The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from London to Philadelphia

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the end of November. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.

Filter by

week: 30 Nov - 6 Dec

Flights from just £403

£890

£713

£583

£587

£656

£403

£474

£768

£596

£1,043

£441

£500

OctoberNovemberDecemberJanuary

Flight Duration15 h and 5 mFlights between London and Philadelphia take, on average, 15 h and 5 m minutes, but the time can vary according to other factors

Cheapest flight£380Cheapest price for a flight between London and Philadelphia found by our customers in the last 72 hours

Origin airportsGatwick Airport, Heathrow Airport, London Stansted Airport, London Luton Airport, London City AirportFor flights from London to Philadelphia

Destination airportPhiladelphia International AirportFor the route from London to Philadelphia

High seasonMarchAccording to search data from our customers, March is the busiest time to fly from London to Philadelphia

Airlines flying this routeAmerican Airlines, British Airways, FinnairAirline(s) with flights between London to Philadelphia

One-way average Price£1004The average price for a flight London - Philadelphia at Opodo is £1004, based on the price of last 6 months

Best time to bookMarchAccording to real data September is the most popular time to book a flight to Philadelphia when departing from London

Airlines that fly from London to Philadelphia

Exchange rate

1 GBP = 1.33 USD

1 USD = 0.75 GBP

Last checked on Tue 27/10

Distance: 3,542 mi

London airports

Gatwick Airport (LGW)How far from city centre: 25 mi

Heathrow Airport (LHR)How far from city centre: 14 mi

London Stansted Airport (STN)How far from city centre: 30 mi

London Luton Airport (LTN)How far from city centre: 28 mi

London City Airport (LCY)How far from city centre: 8 mi

Philadelphia airports

Philadelphia International Airport (PHL)How far from city centre: 6 mi

Book your London to Philadelphia flight

Search direct and connecting flights from London to Philadelphia (United States) with Opodo. When your results appear, sort them by timing or fare and book whichever option fits your plans best.

The cheapest fare booked on this route in recent days was £380, although the price you're shown will vary with your travel dates and departure times.

Flying non-stop from London to Philadelphia takes roughly 9 h and 33 m, whereas journeys with a layover will take longer.

Airports and airlines on the London–Philadelphia route

Plan your trip with confidence by checking the relevant airports and comparing the airlines that fly this route.

Departure airport: Gatwick Airport (LGW)
Arrival airport: Philadelphia International Airport (PHL)

The weather in Philadelphia

Driest month: January
Wettest month: October

Tips for cheaper flights from London to Philadelphia

A few ways to bring down the cost of your flight from London to Philadelphia:

Flexible dates: check fares across two or three departure days. Going a day earlier or later can make a real difference to what you pay.
Baggage allowance: see what's included in each fare before booking, so you're not stung by unexpected charges at the airport.
Airports on your route: double-check which airports you'll fly from and into, particularly if the city has more than one. It makes it easier to plan transfers and work out the full cost of getting around.

After a bigger saving? Book a Flight + Hotel package to combine the two in a single booking and unlock exclusive discounts on your stay in Philadelphia. Adding car hire to the same booking can save you money too.

Frequently asked questions about flights from London to Philadelphia

On average, how much is the price of a flight from London to Philadelphia?

When you fly from London to Philadelphia the average price is £1004. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.

How can I find cheap flights from London to Philadelphia at Opodo?

The cheapest price for a flight from London to Philadelphia is 380 £. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.

When is the best time to book a flight from London to Philadelphia?

The most popular months to book a flight from London to Philadelphia are September, May and August, based on the searches of our customers.

When is the best time to travel from London to Philadelphia?

The best time of the year to go to Philadelphia when flying from London depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, July is the top 1º month to fly to Philadelphia from London in terms of searches from our customer, followed by June and August. If you prefer to avoid high peaks of turism, however, and escape a crowded period, April, February and May are the months with less volume of searchs for the route London - Philadelphia.

How long does the flight take to go from London to Philadelphia?

The total flight time between London and Philadelphia is of around 15 h and 5 m on average, considering an average distance of 3,541.66 mi, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).

Which airports have flights between London and Philadelphia?

The main airport route flying between London and Philadelphia is: Gatwick Airport (LHR) to Philadelphia International Airport(PHL). This route is covered by the following airline(s):

Which are the airlines with flights from London to Philadelphia?

Airlines with direct flights departing from London to Philadelphia are:

American Airlines.
British Airways.
Finnair.

American Airlines

JetBlue Airways
Air Canada

Plan your trip

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