Fly nonstop from Philadelphia to London for $588 round-trip on American Airlines/British Airways.
Seen below, we found seats departing PHL on Wednesday, May 10, returning from LHR on Saturday, May 20.
Other dates are available for departures through May.
Visit our fare details for booking info.
Need a room in London? Here's what's available for the above dates on Hotelwatchdog.
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