Flights London → Philadelphia
LHR → PHL
How long is the flight from London to Philadelphia?
The flight from London (LHR) to Philadelphia (PHL) takes 7h 27m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
This flight route operates from London to Philadelphia, with an average on-time performance rate of 77%. Over the course of a year, it sees approximately 15 flights using aircraft such as the Airbus A330-300, Boeing 777, and Boeing 767, with each flight typically experiencing around 14.9 minutes of delay on average. The destination airport in Philadelphia handles nearly 28 million passengers annually.
The London (LHR) → Philadelphia (PHL) route is operated by American Airlines, British Airways, Iberia Airlines. Across 29 flights monitored in recent months, 76% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 12.3/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Philadelphia the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from London the average ATFM delay is 1.8 minutes.
Heading to Philadelphia: what to expect in this direction
Flying from London (LHR) to Philadelphia (PHL) heads west for about 5,690 km, a flight time of roughly 7h 27m.
Departures from London on this leg cluster in the midday window: about 100% of LHR-PHL flights take off then.
Air-traffic congestion: departing London the average ATFM delay is 1.8 min (atfm); arriving into Philadelphia it is 5.5 min (atfm).
Across 29 tracked LHR-PHL flights, 76% left on time with an average delay of 13 min and a 0.0% cancellation rate.
Route facts
Flights on this route
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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 LHR-PHL
Airports
Frequently asked questions about LHR-PHL
The flight from London (LHR) to Philadelphia (PHL) takes 7h 27m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the London (LHR) -> Philadelphia (PHL) route, on-time performance is 76% with an average delay of 13 minutes, based on 29 tracked flights.
The cancellation rate on London-Philadelphia is 0.00% across 29 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 Philadelphia, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
The London-Philadelphia route is about 5,690 km: for a cancellation (with less than 14 days' notice), a delay over 3 hours, or denied boarding, UK261 compensation is £520, barring extraordinary circumstances.
