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

Return flights

19 Nov - 27 Dec	Air India
08 Nov - 30 Dec	Thai Airways
22 Nov - 30 Dec	Thai Airways
12 Nov - 23 Dec	Thai Airways
06 Nov - 27 Dec	Air India
03 Nov - 15 Nov	Air India
01 Nov - 27 Dec	Air India
01 Nov - 09 Nov	Thai Airways
05 Nov - 27 Dec	Air India
01 Nov - 25 Dec	Thai Airways
08 Nov - 30 Dec	Korean Air	direct
01 Nov - 27 Dec	Korean Air	direct

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 629€

Return flights