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

One-Way flights

09 Oct	WestJet
23 Oct	WestJet
08 Oct	WestJet
29 Oct	Frontier Airlines
03 Oct	Frontier Airlines
20 Oct	Frontier Airlines
13 Oct	Frontier Airlines
16 Oct	Frontier Airlines
02 Oct	Frontier Airlines
11 Oct	Frontier Airlines

Also check the deals for return 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 one-way flights from Phoenix to London in October from 173€

One-Way flights