Cheapest return flights from Seoul to Kathmandu in September from 290€

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

Return flights

03 Sep - 07 Sep SriLankan Airlines
03 Sep - 14 Sep SriLankan Airlines
10 Sep - 21 Sep SriLankan Airlines
07 Sep - 12 Oct Vietnam Airlines
02 Sep - 04 Sep Air China
02 Sep - 07 Sep Air China
02 Sep - 11 Sep Air China
01 Sep - 29 Sep Air China
01 Sep - 16 Sep Air China
02 Sep - 14 Sep Air China
04 Sep - 09 Sep Air China
28 Sep - 31 Oct China Eastern
29 Sep - 11 Oct Thai AirAsia X
30 Sep - 14 Oct Air China
19 Sep - 24 Oct Air China
08 Sep - 03 Oct Thai Airways
29 Sep - 17 Oct Air China
08 Sep - 13 Oct Thai Airways
21 Sep - 12 Oct Thai Airways
22 Sep - 03 Oct Thai Airways

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

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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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