Prices were found in the last 72 hours and may change — check the exact price when you continue.
On this page, you can find and book flights from London to Philadelphia. The flight on this route covers a distance of 5,715 km, with a frequency of approximately 22 flights per week.
Regular air service is provided by carriers such as British Airways, American Airlines, and Iberia. Before booking, we recommend checking the routes to the airport in London and transportation options from the airport at your destination.
Below is a calendar of the lowest flight ticket prices for London — Philadelphia by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $394 in F, and the most expensive are around $794 in y. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
London → Philadelphia, average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | $510 | low | May | $668 | medium | Sep | $547 | medium |
| Feb | $485 | low | Jun | $631 | medium | Oct | $510 | low |
| Mar | $522 | low | Jul | $850 | high | Nov | $522 | low |
| Apr | $607 | medium | Aug | $1,092 | high | Dec | $583 | medium |
Some values are estimated based on seasonality.
The warmest month in Philadelphia is July, when temperatures reach +30.3°C, though this period is also considered the rainiest. January sees the lowest temperatures, dropping to -1.5°C, while maintaining moderate humidity levels.
The lowest flight cost was recorded in September, starting $394. Prices peak in April, when airfares for this route start $554.
September is the most balanced month for a trip, offering pleasant weather and the lowest ticket rates. To save on your budget, it is best to avoid flying in mid-spring, when the most significant price increases occur.
There are 6 airlines operating on the route between London and Philadelphia, with British Airways and American Airlines holding the leading positions. The majority of traffic consists of direct flights operated daily by these carriers. A detailed schedule, flight times, and connecting route options are provided in the list below.
Flights London — Philadelphia depart from Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport and arrive at Philadelphia International Airport and Trenton-Mercer Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
A direct flight covers a distance of 5,715 km and lasts an average of about 7 hours, depending on the airline and weather conditions.
Regular flights are operated by British Airways, American Airlines, Iberia, Finnair, and Aer Lingus, offering both direct options and connecting routes.
Ticket prices change constantly based on demand; you can always check the current minimum for your dates in the low-price calendar on this page.
The main destination for flights from London is Philadelphia International Airport (PHL), located in close proximity to the city.
The most favorable offers are usually available when purchasing 2–3 months before the trip, as well as during seasonal airline sales.
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