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

Return flights

24 Oct - 26 Oct	Scandinavian Airlines
31 Oct - 03 Nov	Scandinavian Airlines
29 Oct - 19 Nov	Air Canada
14 Oct - 05 Nov	Air Canada
27 Oct - 05 Nov	Air Canada
28 Oct - 06 Nov	Air Canada
15 Oct - 23 Oct	Air Canada
15 Oct - 22 Oct	Air Canada
28 Oct - 04 Nov	Air Canada
28 Oct - 14 Nov	Air Canada
07 Oct - 15 Oct	Air Canada
01 Oct - 08 Oct	Air Canada
08 Oct - 16 Oct	Air Canada
21 Oct - 28 Oct	Air Canada
01 Oct - 09 Oct	Air Canada
21 Oct - 31 Oct	Air Canada
12 Oct - 22 Oct	Delta
14 Oct - 05 Nov	Finnair	direct
28 Oct - 04 Nov	Air France	direct
29 Oct - 19 Nov	Finnair	direct

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

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 October from $449

Return flights