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

Return flights

18 Oct - 25 Oct	WestJet
25 Oct - 09 Nov	WestJet
30 Oct - 16 Nov	WestJet
30 Oct - 13 Nov	WestJet
23 Oct - 09 Nov	WestJet
29 Oct - 16 Nov	Spirit Airlines
21 Oct - 09 Nov	WestJet
17 Oct - 28 Oct	Frontier Airlines
28 Oct - 09 Nov	Spirit Airlines
30 Oct - 19 Nov	WestJet
31 Oct - 15 Nov	WestJet
21 Oct - 25 Oct	WestJet
18 Oct - 28 Oct	WestJet
26 Oct - 09 Nov	Frontier Airlines
19 Oct - 26 Oct	WestJet
22 Oct - 29 Oct	WestJet
19 Oct - 23 Oct	WestJet
19 Oct - 24 Oct	WestJet
17 Oct - 26 Oct	Frontier Airlines
16 Oct - 24 Oct	Spirit Airlines

Also check the deals for one-way flights from Atlanta to Seoul 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 Seoul in October from 701€

Return flights