Cheap Flights from London to Philadelphia

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Flight deals from London to Philadelphia

Looking for a cheap last-minute deal or the best return flight from London to Philadelphia? Find the lowest prices on one-way and return tickets right here.

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Find the cheapest month to fly from London to Philadelphia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Philadelphia flights are currently cheapest in June.

Direct flights from London to Philadelphia

Alternative London to Philadelphia routes

Looking for the cheapest, fastest or easiest route from London to Philadelphia? You could fly into the following airports instead.

London to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found£381
Cheapest month to flyJune
Average flight time8 hrs
Most popular airlineIberia
Average flights per week107

Finding cheap flights from London to Philadelphia: Frequently asked questions

There are 7 airports in Philadelphia: Philadelphia International, North Philadelphia, Blue Bell, Philadelphia Trenton-Mercer, Greater Wilmington, Atlantic City International, and Allentown.
The best price we found for a return flight from London to Philadelphia is £381. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
8 hours is the average flight time from London to Philadelphia.
Iberia, Finnair and American Airlines fly direct from London to Philadelphia.
As of May 2024, there are 107 flights per week flying from London to Philadelphia.
The cheapest month to fly from London to Philadelphia is usually June.
If you're flying from London, the cheapest airport near Philadelphia is Philadelphia International – which is 7.0 miles away from the centre of Philadelphia. We've found flights into this airport from £381.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Philadelphia on Tuesday, 25 June 2024.
Yes – the average flight time is 8 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 16°C. July is typically the warmest month in Philadelphia, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -5°C. The rainiest month is July.
The cheapest airline that flies to Philadelphia is Scandinavian Airlines. And the cheapest airline that flies to North Philadelphia Airport is British Airways.

This information is correct as of March 2016

Airlines that fly from London to Philadelphia

British Airways, Delta and American Airlines operate direct flights from London to Philadelphia, flights depart from London Heathrow Airport.

Terminal Information

London Heathrow Airport

There are four terminals London Heathrow Airport, American Airlines flights depart from Terminal 3, Delta flights depart from Terminal 4 and British Airways flights depart from Terminal 5. You can check-in online up to two hours before your flight, or check-in at the airport.

Each terminal at Heathrow Airport has a wide range of shops, restaurants and cafes to enjoy before the flight. These include World Duty Free, Boots, WHSmith, Boss, Harrods, Ted Baker, Jo Malone, Chanel, Kurt Geiger, Eat, La Salle, Rhubarb, Strada, Caviar House & Prunier Seafood Bar and Comptoir Libanais. Each terminal has airline and premium lounges, offering complimentary snacks, drinks and a quiet lounge.

Unlimited Wi-Fi access is available for passengers throughout the airport. You will also find mobile and laptop charging points in the terminals.  

Philadelphia International Airport

Philadelphia International Airport has 7 terminals, British Airways and American Airlines flights arrive into Terminal A and Delta flights arrive into Terminal D.

Philadelphia Airport is 9 miles away from downtown Philadelphia, and there are plenty of onward travel options available to get you to your final destination. These include buses, trains, taxis and car rental. Car rental desks for a variety of car hire companies can be found in each terminal, these are found after the baggage claim area.

The SEPTA train has stops at Terminal A and D; it is the quickest way to reach Philadelphia. Trains depart every 30 minutes and have a journey time of 25 minutes. There are a number of bus services departing from outside of the terminals, routes 32, 108 and 115 run to destinations in downtown Philadelphia.

Taxis are available from outside of the airport, taxis into Central Philadelphia have a fixed fare in operation. This is $28.50.

What to expect in Philadelphia

Philadelphia has played an important role in the history of the USA, this can be explored through museums and attractions throughout the city, alongside new cultural venues, festivals and events.

The climate in Philadelphia is typical of the east of the USA, it offers more distinct seasons compared to London, summers are hot and humid with high temperatures over 30oc, and winters are cold with frequent snowfall and below freezing temperatures.

The cost of living in Philadelphia is lower than London, a three course meal for two will cost around $62.50, around 10% cheaper and a one-way trip on public transport is $2.25.

Philadelphia, Pennsylvania is 5 hours behind London, UK.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.