Cheapest return flights from Phoenix to London in May from $737

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 May 2025 (see full year).

Return flights

02 May - 09 May jetBlue
03 May - 14 May jetBlue
05 May - 09 May jetBlue
01 May - 11 May jetBlue
09 May - 19 May jetBlue
03 May - 11 May Frontier Airlines
03 May - 06 May Frontier Airlines
01 May - 17 May Frontier Airlines
03 May - 14 May Finnair direct
05 May - 16 May Frontier Airlines
16 May - 01 Jun jetBlue
23 May - 07 Jun jetBlue
30 May - 15 Jun Air Canada
30 May - 13 Jun jetBlue
23 May - 01 Jun jetBlue
24 May - 04 Jun United
27 May - 03 Jun United
16 May - 01 Jun Finnair direct
24 May - 04 Jun Finnair direct
30 May - 15 Jun Finnair direct

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

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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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