Cheapest return flights from Phoenix to London in September from $632

Best time to book flights for Phoenix (PHX) to London (LHR) flights at AirHint

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

Return flights

01 Sep - 15 Sep Iberia
10 Sep - 17 Sep Finnair direct
01 Sep - 08 Sep British Airways direct
11 Sep - 18 Sep British Airways direct
26 Sep - 03 Oct British Airways direct
01 Sep - 15 Sep American Airlines direct
21 Sep - 28 Sep British Airways
16 Sep - 23 Sep United
01 Sep - 13 Sep jetBlue
06 Sep - 13 Sep United
01 Sep - 13 Sep American Airlines direct

Also check the deals for one-way 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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