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

Return flights

19 Nov - 30 Nov	SriLankan Airlines
17 Nov - 27 Nov	Air China
03 Nov - 12 Nov	Air China
09 Nov - 20 Nov	Air China
23 Nov - 03 Dec	Air China
28 Nov - 03 Dec	Air China
30 Nov - 11 Dec	Air China
26 Nov - 10 Dec	Air China
28 Nov - 10 Dec	Air China
28 Nov - 09 Dec	Air China
12 Nov - 18 Nov	Air China
10 Nov - 16 Nov	Air China
13 Nov - 23 Nov	Air China
10 Nov - 19 Nov	Air China
08 Nov - 06 Dec	China Southern
16 Nov - 26 Nov	Air China
02 Nov - 09 Nov	Air China
26 Nov - 06 Dec	Air China
27 Nov - 04 Dec	Air China
30 Nov - 12 Dec	Air India

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 $387

Return flights