/8

15:25-19:55

3 stops23h 30m

£788
Fastest return journey

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 8/10

12:00-18:55

1 stop11h 55m

Philadelphia

Tue 13/10

20:25-12:45

1 stop11h 20m

£801

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 11/10

07:00-18:55

2 stops16h 55m

Philadelphia

Sun 25/10

17:38-22:25

3 stops24h 47m

£821

Flights are sorted by cheapest return flights first.

Deals found on 5/6

Showing 1-10 of 20 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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