Cheapest return flights from Atlanta to London in December from $464

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

Return flights

04 Dec - 07 Dec Frontier Airlines
04 Dec - 10 Dec Spirit Airlines
03 Dec - 08 Dec Spirit Airlines
03 Dec - 09 Dec Spirit Airlines
09 Dec - 15 Dec Spirit Airlines
04 Dec - 13 Dec Spirit Airlines
11 Dec - 14 Dec Spirit Airlines
05 Dec - 09 Dec Frontier Airlines
08 Dec - 12 Dec Spirit Airlines
10 Dec - 14 Dec Spirit Airlines
31 Dec - 16 Jan Iberia direct
31 Dec - 16 Jan Air Canada
29 Dec - 24 Jan Air Canada
24 Dec - 09 Jan Spirit Airlines
12 Dec - 07 Jan Spirit Airlines
10 Dec - 10 Jan Air Canada
28 Dec - 17 Jan Air Canada
10 Dec - 10 Jan Air France direct
24 Dec - 07 Jan Spirit Airlines
12 Dec - 11 Jan British Airways

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

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