Cheapest one-way flights from Philadelphia to London in October from $302

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

One-Way flights

21 Oct TAP
22 Oct TAP
27 Oct Frontier Airlines
25 Oct Frontier Airlines
29 Oct Aer Lingus
30 Oct Aer Lingus
21 Oct British Airways direct
22 Oct Iberia direct
27 Oct Aer Lingus direct
29 Oct British Airways direct

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

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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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