AirHint found the following cheapest return flights from Phoenix (PHX) to London (LHR) in September 2026 (see full year).

Return flights

16 Sep - 22 Sep	Scandinavian Airlines
08 Sep - 22 Sep	British Airways	direct
17 Sep - 20 Sep	jetBlue
16 Sep - 24 Sep	jetBlue
16 Sep - 25 Sep	jetBlue
16 Sep - 22 Sep	Iberia	direct
16 Sep - 24 Sep	Iberia	direct
16 Sep - 25 Sep	Iberia	direct
17 Sep - 20 Sep	British Airways	direct

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

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 September from $759

Return flights