AirHint found the following cheapest return flights from Phoenix (PHX) to London (LHR) in January 2026 (see full year).

Return flights

20 Jan - 27 Jan	United
30 Jan - 06 Feb	United
19 Jan - 26 Jan	jetBlue
10 Jan - 17 Jan	United
11 Jan - 28 Jan	WestJet
11 Jan - 28 Jan	British Airways	direct
20 Jan - 27 Jan	British Airways	direct
19 Jan - 26 Jan	British Airways	direct
30 Jan - 06 Feb	British Airways	direct
10 Jan - 17 Jan	British Airways	direct

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

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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Cheapest return flights from Phoenix to London in January from 445€

Return flights