LHR → PHL
Cheap flights from London to Philadelphia
We track fares from London to Philadelphia, United States every day. Across 35 prices we've logged, the cheapest was €764 return and a typical fare runs around €777. The cheapest month to fly is usually Sept 2026.
Cheapest seen
€764
Typical price
€777
Cheapest month
Sept 2026
Non-stop
With a stop
No live deal on this exact route right now — but the typical fare is around €777. Search your dates below, or browse all deals to United States.
Cheapest months to fly
The typical cheapest fare by month, from our tracking — a guide only. Check the live price on Aviasales before booking.
| Month | Typical from | Check price |
|---|---|---|
| Sept 2026 | €777 | Check on Aviasales → |
Each link opens the live Aviasales search for that month, where you can pick the exact cheapest dates.
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London to Philadelphia: the basics
- Route
- London (LHR) → Philadelphia (PHL)
- Distance
- 5,690 km
- Non-stop
- No (with a stop)
- Airlines seen
- B6, British Airways, SAS, VS
Planning the trip? United States: what to see and when to go covers where to go and when.
Where these flights connect
There is no non-stop flight from London to Philadelphia. Based on the airlines that fly this route, connections are usually through Copenhagen — worth checking when you compare fares.