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

Return flights

12 Nov - 16 Nov	SriLankan Airlines
05 Nov - 16 Nov	SriLankan Airlines
12 Nov - 23 Nov	SriLankan Airlines
11 Nov - 06 Dec	China Southern
09 Nov - 07 Dec	China Southern
11 Nov - 07 Dec	China Southern
07 Nov - 07 Dec	China Southern
16 Nov - 29 Nov	Air China
23 Nov - 03 Dec	Air China
21 Nov - 29 Nov	Air China
10 Nov - 22 Nov	Air China
12 Nov - 26 Nov	Air China
10 Nov - 19 Nov	Air China
08 Nov - 06 Dec	China Southern
08 Nov - 03 Dec	China Southern
20 Nov - 30 Nov	Air China
21 Nov - 30 Nov	Air China
04 Nov - 16 Dec	Thai Airways
04 Nov - 20 Dec	Thai Airways
25 Nov - 02 Dec	Thai Airways

Also check the deals for one-way flights from Seoul to Kathmandu 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 Seoul to Kathmandu in November from 328€

Return flights