Cheapest return ICN–KTM flights, September

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

Return flights

23 Sep - 05 Oct Air China
28 Sep - 16 Oct Air China
24 Sep - 05 Oct Air China
23 Sep - 23 Oct Air China
23 Sep - 29 Oct Air China
10 Sep - 25 Sep Air India
24 Sep - 24 Oct Air China
26 Sep - 13 Oct Air China
06 Sep - 15 Sep Air India
01 Sep - 08 Oct Air India
23 Sep - 10 Oct Air China
15 Sep - 30 Sep Air India
17 Sep - 22 Sep Air India
18 Sep - 28 Sep Air India
12 Sep - 25 Sep Air India
12 Sep - 15 Sep Air India
05 Sep - 12 Sep Air China
24 Sep - 04 Oct Air China
08 Sep - 12 Sep Air India
20 Sep - 25 Sep Air India

Also check the deals for one-way flights from Seoul to Kathmandu in September.

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