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Cheap Flights from Philadelphia to London $474.56

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Cheapest Flights from Philadelphia to London (PHL to LHR)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Philadelphia to London (PHL to LHR)

Question : In the next four weeks, what day should you book your trip?
Answer : December 25th offers bookings (as of December 5th) that are 30% below the average price for this route. Saving on flight fares means you'll have more cash to spend on your trip.

Question : Which airline can you expect delays with on this route?
Answer : Delta Air Lines flights from PHL to LHR are late 31% of the time. If you're on Delta Air Lines, be sure to sign up for the delay notifications to stay up to date with your flight's status.

Question : If travelling from PHL to LHR, how long can you expect to be in the air?
Answer : The average flight duration between PHL and LHR is 7 hours and 2 minutes.

Question : If having the most departure times is important to you, are there particular days that offer more options than others?
Answer : Wednesday has the most flight times for Philadelphia to London with 61.

Question : How does Philadelphia to London stack up against the rest of the world in overall promptness?
Answer : Using the combined on-time percentage and average delay breakdown, Philadelphia to London currently has a 2.7 out of a possible 5 star rating. A 2.7 rating means you should plan on being extra flexible with your arrival plans.