Cheapest return flights from Phoenix to London in December from 559€

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

Return flights

04 Dec - 13 Jan Spirit Airlines
10 Dec - 13 Jan Frontier Airlines
10 Dec - 15 Dec Air Canada
04 Dec - 11 Jan Spirit Airlines
07 Dec - 13 Jan Frontier Airlines
01 Dec - 09 Dec Frontier Airlines
09 Dec - 13 Jan Alaska Airlines
09 Dec - 06 Jan Hawaiian Airlines
01 Dec - 06 Dec Air Canada
23 Dec - 17 Jan Frontier Airlines
22 Dec - 17 Jan Frontier Airlines
16 Dec - 10 Jan Frontier Airlines
05 Dec - 13 Dec Frontier Airlines
17 Dec - 10 Jan Frontier Airlines
12 Dec - 18 Dec Frontier Airlines
01 Dec - 12 Dec Allegiant Air
11 Dec - 31 Dec Frontier Airlines
07 Dec - 20 Dec Frontier Airlines
10 Dec - 17 Dec Frontier Airlines
20 Dec - 29 Dec Frontier Airlines

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

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