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

Prices for flights from London Stansted Airport to Philadelphia Airport were last updated today.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The required travel and health documents for your Philadelphia 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 Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£213 Cheap Flights from London Stansted Airport to Philadelphia in 2026

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Find the cheapest flights from London Stansted Airport to Philadelphia

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17:55 - 14:47

STN

PHL

25h 52m3 stops

15:30 - 20:05

PHL

STN

23h 35m3 stops

£479Multiple Airlines

Fri, 6 Feb - Sun, 8 Feb

06:00 - 22:46

STN

PHL

21h 46m3 stops

15:30 - 22:15

PHL

STN

25h 45m3 stops

£492Multiple Airlines

Wed, 4 Feb - Wed, 11 Feb

11:10 - 18:55

STN

PHL

12h 45m1 stop

20:25 - 12:50

PHL

STN

11h 25m1 stop

£502Multiple Airlines

Sat, 2 May - Wed, 6 May

05:55 - 16:49

STN

PHL

39h 54m3 stops

05:30 - 22:55

PHL

STN

36h 25m3 stops

£504Multiple Airlines

Wed, 28 Jan - Tue, 3 Feb

13:50 - 14:47

STN

PHL

29h 57m3 stops

16:05 - 23:25

PHL

STN

26h 20m3 stops

£515Multiple Airlines

Sat, 21 Feb - Sat, 28 Feb

08:10 - 16:48

STN

PHL

36h 38m3 stops

05:00 - 22:05

PHL

STN

37h 05m3 stops

£525Multiple Airlines

Tue, 17 Mar - Mon, 23 Mar

22:00 - 21:33

STN

PHL

28h 33m3 stops

16:20 - 16:50

PHL

STN

19h 30m3 stops

£533Multiple Airlines

Tue, 5 May - Tue, 12 May

06:00 - 16:52

STN

PHL

39h 52m3 stops

09:53 - 23:50

PHL

STN

32h 57m3 stops

£555Multiple Airlines

Thu, 23 Apr - Sun, 26 Apr

06:30 - 17:00

STN

PHL

14h 30m1 stop

18:30 - 11:35

PHL

STN

13h 05m1 stop

£581Multiple Airlines

Thu, 12 Mar - Thu, 19 Mar

15:40 - 14:47

STN

PHL

28h 07m3 stops

07:50 - 15:20

PHL

STN

26h 30m3 stops

£582Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

momondo Fare Finder

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

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 6/2

17:55-14:47

3 stops25h 52m

Philadelphia

Sun 8/2

15:30-20:05

3 stops23h 35m

£479

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 4/2

06:00-22:46

3 stops21h 46m

Philadelphia

Wed 11/2

15:30-22:15

3 stops25h 45m

£492

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 2/5

11:10-18:55

1 stop12h 45m

Philadelphia

Wed 6/5

20:25-12:50

1 stop11h 25m

£502

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 28/1

05:55-16:49

3 stops39h 54m

Philadelphia

Tue 3/2

05:30-22:55

3 stops36h 25m

£504

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sat 21/2

13:50-14:47

3 stops29h 57m

Philadelphia

Sat 28/2

16:05-23:25

3 stops26h 20m

£515

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 17/3

08:10-16:48

3 stops36h 38m

Philadelphia

Mon 23/3

05:00-22:05

3 stops37h 05m

£525

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Tue 5/5

22:00-21:33

3 stops28h 33m

Philadelphia

Tue 12/5

16:20-16:50

3 stops19h 30m

£533

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 23/4

06:00-16:52

3 stops39h 52m

Philadelphia

Sun 26/4

09:53-23:50

3 stops32h 57m

£555

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Thu 12/3

06:30-17:00

1 stop14h 30m

Philadelphia

Thu 19/3

18:30-11:35

1 stop13h 05m

£581

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Fri 20/2

15:40-14:47

3 stops28h 07m

Philadelphia

Fri 27/2

07:50-15:20

3 stops26h 30m

£582

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Stansted Airport to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Philadelphia?

Our data shows that Wednesday is the least expensive day to fly to Philadelphia. Tickets to fly out on this day can be as low as £592. On the other hand, Sunday is the most expensive day to depart from London Stansted Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £644.

What is the cheapest time of day to depart on your flight to Philadelphia?

The cheapest time of day to fly to Philadelphia is at midday when flights can be purchased for as low as £602. In the morning is when there is more demand to fly to Philadelphia, so prices are often more expensive at around £621 per ticket.

When to book flights from London Stansted Airport to Philadelphia

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

Estimated return price

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

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

Fastest flight time	14h 30m
Direct flights	None

The fastest flight from London Stansted Airport to Philadelphia takes 14h 30m

There are no direct flights from London Stansted Airport to Philadelphia. There are no popular flight routes from London Stansted Airport to Philadelphia.

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How far is London Stansted to Philadelphia by plane?
Philadelphia is 3545.2 mi away from London Stansted. A reasonable flight in good conditions will take 14h 30m.
When did momondo last update prices for flights from London Stansted Airport to Philadelphia Airport?
Prices for flights from London Stansted Airport to Philadelphia Airport were last updated today.
How old do you have to be to fly from London Stansted Airport to Philadelphia Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The required travel and health documents for your Philadelphia 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 Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Philadelphia for you.

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

All flight searches from London to Philadelphia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Philadelphia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of London to Philadelphia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.