Cheapest return flights from Phoenix to London in December from $615

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

Return flights

08 Dec - 13 Dec Air Canada
03 Dec - 08 Dec Frontier Airlines
01 Dec - 08 Dec Air Canada
01 Dec - 09 Dec Air Canada
09 Dec - 06 Jan Hawaiian Airlines
16 Dec - 10 Jan Frontier Airlines
05 Dec - 13 Dec Frontier Airlines
17 Dec - 10 Jan Frontier Airlines
18 Dec - 10 Jan Frontier Airlines
30 Dec - 09 Jan Frontier Airlines
10 Dec - 17 Dec Air Canada
01 Dec - 12 Dec Sun Country Airlines
27 Dec - 08 Jan Frontier Airlines
01 Dec - 06 Dec Air Canada
29 Dec - 09 Jan Frontier Airlines
12 Dec - 18 Dec Frontier Airlines
12 Dec - 03 Jan Frontier Airlines
29 Dec - 08 Jan Frontier Airlines
11 Dec - 31 Dec Frontier Airlines
22 Dec - 06 Jan Frontier Airlines

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

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