AirHint found the following cheapest return flights from Seoul (ICN) to Kathmandu (KTM) in November 2026 (see full year).

Return flights

07 Nov - 15 Nov	SriLankan Airlines
07 Nov - 18 Nov	Air China
02 Nov - 02 Dec	Air China
14 Nov - 28 Nov	Air China
21 Nov - 05 Dec	Air China
21 Nov - 12 Dec	Air India
07 Nov - 14 Nov	Air China
23 Nov - 27 Nov	Air China
07 Nov - 17 Nov	Air China
10 Nov - 14 Nov	Thai Airways
03 Nov - 14 Nov	Thai Airways
10 Nov - 14 Nov	Korean Air	direct
03 Nov - 14 Nov	Korean Air	direct
21 Nov - 05 Dec	Korean Air	direct
21 Nov - 12 Dec	Korean Air	direct

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 $368

Return flights