Cheapest return flights from Phoenix to London in April from $603

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

Return flights

13 Apr - 28 Apr Frontier Airlines
13 Apr - 29 Apr Frontier Airlines
07 Apr - 14 Apr Frontier Airlines
21 Apr - 27 May Frontier Airlines
01 Apr - 22 Apr Frontier Airlines
16 Apr - 29 Apr Frontier Airlines
22 Apr - 27 May Alaska Airlines
13 Apr - 27 Apr Frontier Airlines
16 Apr - 30 Apr Frontier Airlines
09 Apr - 16 Apr Sun Country Airlines
03 Apr - 12 Apr Frontier Airlines
16 Apr - 20 Apr Frontier Airlines
29 Apr - 04 May Alaska Airlines
19 Apr - 05 May Frontier Airlines

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

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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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