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

Return flights

27 Jan - 10 Feb	Spirit Airlines
10 Jan - 09 Feb	Frontier Airlines
26 Jan - 09 Feb	Frontier Airlines
05 Jan - 20 Jan	Spirit Airlines
03 Jan - 18 Jan	Turkish Airlines
11 Jan - 21 Jan	Turkish Airlines
23 Jan - 26 Jan	Turkish Airlines
01 Jan - 07 Jan	WestJet
23 Jan - 31 Jan	Air Canada
14 Jan - 21 Jan	Delta	direct
26 Jan - 09 Feb	Delta	direct
27 Jan - 10 Feb	Delta	direct
11 Jan - 21 Jan	Korean Air	direct
10 Jan - 09 Feb	Delta	direct
11 Jan - 18 Jan	Delta	direct
05 Jan - 20 Jan	Delta	direct

Also check the deals for one-way flights from Atlanta to Seoul 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 Seoul in January from 742€

Return flights