Flights Philadelphia → London
PHL → LHR
How long is the flight from Philadelphia to London?
The flight from Philadelphia (PHL) to London (LHR) takes 6h 44m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from Philadelphia to London is operated using a mix of Airbus A330-300 and Boeing 777 aircraft, with occasional use of the Boeing 767. The destination airport sees an impressive annual passenger traffic of 83,884,572, underscoring its significance as a major international travel hub.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Philadelphia (PHL) → London (LHR) route is operated by American Airlines, British Airways, Iberia Airlines. Across 26 flights monitored in recent months, 68% arrived on time (within 15 min of schedule), with an average delay of 16 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 19.7/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At London the average ATFM delay is 1.8 minutes (main cause: atfm). Departing from Philadelphia the average ATFM delay is 5.5 minutes.
Heading to London: what to expect in this direction
Flying from Philadelphia (PHL) to London (LHR) heads north-east for about 5,690 km, a flight time of roughly 6h 44m.
Departures from Philadelphia on this leg cluster in the evening window: about 100% of PHL-LHR flights take off then.
Air-traffic congestion: departing Philadelphia the average ATFM delay is 5.5 min (atfm); arriving into London it is 1.8 min (atfm).
Across 26 tracked PHL-LHR flights, 68% left on time with an average delay of 16 min and a 0.0% cancellation rate.
Route facts
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Iberia Airlines (IB) | 87% | 20 min | 1.2% |
| American Airlines (AA) | 79% | 6 min | 1.1% |
| British Airways (BA) | 66% | 31 min | 1.3% |
Airlines operating PHL-LHR
Airports
Frequently asked questions about PHL-LHR
The flight from Philadelphia (PHL) to London (LHR) takes 6h 44m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Philadelphia (PHL) -> London (LHR) route, on-time performance is 68% with an average delay of 16 minutes, based on 26 tracked flights.
The cancellation rate on Philadelphia-London is 0.00% across 26 monitored flights.
The route is operated by 3 airlines: American Airlines, British Airways, Iberia Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at London, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
