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Cheap flights from London Stansted Airport to Philadelphia from £379

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
STN — PHL
7 12月 — 14 12月1
1 adult
1 adult, Economy, 0 bags

Find 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 11月 2025.

週五 5/1206:30STN - PHL
1 stop14h 30mMultiple Airlines
週三 10/1217:30PHL - STN
1 stop9h 20mMultiple Airlines
Deal found 6/11£474
週日 9/1106:30STN - PHL
1 stop14h 30mMultiple Airlines
週日 16/1117:30PHL - STN
1 stop18h 05mMultiple Airlines
Deal found 6/11£557
週二 2/1219:35STN - PHL
3 stops24h 15mMultiple Airlines
週二 9/1217:40PHL - STN
2 stops19h 00mMultiple Airlines
Deal found 5/11£615
週一 8/1208:05STN - PHL
1 stop12h 25mMultiple Airlines
週一 15/1219:55PHL - STN
1 stop13h 10mMultiple Airlines
Deal found 6/11£619
週四 20/1107:40STN - PHL
1 stop13h 00mMultiple Airlines
週一 24/1119:55PHL - STN
1 stop19h 05mMultiple Airlines
Deal found 5/11£624
週一 24/1109:35STN - PHL
2 stops34h 55mMultiple Airlines
週五 5/1219:55PHL - STN
1 stop18h 50mMultiple Airlines
Deal found 6/11£632
週三 12/1106:30STN - PHL
1 stop14h 30mMultiple Airlines
週三 19/1117:30PHL - STN
1 stop16h 35mMultiple Airlines
Deal found 5/11£667
週二 16/1206:30STN - PHL
1 stop14h 30mMultiple Airlines
週三 31/1217:30PHL - STN
1 stop9h 20mMultiple Airlines
Deal found 6/11£688
週一 15/1208:30STN - PHL
1 stop12h 30mMultiple Airlines
週三 31/1217:30PHL - STN
1 stop9h 20mMultiple Airlines
Deal found 6/11£690

Cheap 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 11月 2025.

Round-trip from

£474

One-way from

£379

Popular in

December

Cheapest in

February

Average price

£554
5/12-10/12
  • 5/12-10/12
  • 2 total stops
  • 23h 50m total
  • London to Philadelphia
Search Deals
15/11
  • 15/11
  • 3 total stops
  • 59h 07m total
  • London to Philadelphia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£18 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 November 2025
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 11月 2025.
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

週五 5/12

06:30-16:00

1 stop14h 30m

Philadelphia

週三 10/12

10:24-07:50

2 stops16h 26m

£535

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週一 8/12

08:05-15:30

1 stop12h 25m

Philadelphia

週一 15/12

19:55-14:05

1 stop13h 10m

£650

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週四 26/2

20:05-20:50

2 stops29h 45m

Philadelphia

週一 9/3

18:30-07:50

1 stop9h 20m

£678

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週三 19/11

07:40-08:53

3 stops30h 13m

Philadelphia

週二 25/11

17:30-07:50

1 stop9h 20m

£693

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週一 17/11

08:30-16:00

1 stop12h 30m

Philadelphia

週日 23/11

17:30-07:50

1 stop9h 20m

£701

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週三 17/12

07:40-23:34

3 stops44h 54m

Philadelphia

週日 4/1

17:40-22:00

2 stops23h 20m

£713

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週日 14/12

06:30-16:00

1 stop14h 30m

Philadelphia

週一 29/12

17:30-07:50

1 stop9h 20m

£722

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週六 6/12

06:30-16:00

1 stop14h 30m

Philadelphia

週六 13/12

17:30-09:50

1 stop11h 20m

£726

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週一 15/12

08:30-16:00

1 stop12h 30m

Philadelphia

週日 28/12

17:30-07:50

1 stop9h 20m

£726

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

週一 1/12

08:05-00:26

3 stops45h 21m

Philadelphia

週五 12/12

10:22-23:55

3 stops32h 33m

£732

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 21 results
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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.

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to Philadelphia

What is the cheapest month to book a flight from London Stansted Airport to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from London Stansted Airport to Philadelphia (average of £99). Flying from London Stansted Airport to Philadelphia in July is currently the most expensive (average of £499). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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.

  • What is the cheapest month to book a flight from London Stansted Airport to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from London Stansted Airport to Philadelphia (average of £99). Flying from London Stansted Airport to Philadelphia in July is currently the most expensive (average of £499). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Stansted to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Stansted to Philadelphia?

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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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