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

Return flights

22 Oct - 03 Nov	Frontier Airlines
10 Oct - 14 Oct	Spirit Airlines
01 Oct - 08 Oct	Spirit Airlines
01 Oct - 09 Oct	Frontier Airlines
22 Oct - 30 Oct	Spirit Airlines
14 Oct - 28 Oct	Spirit Airlines
07 Oct - 14 Oct	Frontier Airlines
22 Oct - 29 Oct	Frontier Airlines
02 Oct - 05 Oct	Frontier Airlines
27 Oct - 07 Nov	Frontier Airlines
15 Oct - 21 Oct	Frontier Airlines
16 Oct - 21 Oct	Frontier Airlines
26 Oct - 01 Nov	Spirit Airlines
31 Oct - 02 Nov	Scandinavian Airlines

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 410€

Return flights