Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.

Cheap Flight Deals From Philadelphia (ILG) to London (LON) Starting at $427

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This Weekend's Flight Deals from Philadelphia to London

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Airfares from $427 One Way, $743 Round Trip from Philadelphia to London

Prices starting at $743 for return flights and $427 for one-way flights to London were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

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More About Flying To London from Philadelphia

Route Information for Flights from Philadelphia to London

Origin Airport IATA Code ILG
Destination Airport IATA Code LON
Distance 3535 mi
Direct Flight Airlines American Airlines, Qatar Airways, Finnair, Iberia, Malaysia Airlines, EL AL, British Airways
Earliest Flight Arrival 6:45AM UTC
Latest Flight Arrival 6:45AM UTC

Get a discount on your flights from Philadelphia to London by checking out the bargain rates you can find on Orbitz!

Flights from Philadelphia to London depart regularly from Philadelphia International Airport. The largest airport in the Delaware River Region, Philadelphia International is easily accessed from downtown Philadelphia, as taxies to the airport charge a flat rate and regional rail service (SEPTA's Airport line) service its terminals. If your flights from Philadelphia to London are during spring or Thanksgiving breaks, many local schools operate shuttles to the Airport as a benefit to students! The exhibitions program at the Philadelphia airport provides art exhibits throughout the concourses and terminals for you to peruse while waiting for your Philadelphia to London flights. If you're hungry, don't forget to stop and grab something to eat or drink at the airport's large shopping concourse!

Disembark from your Philadelphia to London flights at London Heathrow Airport. London weather is more temperate than Philadelphia's, so you'll only have to prepare for maximum temperatures of the mid-70s in the middle of summer and almost freezing temperatures in winter (which is nothing compared to chilly Philly winter temperatures!). Signs will direct you from your Philadelphia to London flights to passport control, baggage claim and then customs. Once through these checkpoints, you'll find it easy to get where you need to be, as transportation information and directions are available at the airport's information desks, whose staff will direct you to buses, trains, taxis or rental cars.

Flights from Philadelphia to London - Frequently Asked Questions

Am I able to catch a flight from Philadelphia to London now?

Head to the Covid-19 Travel Advisor for the most comprehensive information on travel restrictions and quarantine requirements when flying from Philadelphia to London.

Are there non-stop flights from Philadelphia to London?

You can fly directly from Philadelphia to London with American Airlines. It's the only carrier that travels nonstop from PHL to London Airport (LHR-Heathrow).

What is the shortest flight from Philadelphia to London?

The shortest flight from Philadelphia, PA Airport (PHL-Philadelphia Intl.) to Heathrow Airport (LHR) is 8 hours. Bring something extra to keep you amused, like that new best-seller or a sketch pad.

What airlines fly from Philadelphia to London most frequently?

American Airlines operates the most services from Philadelphia to London, with 30 flights every month.

If I am not able to travel due to COVID-19, can I cancel my flight to London?

We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to London have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

Are there flights to London with flexible change policies?

In most cases you'll have the option to reschedule your flight to London without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

What is the cheapest day of the week to fly?

Consider flying out early in the week to save on your airfare. Orbitz data from 2020 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.

What is the cheapest month to fly?

We won't keep you guessing, according to Orbitz data the cheapest month to fly is August. Perfect for those who need a weekend getaway, or just a break from it all before the weather changes. Be aware that the most expensive time to fly is the height of summer, with ticket prices peaking in the month of June.

How can I save money on flights?

To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2020 saved up to 45% on their airfares. Get mixing and matching today!

*According to flight demand on Orbitz.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.