How long is the flight from London to Philadelphia?

Direct flights from London to Philadelphia typically take around 7h 11m. The great-circle distance is approximately 5,689 km.

What is the cheapest day to fly from London to Philadelphia?

As a general industry pattern, mid-week flights (Tuesday and Wednesday) tend to be cheaper — see the cheapest-day page for real fare data on this route where available.

Which airlines fly from London to Philadelphia?

Use our flight search above to see live availability and compare prices across airlines flying London to Philadelphia.

How far in advance should I book a flight from London to Philadelphia?

For the best fares, aim to book 4–8 weeks ahead during peak season and 2–4 weeks during off-peak periods. Last-minute deals can sometimes appear within 14 days of departure.

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Direct Flights: London to Philadelphia

7h 11m

Flight time

5,689 km

Distance

Airport pairs

Find non-stop flights from London to Philadelphia — no layovers, no connections. The route covers 5,689 km with a typical flight time of 7h 11m. Philadelphia is located in United States.

Direct airport connections

LHR

London Heathrow Airport

→

PHL