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Cheap flights from Philadelphia to London from £196

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to London departing on 27/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:30 - 23:25
PHL
-
STN
26h 55m3 stops
Multiple Airlines Logo
07:40 - 22:46
STN
-
PHL
20h 06m3 stops
£459Multiple Airlines
Thu, 29 Jan - Tue, 3 Feb
Multiple Airlines Logo
07:50 - 16:35
PHL
-
STN
27h 45m3 stops
Multiple Airlines Logo
06:00 - 22:46
STN
-
PHL
21h 46m3 stops
£461Multiple Airlines
Sat, 28 Feb - Sat, 7 Mar
Multiple Airlines Logo
20:30 - 12:50
PHL
-
STN
11h 20m1 stop
Multiple Airlines Logo
06:30 - 19:00
STN
-
PHL
17h 30m1 stop
£462Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
17:30 - 07:50
PHL
-
STN
9h 20m1 stop
Multiple Airlines Logo
08:30 - 17:00
STN
-
PHL
12h 30m1 stop
£476Multiple Airlines
Mon, 2 Mar - Sun, 8 Mar
Multiple Airlines Logo
20:30 - 12:45
PHL
-
STN
11h 15m1 stop
Multiple Airlines Logo
11:35 - 19:00
STN
-
PHL
12h 25m1 stop
£482Multiple Airlines
Tue, 5 May - Tue, 19 May
Multiple Airlines Logo
16:35 - 21:20
PHL
-
STN
23h 45m3 stops
Multiple Airlines Logo
21:45 - 22:46
STN
-
PHL
30h 01m2 stops
£484Multiple Airlines
Mon, 19 Jan - Tue, 27 Jan
Multiple Airlines Logo
15:30 - 13:30
PHL
-
STN
17h 00m2 stops
Multiple Airlines Logo
08:10 - 14:47
STN
-
PHL
35h 37m2 stops
£494Multiple Airlines
Thu, 29 Jan - Tue, 3 Feb
Multiple Airlines Logo
15:30 - 16:35
PHL
-
STN
20h 05m2 stops
Multiple Airlines Logo
18:00 - 14:47
STN
-
PHL
25h 47m3 stops
£495Multiple Airlines
Sat, 7 Feb - Mon, 9 Feb
Multiple Airlines Logo
20:30 - 12:50
PHL
-
STN
11h 20m1 stop
Multiple Airlines Logo
06:30 - 19:00
STN
-
PHL
17h 30m1 stop
£500Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
15:30 - 16:35
PHL
-
STN
20h 05m3 stops
Multiple Airlines Logo
20:00 - 15:49
STN
-
PHL
23h 49m2 stops
£502Multiple Airlines
Fri, 6 Mar - Sat, 14 Mar

momondo Fare Finder

 
Customise your flight search to find flights from Philadelphia to London Stansted Airport 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, momondo users made 279,928 searches. Data last updated 31 December 2025.
Use the filters below to find and compare flights from Philadelphia to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Thu 29/1

15:30-23:25

3 stops26h 55m

London Stansted

Tue 3/2

07:40-22:46

3 stops20h 06m

£459

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sat 28/2

07:50-16:35

3 stops27h 45m

London Stansted

Sat 7/3

06:00-22:46

3 stops21h 46m

£461

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Wed 15/4

20:30-12:50

1 stop11h 20m

London Stansted

Wed 22/4

06:30-19:00

1 stop17h 30m

£462

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 2/3

17:30-07:50

1 stop9h 20m

London Stansted

Sun 8/3

08:30-17:00

1 stop12h 30m

£476

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 5/5

20:30-12:45

1 stop11h 15m

London Stansted

Tue 19/5

11:35-19:00

1 stop12h 25m

£482

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 19/1

16:35-21:20

3 stops23h 45m

London Stansted

Tue 27/1

21:45-22:46

2 stops30h 01m

£484

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Thu 29/1

15:30-13:30

2 stops17h 00m

London Stansted

Tue 3/2

08:10-14:47

2 stops35h 37m

£494

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sat 7/2

15:30-16:35

2 stops20h 05m

London Stansted

Mon 9/2

18:00-14:47

3 stops25h 47m

£495

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 4/5

20:30-12:50

1 stop11h 20m

London Stansted

Mon 11/5

06:30-19:00

1 stop17h 30m

£500

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Fri 6/3

15:30-16:35

3 stops20h 05m

London Stansted

Sat 14/3

20:00-15:49

2 stops23h 49m

£502

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

When to book flights from Philadelphia to London Stansted Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to London Stansted Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Philadelphia to London Stansted Airport (PHL to STN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to London Stansted Airport

Fastest flight time

10h 35m

Direct flights

None
The fastest flight from Philadelphia to London Stansted Airport takes 10h 35m
There are no direct flights from Philadelphia to London Stansted Airport. There are no popular flight routes from Philadelphia to London Stansted Airport.
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  • How far is Philadelphia to London Stansted by plane?

    A flight from Philadelphia to London Stansted will travel around 3545.2 mi. 10h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Philadelphia Airport to London Stansted Airport?

    Prices for flights from Philadelphia Airport to London Stansted Airport are updated daily.

  • How old do you have to be to fly from Philadelphia Airport to London Stansted Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to London Stansted Airport.

  • What documentation or ID do you need to fly to London Stansted Airport?

    The required travel and health documents for your London Stansted Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Philadelphia to London Stansted Airport?

    Confirm your travel details to search for the latest offers for flights from Philadelphia to London Stansted Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Philadelphia to London Stansted Airport with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Hayes
Chelmsford
Dover
Worthing
Hounslow
Bedford
Colchester
Ramsgate
Folkestone

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to London. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to London with flexible booking policies on momondo?

Yes. All flights to London from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to London?

Once you have performed a search for Philadelphia to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Stansted Airport trip

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