Cheapest one-way flights from Seoul to Kathmandu in September from $182

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

One-Way flights

08 Sep Thai AirAsia X
19 Sep SriLankan Airlines
08 Sep Korean Air direct
19 Sep Korean Air direct
24 Sep China Southern

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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