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Cheap flights from London Stansted Airport to Philadelphia from £342

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
3 Aug — 10 Aug1
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 4 July 2026.

Fri 30/1006:45
STN
-
PHL
1 stop14h 15m
Multiple Airlines
Thu 5/1117:30
PHL
-
STN
1 stop9h 35m
Multiple Airlines
Deal found 30/6£613
Sat 24/1006:15
STN
-
PHL
2 stops17h 40m
Multiple Airlines
Sun 1/1117:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 3/7£615
Fri 14/806:35
STN
-
PHL
1 stop17h 20m
Multiple Airlines
Fri 21/820:25
PHL
-
STN
1 stop16h 10m
Multiple Airlines
Deal found 30/6£616
Fri 30/1006:45
STN
-
PHL
1 stop14h 15m
Multiple Airlines
Mon 2/1117:30
PHL
-
STN
1 stop10h 00m
Multiple Airlines
Deal found 30/6£620
Mon 17/806:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Mon 24/809:12
PHL
-
STN
2 stops17h 38m
Multiple Airlines
Deal found 3/7£622
Mon 24/806:30
STN
-
PHL
3 stops21h 16m
Multiple Airlines
Mon 31/810:05
PHL
-
STN
3 stops24h 10m
Multiple Airlines
Deal found 30/6£623
Sat 24/1006:15
STN
-
PHL
2 stops17h 40m
Multiple Airlines
Fri 30/1018:30
PHL
-
STN
1 stop11h 10m
Multiple Airlines
Deal found 3/7£624
Wed 23/921:30
STN
-
PHL
3 stops29h 02m
Multiple Airlines
Fri 2/1020:25
PHL
-
STN
1 stop19h 55m
Multiple Airlines
Deal found 3/7£625
Tue 1/906:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Mon 7/920:25
PHL
-
STN
1 stop13h 15m
Multiple Airlines
Deal found 1/7£630
Thu 10/918:50
STN
-
PHL
2 stops29h 05m
Multiple Airlines
Thu 24/920:25
PHL
-
STN
1 stop21h 55m
Multiple Airlines
Deal found 30/6£631
Mon 14/906:40
STN
-
PHL
3 stops19h 52m
Multiple Airlines
Mon 28/920:25
PHL
-
STN
1 stop11h 25m
Multiple Airlines
Deal found 29/6£633
Thu 6/806:30
STN
-
PHL
1 stop17h 25m
Multiple Airlines
Sun 16/820:25
PHL
-
STN
1 stop15h 25m
Multiple Airlines
Deal found 2/7£635

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 4 July 2026.

Round-trip from

£613

One-way from

£342

Popular in

July

Cheapest in

September

Average price

£730
30/10-5/11
  • 30/10-5/11
  • 2 total stops
  • 23h 50m total
  • London to Philadelphia
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 35h 35m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£55 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 July 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 4 July 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 17/8

06:30-18:55

1 stop17h 25m

Philadelphia

Mon 24/8

09:12-07:50

2 stops17h 38m

£622

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 20/8

22:05-21:34

3 stops28h 29m

Philadelphia

Fri 28/8

10:05-19:20

3 stops28h 15m

£643

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 9/10

06:20-21:32

3 stops20h 12m

Philadelphia

Sat 24/10

15:25-17:40

3 stops21h 15m

£650

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 23/8

10:55-16:05

2 stops34h 10m

Philadelphia

Mon 31/8

16:20-22:25

2 stops25h 05m

£709

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 30/9

06:25-18:55

2 stops17h 30m

Philadelphia

Sat 3/10

20:25-12:55

1 stop11h 30m

£722

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 7/12

17:40-16:00

2 stops27h 20m

Philadelphia

Thu 17/12

17:30-08:05

1 stop9h 35m

£729

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 17/8

08:00-19:55

2 stops16h 55m

Philadelphia

Tue 18/8

16:20-19:35

2 stops22h 15m

£802

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 13/7

22:25-21:34

3 stops28h 09m

Philadelphia

Wed 9/9

16:20-14:20

2 stops17h 00m

£808

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 21/7

10:45-16:05

2 stops34h 20m

Philadelphia

Sat 25/7

16:20-17:20

2 stops20h 00m

£829

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 7/8

21:55-15:41

2 stops22h 46m

Philadelphia

Sun 9/8

20:25-16:50

1 stop15h 25m

£850

Flights are sorted by cheapest return flights first.

Deals found on 29/6

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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