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

Return flights

12 Jan - 19 Jan	Air Canada
20 Jan - 09 Feb	Air Canada
13 Jan - 20 Jan	British Airways	direct
19 Jan - 04 Feb	Delta
10 Jan - 23 Jan	Air Canada
06 Jan - 13 Jan	United
28 Jan - 04 Feb	British Airways
09 Jan - 13 Jan	Air Canada
16 Jan - 20 Jan	Air Canada
07 Jan - 31 Jan	British Airways	direct
16 Jan - 20 Jan	British Airways	direct
15 Jan - 21 Jan	Delta
12 Jan - 19 Jan	British Airways	direct
15 Jan - 07 Feb	Scandinavian Airlines
15 Jan - 07 Feb	British Airways	direct

Also check the deals for one-way flights from Atlanta 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 Atlanta to London in January from 425€

Return flights