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

Return flights

11 Jan - 18 Jan	Thai AirAsia
09 Jan - 16 Jan	Air China
28 Jan - 01 Feb	Air China
13 Jan - 22 Jan	Air China
13 Jan - 21 Jan	Air China
13 Jan - 24 Jan	Air China
13 Jan - 17 Jan	Air China
30 Jan - 06 Feb	Air China
16 Jan - 22 Jan	Air China
14 Jan - 21 Jan	Thai AirAsia
12 Jan - 19 Jan	Thai AirAsia
08 Jan - 15 Jan	China Southern
20 Jan - 10 Feb	Thai Airways
20 Jan - 10 Feb	Korean Air	direct

Also check the deals for one-way flights from Kathmandu 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 Kathmandu to Seoul in January from $381

Return flights