Cheapest return flights from Kathmandu to Seoul in December from $400

AirHint found the following cheapest return flights from Kathmandu (KTM) to Seoul (ICN) in December 2025 (see full year).

Return flights

23 Dec - 30 Dec Air China
28 Dec - 03 Jan Air China
27 Dec - 03 Jan Air China
23 Dec - 26 Dec Air China
02 Dec - 11 Dec Thai Airways
23 Dec - 30 Dec Korean Air direct
27 Dec - 03 Jan Korean Air direct
18 Dec - 30 Dec China Southern
13 Dec - 27 Dec Korean Air direct

Also check the deals for one-way flights from Kathmandu to Seoul in December.

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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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