AirHint found the following cheapest return flights from Phoenix (PHX) to London (LGW) in October 2025 (see full year).

Return flights

02 Oct - 06 Oct	Frontier Airlines
01 Oct - 05 Oct	Frontier Airlines
03 Oct - 11 Oct	Frontier Airlines
06 Oct - 14 Oct	Hawaiian Airlines
09 Oct - 24 Oct	Alaska Airlines
03 Oct - 13 Oct	Hawaiian Airlines
06 Oct - 21 Oct	WestJet
11 Oct - 18 Oct	WestJet

Also check the deals for one-way flights from Phoenix to London in October.

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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Cheapest return flights from Phoenix to London in October from 468€

Return flights