Cheapest return flights from Seoul to Kathmandu in April from $310

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

Return flights

04 Apr - 13 Apr Sichuan Airlines
04 Apr - 12 Apr China Eastern
02 Apr - 12 Apr Air China
14 Apr - 22 Apr China Eastern
11 Apr - 21 Apr China Eastern
07 Apr - 13 Apr Sichuan Airlines
18 Apr - 20 Apr Air China
16 Apr - 20 Apr Air China
27 Apr - 12 May Air China
28 Apr - 12 May Air China
01 Apr - 11 Apr Air China
05 Apr - 19 Apr Air China
17 Apr - 02 May Air China
28 Apr - 23 May Air China
25 Apr - 23 May Air China
28 Apr - 02 May Air China
11 Apr - 02 May Air China
21 Apr - 02 May Air China
17 Apr - 09 May China Southern
17 Apr - 03 May China Southern

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

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