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

Return flights

26 Jan - 11 Feb	Frontier Airlines
07 Jan - 16 Jan	Spirit Airlines
10 Jan - 23 Jan	Frontier Airlines
11 Jan - 18 Jan	Spirit Airlines
16 Jan - 18 Jan	jetBlue
10 Jan - 31 Jan	Spirit Airlines
05 Jan - 17 Jan	Spirit Airlines
01 Jan - 08 Jan	Spirit Airlines
22 Jan - 14 Feb	Turkish Airlines
15 Jan - 21 Jan	Turkish Airlines
04 Jan - 24 Jan	Spirit Airlines
02 Jan - 11 Jan	Spirit Airlines

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 $494

Return flights