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

Return flights

06 Nov - 10 Nov	Thai Lion Air
01 Nov - 15 Nov	Thai Lion Air
04 Nov - 08 Nov	Thai Lion Air
13 Nov - 15 Nov	China Southern
18 Nov - 25 Nov	China Southern
17 Nov - 24 Nov	Thai Airways
05 Nov - 10 Nov	Thai Airways
05 Nov - 09 Nov	Thai Airways
08 Nov - 15 Nov	Thai Airways
08 Nov - 11 Nov	Thai Airways

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

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 November from 399€

Return flights