Cheapest one-way flights from Phoenix to London in December from 211€

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

One-Way flights

08 Dec Frontier Airlines
09 Dec Frontier Airlines
11 Dec Spirit Airlines
15 Dec Frontier Airlines
30 Dec Frontier Airlines
24 Dec Spirit Airlines
31 Dec Frontier Airlines
16 Dec Hawaiian Airlines
26 Dec WestJet
23 Dec Spirit Airlines

Also check the deals for return flights from Phoenix to London in December.

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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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