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

Return flights

23 Jan - 30 Jan	Alaska Airlines
17 Jan - 26 Jan	Alaska Airlines
25 Jan - 30 Jan	Alaska Airlines
14 Jan - 26 Jan	Alaska Airlines
16 Jan - 23 Jan	Alaska Airlines
30 Jan - 06 Feb	Alaska Airlines
23 Jan - 06 Feb	Alaska Airlines
22 Jan - 01 Feb	Alaska Airlines
29 Jan - 07 Feb	Alaska Airlines
18 Jan - 26 Jan	Alaska Airlines
16 Jan - 25 Jan	United
18 Jan - 25 Jan	United
14 Jan - 21 Jan	United
16 Jan - 22 Jan	United
27 Jan - 03 Feb	Delta

Also check the deals for one-way flights from Austin 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 Austin to Seoul in January from $746

Return flights