Cheapest one-way flights from Seoul to Kathmandu in September from $191

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

One-Way flights

16 Sep SriLankan Airlines
09 Sep SriLankan Airlines
11 Sep China Southern
23 Sep Air China
12 Sep Air China
08 Sep China Southern
10 Sep Air China
21 Sep Air China
22 Sep Thai Airways
08 Sep Korean Air direct

Also check the deals for return 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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