Cheapest return flights from Philadelphia to London in July from 803€

Best time to book flights for Philadelphia (PHL) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LHR) in July 2025 (see full year).

Return flights

31 Jul - 30 Aug Aer Lingus
03 Jul - 17 Jul Aer Lingus
30 Jul - 06 Aug United
06 Jul - 23 Jul Delta
10 Jul - 17 Jul United
17 Jul - 25 Jul United
21 Jul - 10 Aug American Airlines
20 Jul - 27 Jul United
03 Jul - 21 Jul Air Canada
03 Jul - 17 Jul British Airways direct
03 Jul - 21 Jul British Airways direct
07 Jul - 08 Jul British Airways
07 Jul - 08 Jul British Airways direct
28 Jul - 04 Aug British Airways direct

Also check the deals for one-way flights from Philadelphia to London in July.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in London

Cheap car rent in London