Cheapest return flights from Philadelphia to London in July from $987

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

08 Jul - 30 Jul Lufthansa
09 Jul - 30 Jul Lufthansa
09 Jul - 30 Jul British Airways direct
08 Jul - 30 Jul British Airways direct
17 Jul - 25 Jul jetBlue
15 Jul - 22 Jul United
10 Jul - 30 Jul jetBlue
10 Jul - 30 Jul British Airways direct
17 Jul - 25 Jul Finnair direct
25 Jul - 01 Aug United
28 Jul - 04 Aug Air Canada
24 Jul - 28 Jul Aer Lingus
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