£496 Cheap Flights from Philadelphia (PHL) to London (STN)

View £496 flight on Fri, 1 May 2026Opens in a new window

Popular airlines from Philadelphia International Airport (PHL) to Stansted Airport (STN)

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Cheap Flights from Philadelphia (PHL) to London (STN)

Prices were available within the past 7 days and start at £496 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to London City LCY. Cheapest and Closest option available. Average driving time to city centre is 21 minutes. Flights from £1,335
LCY
London City
CheapestClosest
Average driving time to city centre21 min
Flights from £1,335

Frequently asked questions

How do I find cheap flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
To find a cheap flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
There are approximately 7 connecting flights per day from Philadelphia Intl. (PHL) to Stansted (STN). Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), Seattle - Tacoma Intl. (SEA), and Pearson Intl. (YYZ).
What is the earliest flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from PHL to STN. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
A flight from PHL to STN with a layover takes around 12 hours 50 minutes, with the route covering approximately 3,556 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
Select the "Business class" and "First class" filters when looking for PHL to STN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) flight with Expedia?
It's easy to earn miles on a Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Philadelphia Intl. (PHL)?
From Philadelphia Intl. (PHL), you can fly into London City (LCY), London Intl. (YXU), Heathrow (LHR) and Gatwick (LGW) in London. Some flights may connect through major hubs like Detroit Metropolitan Wayne County (DTW), Logan Intl. (BOS), Hartsfield-Jackson Atlanta Intl. (ATL) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) at the last minute?
Typically, booking a last minute flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) flight and hotel package?
Securing a Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted)?
If you booked your Philadelphia, PA (PHL-Philadelphia Intl.) to London (STN-Stansted) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Stansted
Distance
5688 km

Book with confidence

Compare flights from Philadelphia to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Philadelphia to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Stansted in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Philadelphia Intl. to Stansted.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Philadelphia Intl. (PHL) to Stansted (STN)

The easiest way to view the best deals on flights from Philadelphia to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Philadelphia Intl. to Stansted start at just and range up to .  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Philadelphia and London
  • booking your flight during , the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Philadelphia to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Philadelphia Intl. to Stansted for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Philadelphia to London easily and book with confidence

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