Cheapest return flights from Seoul to Kathmandu in May from $416

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

Return flights

20 May - 07 Jun SriLankan Airlines
16 May - 26 May China Southern
11 May - 17 May Air China
01 May - 15 May Air China
02 May - 16 May Air China
01 May - 09 May Air China
02 May - 12 May Air China
26 May - 30 May Air China
09 May - 06 Jun Air China
08 May - 05 Jun Air China
20 May - 06 Jun Air China
23 May - 09 Jun Air China
19 May - 06 Jun Air China
16 May - 26 May Korean Air direct
26 May - 30 May Korean Air direct
23 May - 09 Jun Korean Air direct
19 May - 06 Jun Korean Air direct
09 May - 06 Jun Korean Air direct
02 May - 16 May Korean Air direct

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

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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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