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

Return flights

22 Jan - 11 Feb	Air Canada
14 Jan - 28 Jan	Delta
14 Jan - 28 Jan	British Airways	direct
02 Jan - 09 Jan	British Airways	direct
22 Jan - 11 Feb	American Airlines	direct
11 Jan - 25 Jan	Delta
12 Jan - 19 Jan	British Airways	direct
05 Jan - 12 Jan	British Airways	direct
11 Jan - 25 Jan	British Airways	direct
14 Jan - 19 Jan	Delta
22 Jan - 29 Jan	United
22 Jan - 29 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 437€

Return flights