Cheapest one-way flights from Phoenix to London in September from $251

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

One-Way flights

19 Sep Spirit Airlines
06 Sep Frontier Airlines
18 Sep Sun Country Airlines
13 Sep Frontier Airlines
09 Sep Alaska Airlines
10 Sep Alaska Airlines
24 Sep jetBlue
03 Sep United
09 Sep Iberia direct
03 Sep British Airways direct

Also check the deals for return flights from Phoenix to London in September.

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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