AirHint found the following cheapest return flights from Kathmandu (KTM) to Seoul (ICN) in December 2025 (see full year).
Return flights
| 06 Dec - 13 Dec | Thai Lion Air | ||
| 09 Dec - 03 Jan | Air China | ||
| 12 Dec - 06 Jan | Air China | ||
| 25 Dec - 08 Jan | Air China | ||
| 09 Dec - 03 Jan | Korean Air | direct | |
| 06 Dec - 13 Dec | Korean Air | direct |
Also check the deals for one-way flights from Kathmandu to Seoul in December.
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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