Cheapest return flights from Seoul to Kathmandu in May from $365

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
19 May - 26 May China Southern
20 May - 27 May China Southern
15 May - 19 May China Southern
08 May - 26 May China Southern
26 May - 05 Jun China Southern
19 May - 30 May China Southern
25 May - 29 May China Southern
03 May - 05 May China Southern
03 May - 06 May China Southern
03 May - 07 May China Southern
09 May - 08 Jun China Southern
25 May - 10 Jun China Southern
26 May - 09 Jun China Southern
23 May - 09 Jun China Southern
25 May - 11 Jun China Southern
22 May - 06 Jun China Southern
30 May - 06 Jun China Southern
04 May - 29 Jun China Southern
02 May - 20 Jun China Southern

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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