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

Return flights

25 Nov - 13 Dec	Air China
22 Nov - 25 Nov	Air China
27 Nov - 02 Dec	Air China
27 Nov - 09 Dec	Air China
22 Nov - 11 Dec	Air China
22 Nov - 02 Dec	Air China
22 Nov - 09 Dec	Air China
27 Nov - 11 Dec	Air China
27 Nov - 04 Dec	Air China
13 Nov - 25 Nov	Air China
30 Nov - 09 Dec	Air China
25 Nov - 02 Dec	Air China
27 Nov - 30 Nov	Air China
25 Nov - 30 Nov	Air China
13 Nov - 21 Nov	Air China
20 Nov - 25 Nov	Air China
17 Nov - 25 Nov	Air China
13 Nov - 24 Nov	Air China
27 Nov - 29 Nov	China Southern
24 Nov - 28 Nov	Air China

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 $249

Return flights