Cheapest return flights from Phoenix to London in December from $596

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

Return flights

08 Dec - 13 Dec Scandinavian Airlines
02 Dec - 09 Dec Frontier Airlines
09 Dec - 16 Dec SWISS
10 Dec - 16 Jan British Airways
06 Dec - 14 Jan Air Canada
03 Dec - 08 Dec Frontier Airlines
30 Dec - 09 Jan British Airways
01 Dec - 12 Dec Iberia
05 Dec - 09 Dec Frontier Airlines
06 Dec - 14 Jan British Airways direct
03 Dec - 09 Dec American Airlines
30 Dec - 10 Jan British Airways
08 Dec - 17 Dec Delta
07 Dec - 17 Dec Delta
01 Dec - 08 Dec British Airways
16 Dec - 10 Jan Frontier Airlines
29 Dec - 10 Jan American Airlines
26 Dec - 16 Jan Scandinavian Airlines
23 Dec - 13 Jan Scandinavian Airlines
26 Dec - 13 Jan WestJet

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

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