Cheapest one-way flights from Philadelphia to London in July from $346

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 July 2025 (see full year).

One-Way flights

01 Jul Frontier Airlines
18 Jul Frontier Airlines
23 Jul American Airlines direct
29 Jul British Airways direct
20 Jul British Airways direct
08 Jul British Airways direct
14 Jul British Airways direct
07 Jul American Airlines direct
18 Jul Iberia direct
04 Jul American Airlines direct

Also check the deals for return 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