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Cheap flights from London Stansted Airport to Philadelphia from £292

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
23 Apr — 30 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 24 March 2026.

Mon 24/807:15
STN
-
PHL
2 stops16h 40m
Multiple Airlines
Tue 1/920:25
PHL
-
STN
1 stop19h 55m
Multiple Airlines
Deal found 19/3£547
Mon 20/406:50
STN
-
PHL
3 stops20h 53m
Multiple Airlines
Mon 27/415:30
PHL
-
STN
3 stops16h 45m
Multiple Airlines
Deal found 23/3£553
Wed 4/1114:20
STN
-
PHL
2 stops30h 40m
Multiple Airlines
Mon 9/1117:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 21/3£565
Thu 16/413:15
STN
-
PHL
1 stop10h 40m
Multiple Airlines
Wed 22/420:25
PHL
-
STN
1 stop18h 05m
Multiple Airlines
Deal found 24/3£569
Thu 7/509:00
STN
-
PHL
3 stops18h 43m
Multiple Airlines
Thu 14/517:40
PHL
-
STN
3 stops15h 25m
Multiple Airlines
Deal found 23/3£574
Mon 4/508:30
STN
-
PHL
1 stop15h 25m
Multiple Airlines
Mon 11/520:25
PHL
-
STN
1 stop11h 25m
Multiple Airlines
Deal found 20/3£585

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 24 March 2026.

Round-trip from

£553

One-way from

£292

Popular in

December

Cheapest in

September

Average price

£615
20/4-27/4
  • 20/4-27/4
  • 6 total stops
  • 37h 38m total
  • London to Philadelphia
Search Deals
21/4
  • 21/4
  • 3 total stops
  • 49h 59m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£16 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 24 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 24/8

07:15-18:55

2 stops16h 40m

Philadelphia

Mon 31/8

20:25-17:05

1 stop15h 40m

£574
Fastest return journey

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 5/5

11:35-18:55

1 stop12h 20m

Philadelphia

Tue 12/5

20:25-17:35

1 stop16h 10m

£609

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 25/8

06:40-18:55

2 stops17h 15m

Philadelphia

Sun 30/8

20:25-12:55

1 stop11h 30m

£609

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 27/8

05:45-18:55

2 stops18h 10m

Philadelphia

Mon 31/8

20:25-12:50

1 stop11h 25m

£654

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 3/5

06:45-21:33

2 stops19h 48m

Philadelphia

Sun 10/5

10:05-11:55

3 stops20h 50m

£678

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 22/4

12:25-16:05

2 stops32h 40m

Philadelphia

Wed 29/4

17:40-21:30

2 stops22h 50m

£702

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 8/5

07:15-21:33

2 stops19h 18m

Philadelphia

Fri 15/5

10:25-19:30

3 stops28h 05m

£707

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 16/4

06:30-18:55

1 stop17h 25m

Philadelphia

Thu 23/4

20:25-19:35

1 stop18h 10m

£723

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 23/4

06:00-23:37

3 stops46h 37m

Philadelphia

Thu 30/4

20:25-19:35

1 stop18h 10m

£744

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 21/5

20:45-16:05

2 stops24h 20m

Philadelphia

Tue 26/5

17:40-21:00

2 stops22h 20m

£761

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 23 resultsSorted by cheapest first
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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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