Cheapest return flights from Phoenix to London in December from 538€

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

Return flights

11 Dec - 18 Dec United
01 Dec - 08 Dec United
02 Dec - 13 Jan United
01 Dec - 08 Dec British Airways direct
31 Dec - 07 Jan United
02 Dec - 13 Jan British Airways direct
15 Dec - 21 Dec United
11 Dec - 18 Dec British Airways direct
12 Dec - 30 Dec Delta
31 Dec - 07 Jan British Airways direct
16 Dec - 23 Dec Delta
15 Dec - 21 Dec British Airways direct
22 Dec - 01 Jan United
18 Dec - 24 Dec British Airways
21 Dec - 28 Dec British Airways
15 Dec - 05 Jan Delta
21 Dec - 05 Jan Delta
15 Dec - 05 Jan British Airways direct

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

Skyscanner

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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