Cheapest return flights from Seoul to Kathmandu in May from $367

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

Return flights

09 May - 16 May China Eastern
09 May - 19 May China Eastern
23 May - 02 Jun China Eastern
19 May - 26 May China Eastern
18 May - 25 May China Eastern
23 May - 26 May China Southern
08 May - 12 May China Southern
13 May - 17 May China Southern
15 May - 20 May China Southern
22 May - 25 May China Southern
10 May - 16 May China Southern
09 May - 09 Jun China Southern
16 May - 23 Jun China Southern
15 May - 14 Jun China Southern
09 May - 08 Jun China Southern
26 May - 05 Jun China Southern
30 May - 09 Jun China Southern
28 May - 04 Jun China Southern
30 May - 06 Jun China Southern
05 May - 02 Jun Thai Airways

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

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