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Cheap flights from Philadelphia to London from £206

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 17/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Logo
16:50 - 14:20PHL-STN
16h 30m2 stops
Logo
22:00 - 15:49STN-PHL
22h 49m2 stops
£396
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Mon, 13 Oct - Mon, 20 Oct
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16:50 - 10:50PHL-STN
13h 00m2 stops
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22:00 - 21:38STN-PHL
28h 38m3 stops
£397
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Mon, 13 Oct - Mon, 20 Oct
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17:30 - 07:50PHL-STN
9h 20m1 stop
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06:30 - 16:00STN-PHL
14h 30m1 stop
£401
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Wed, 12 Nov - Wed, 19 Nov
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16:50 - 16:05PHL-STN
18h 15m2 stops
Logo
22:00 - 15:49STN-PHL
22h 49m2 stops
£405
Find Deal
Mon, 13 Oct - Mon, 20 Oct
Logo
16:50 - 10:50PHL-STN
13h 00m2 stops
Logo
22:00 - 21:38STN-PHL
28h 38m3 stops
£407
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Mon, 13 Oct - Mon, 20 Oct
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16:35 - 14:50PHL-STN
17h 15m2 stops
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21:45 - 15:51STN-PHL
23h 06m2 stops
£411
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Fri, 7 Nov - Tue, 11 Nov
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16:50 - 14:20PHL-STN
16h 30m2 stops
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21:25 - 21:38STN-PHL
29h 13m3 stops
£416
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Tue, 14 Oct - Tue, 21 Oct
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16:35 - 11:05PHL-STN
14h 30m2 stops
Logo
21:45 - 15:51STN-PHL
23h 06m2 stops
£422
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Sun, 26 Oct - Sun, 2 Nov
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16:50 - 14:25PHL-STN
16h 35m2 stops
Logo
22:00 - 21:38STN-PHL
28h 38m3 stops
£434
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Wed, 15 Oct - Wed, 22 Oct
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09:45 - 11:05PHL-STN
21h 20m3 stops
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20:00 - 15:51STN-PHL
24h 51m2 stops
£436
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Sun, 26 Oct - Sun, 2 Nov

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 16 September 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

Mon 13/10

16:50-14:20

2 stops16h 30m

London Stansted

Mon 20/10

22:00-15:49

2 stops22h 49m

£396

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 13/10

16:50-10:50

2 stops13h 00m

London Stansted

Mon 20/10

22:00-21:38

3 stops28h 38m

£397

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Wed 12/11

17:30-07:50

1 stop9h 20m

London Stansted

Wed 19/11

06:30-16:00

1 stop14h 30m

£401

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 13/10

16:50-16:05

2 stops18h 15m

London Stansted

Mon 20/10

22:00-15:49

2 stops22h 49m

£405

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 13/10

16:50-10:50

2 stops13h 00m

London Stansted

Mon 20/10

22:00-21:38

3 stops28h 38m

£407

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Fri 7/11

16:35-14:50

2 stops17h 15m

London Stansted

Tue 11/11

21:45-15:51

2 stops23h 06m

£411

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 14/10

16:50-14:20

2 stops16h 30m

London Stansted

Tue 21/10

21:25-21:38

3 stops29h 13m

£416

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sun 26/10

16:35-11:05

2 stops14h 30m

London Stansted

Sun 2/11

21:45-15:51

2 stops23h 06m

£422

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Wed 15/10

16:50-14:25

2 stops16h 35m

London Stansted

Wed 22/10

22:00-21:38

3 stops28h 38m

£434

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Sun 26/10

09:45-11:05

3 stops21h 20m

London Stansted

Sun 2/11

20:00-15:51

2 stops24h 51m

£436

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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 airline that flies from Philadelphia to London Stansted?

Lufthansa is the most popular carrier operating from Philadelphia to London Stansted

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

Direct flights

None
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. 9h 20m 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.

Travelling to a place near London?

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

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.

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