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

Return flights

23 Apr - 30 Apr	WestJet
09 Apr - 18 Apr	Frontier Airlines
29 Apr - 13 May	WestJet
15 Apr - 24 Apr	WestJet
04 Apr - 12 Apr	WestJet
12 Apr - 18 Apr	Frontier Airlines
17 Apr - 20 Apr	WestJet
23 Apr - 15 May	Turkish Airlines
09 Apr - 14 Apr	Turkish Airlines
15 Apr - 13 May	Turkish Airlines
06 Apr - 17 Apr	Turkish Airlines
16 Apr - 07 May	Korean Air	direct
15 Apr - 13 May	Delta	direct
29 Apr - 13 May	Delta	direct
23 Apr - 15 May	Korean Air	direct
06 Apr - 17 Apr	Delta	direct
15 Apr - 24 Apr	Delta	direct

Also check the deals for one-way flights from Atlanta to Seoul in April.

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 April from 771€

Return flights