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 Philadelphia to London

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of February. 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: 18 Jan - 24 Jan

Flights from just £377

£1,359

£816

£755

£827

£755

£535

£505

£389

£1,162

£796

£377

£427

NovemberDecemberJanuary

Flight Duration10 hoursFlights between Philadelphia and London take, on average, 10 hours minutes, but the time can vary according to other factors

Cheapest flight£254Cheapest price for a flight between Philadelphia and London found by our customers in the last 72 hours

Origin airportPhiladelphia International AirportWhen flying from Philadelphia to London

Destination airportsGatwick Airport, Heathrow Airport, London Luton Airport, London Stansted Airport, London City AirportWhen travelling from Philadelphia to London

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

Airlines flying this routeBritish Airways, American Airlines, IberiaAirline(s) with flights between Philadelphia to London

One-way average Price£795The average price for a flight Philadelphia - London at Opodo is £795, based on the price of last 6 months

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

Airlines that fly from Philadelphia to London

Distance: 3,542 mi

Philadelphia airports

London airports

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

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

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

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

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

Book your Philadelphia to London flight

Search direct and connecting flights from Philadelphia to London (United Kingdom) 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 £254, although the price you're shown will vary with your travel dates and departure times.

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

Airports and airlines on the Philadelphia–London route

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

Arrival airport: Gatwick Airport (LGW)

Tips for cheaper flights from Philadelphia to London

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

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 London. Adding car hire to the same booking can save you money too.

Frequently asked questions about flights from Philadelphia to London

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

When you fly from Philadelphia to London the average price is £795. 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 Philadelphia to London at Opodo?

The cheapest price for a flight from Philadelphia to London is 254 £. 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 Philadelphia to London?

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

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

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

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

The total flight time between Philadelphia and London is of around 10 hours 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 are the airlines with flights from Philadelphia to London?

Airlines with direct flights departing from Philadelphia to London are:

American Airlines.
Iberia.
British Airways.

American Airlines

Aer Lingus
Lufthansa

Plan your trip

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