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

You can take advantage of momondo’s Price Alerts by first searching for your flights to Philadelphia from London Stansted Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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 were last updated today.

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 travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$273 Cheap Flights from Philadelphia to London Stansted Airport in 2025/26

1 adult

0 bags

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One-way

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Enter your travel dates to find the best prices.

5:30 pm - 9:50 am

PHL

STN

11h 20m1 stop

8:30 am - 5:00 pm

STN

PHL

12h 30m1 stop

$638Multiple Airlines

Tue, Mar 3 - Mon, Mar 9

3:30 pm - 4:45 pm

PHL

STN

20h 15m3 stops

10:55 am - 2:47 pm

STN

PHL

32h 52m3 stops

$723Multiple Airlines

Mon, Feb 9 - Mon, Feb 16

6:00 am - 7:50 am

PHL

STN

20h 50m2 stops

6:30 am - 5:00 pm

STN

PHL

14h 30m1 stop

$727Multiple Airlines

Tue, Mar 3 - Tue, Mar 10

3:30 pm - 2:05 pm

PHL

STN

17h 35m2 stops

7:55 pm - 2:47 pm

STN

PHL

23h 52m3 stops

$730Multiple Airlines

Mon, Feb 9 - Mon, Feb 16

5:30 pm - 9:50 am

PHL

STN

11h 20m1 stop

11:30 am - 10:36 pm

STN

PHL

15h 06m2 stops

$748Multiple Airlines

Tue, Mar 3 - Mon, Mar 9

2:52 pm - 2:20 pm

PHL

STN

18h 28m2 stops

8:30 am - 4:00 pm

STN

PHL

12h 30m1 stop

$792Multiple Airlines

Mon, Feb 23 - Tue, Mar 3

6:30 pm - 2:20 pm

PHL

STN

15h 50m1 stop

6:30 am - 7:25 pm

STN

PHL

16h 55m2 stops

$811Multiple Airlines

Tue, Mar 10 - Tue, Mar 17

5:30 pm - 9:50 am

PHL

STN

11h 20m1 stop

6:30 am - 5:00 pm

STN

PHL

14h 30m1 stop

$815Multiple Airlines

Tue, Mar 3 - Wed, Mar 11

6:30 pm - 2:20 pm

PHL

STN

15h 50m1 stop

6:30 am - 5:00 pm

STN

PHL

14h 30m1 stop

$818Multiple Airlines

Tue, Mar 10 - Tue, Mar 17

6:30 pm - 6:20 pm

PHL

STN

19h 50m1 stop

8:30 pm - 7:00 pm

STN

PHL

27h 30m2 stops

$845Multiple Airlines

Thu, Mar 26 - Tue, Apr 7

momondo Fare Finder

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

Tue 3/3

5:30 pm-9:50 am

1 stop11h 20m

London Stansted

Mon 3/9

8:30 am-5:00 pm

1 stop12h 30m

$638

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 2/9

3:30 pm-4:45 pm

3 stops20h 15m

London Stansted

Mon 2/16

10:55 am-2:47 pm

3 stops32h 52m

$723

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 3/3

6:00 am-7:50 am

2 stops20h 50m

London Stansted

Tue 3/10

6:30 am-5:00 pm

1 stop14h 30m

$727

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 2/9

3:30 pm-2:05 pm

2 stops17h 35m

London Stansted

Mon 2/16

7:55 pm-2:47 pm

3 stops23h 52m

$730

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 3/3

5:30 pm-9:50 am

1 stop11h 20m

London Stansted

Mon 3/9

11:30 am-10:36 pm

2 stops15h 06m

$748

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Mon 2/23

2:52 pm-2:20 pm

2 stops18h 28m

London Stansted

Tue 3/3

8:30 am-4:00 pm

1 stop12h 30m

$792

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 3/10

6:30 pm-2:20 pm

1 stop15h 50m

London Stansted

Tue 3/17

6:30 am-7:25 pm

2 stops16h 55m

$811

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 3/3

5:30 pm-9:50 am

1 stop11h 20m

London Stansted

Wed 3/11

6:30 am-5:00 pm

1 stop14h 30m

$815

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Tue 3/10

6:30 pm-2:20 pm

1 stop15h 50m

London Stansted

Tue 3/17

6:30 am-5:00 pm

1 stop14h 30m

$818

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

Thu 3/26

6:30 pm-6:20 pm

1 stop19h 50m

London Stansted

Tue 4/7

8:30 pm-7:00 pm

2 stops27h 30m

$845

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 round-trip 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	9h 20m
Direct flights	None

The fastest flight from Philadelphia to London Stansted Airport takes 9h 20m

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

Search flight deals

How far is Philadelphia to London Stansted by plane?
London Stansted is 3545.2 mi away from Philadelphia. Flights usually cover this in 9h 20m, depending on flying conditions and air traffic around both airports.
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 were last updated today.
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 travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

How do I get Price Alerts for flights from Philadelphia to London Stansted Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Philadelphia from London Stansted Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Philadelphia to London Stansted Airport with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Watford

Wembley

Cobham

Folkestone

Romford

Richmond

Uxbridge

Chelmsford

Stansted

Why use momondo?

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

It is quick and easy to find Philadelphia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

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

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

Once all potential Philadelphia to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Philadelphia to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Tue 1/27

Tue 2/3

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Cheap flights from Philadelphia to London from $273

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 3/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Philadelphia to London

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to London Stansted Airport that are best for you.

When to book flights from Philadelphia to London Stansted Airport

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

Direct flights

How far is Philadelphia to London Stansted by plane?

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

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

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

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

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

How does momondo find its flight prices?

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo