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Cheap flights from London Stansted Airport to Philadelphia from £234

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
9 Mar — 16 Mar1
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 February 2026.

Thu 26/306:30
STN
-
PHL
1 stop14h 30m
Multiple Airlines
Mon 30/320:25
PHL
-
STN
1 stop11h 25m
Multiple Airlines
Deal found 3/2£437
Thu 26/306:30
STN
-
PHL
1 stop14h 30m
Multiple Airlines
Sun 29/320:25
PHL
-
STN
1 stop15h 25m
Multiple Airlines
Deal found 5/2£446
Wed 1/408:30
STN
-
PHL
1 stop15h 25m
Multiple Airlines
Tue 7/420:25
PHL
-
STN
1 stop11h 20m
Multiple Airlines
Deal found 3/2£484
Fri 24/412:20
STN
-
PHL
2 stops35h 35m
Multiple Airlines
Mon 4/520:25
PHL
-
STN
1 stop21h 55m
Multiple Airlines
Deal found 5/2£507
Mon 2/308:05
STN
-
PHL
3 stops37h 21m
Multiple Airlines
Mon 23/305:00
PHL
-
STN
3 stops29h 30m
Multiple Airlines
Deal found 3/2£509
Wed 11/318:45
STN
-
PHL
2 stops26h 20m
Multiple Airlines
Sun 15/318:40
PHL
-
STN
2 stops22h 40m
Multiple Airlines
Deal found 3/2£522
Mon 2/308:30
STN
-
PHL
1 stop12h 30m
Multiple Airlines
Mon 9/318:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 5/2£524
Wed 4/308:30
STN
-
PHL
1 stop12h 30m
Multiple Airlines
Mon 9/318:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 4/2£525
Thu 5/306:30
STN
-
PHL
1 stop14h 30m
Multiple Airlines
Mon 9/318:30
PHL
-
STN
1 stop9h 20m
Multiple Airlines
Deal found 5/2£526
Tue 24/221:20
STN
-
PHL
2 stops50h 31m
Multiple Airlines
Sun 10/520:25
PHL
-
STN
1 stop11h 30m
Multiple Airlines
Deal found 4/2£533
Thu 19/206:20
STN
-
PHL
3 stops21h 26m
Multiple Airlines
Mon 23/207:50
PHL
-
STN
3 stops28h 00m
Multiple Airlines
Deal found 5/2£537

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 February 2026.

Round-trip from

£446

One-way from

£234

Popular in

December

Cheapest in

January

Average price

£484
26/3-29/3
  • 26/3-29/3
  • 2 total stops
  • 29h 55m total
  • London to Philadelphia
Search Deals
15/4
  • 15/4
  • 3 total stops
  • 48h 11m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 February 2026.
Use the filters below to find and compare flights from London Stansted Airport to Philadelphia that are best for you.

Fly from

Stansted

Fly to

Philadelphia

Route

Depart

Return

Price

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 26/3

06:30-17:00

1 stop14h 30m

Philadelphia

Mon 30/3

20:25-12:50

1 stop11h 25m

£437

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 26/3

06:30-17:00

1 stop14h 30m

Philadelphia

Sun 29/3

20:25-16:50

1 stop15h 25m

£446

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 24/4

12:20-18:55

2 stops35h 35m

Philadelphia

Mon 4/5

20:25-23:20

1 stop21h 55m

£507

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 2/3

08:05-16:26

3 stops37h 21m

Philadelphia

Mon 23/3

05:00-14:30

3 stops29h 30m

£509

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 11/3

08:30-17:00

1 stop12h 30m

Philadelphia

Sun 15/3

18:30-13:20

1 stop14h 50m

£525

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 5/3

06:30-16:00

1 stop14h 30m

Philadelphia

Mon 9/3

18:30-07:50

1 stop9h 20m

£526

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 4/3

08:30-16:00

1 stop12h 30m

Philadelphia

Mon 9/3

18:30-09:50

1 stop11h 20m

£526

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 9/3

08:30-17:00

1 stop12h 30m

Philadelphia

Mon 16/3

18:30-07:50

1 stop9h 20m

£545

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 10/3

06:30-17:00

1 stop14h 30m

Philadelphia

Tue 17/3

18:30-07:50

1 stop9h 20m

£570

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 5/7

06:05-18:55

2 stops17h 50m

Philadelphia

Mon 20/7

20:25-23:20

1 stop21h 55m

£603

Flights are sorted by cheapest return flights first.

Deals found on 3/2

Showing 1-10 of 20 results
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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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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