Cheapest return flights from Seoul to Kathmandu in May from $372

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

Return flights

20 May - 31 May SriLankan Airlines
26 May - 30 May China Southern
19 May - 30 May China Southern
01 May - 09 May Air China
01 May - 05 May Air China
03 May - 16 May Air India
26 May - 30 May Korean Air direct
19 May - 30 May Korean Air direct

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

Skyscanner

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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