Cheapest one-way flights from Philadelphia to London in August from $361

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

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to London (LHR) in August 2025 (see full year).

One-Way flights

08 Aug Spirit Airlines
11 Aug Spirit Airlines
08 Aug Iberia direct
20 Aug TAP
20 Aug British Airways direct
04 Aug British Airways direct
19 Aug British Airways direct
11 Aug British Airways direct
29 Aug British Airways direct

Also check the deals for return flights from Philadelphia to London in August.

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.

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