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

Return flights

11 Mar - 29 Mar	SriLankan Airlines
04 Mar - 25 Mar	China Southern
16 Mar - 27 Mar	China Southern
03 Mar - 19 Mar	China Eastern
03 Mar - 10 Mar	China Eastern
02 Mar - 16 Mar	China Southern
25 Mar - 29 Mar	SriLankan Airlines
03 Mar - 18 Mar	China Eastern
04 Mar - 26 Mar	China Southern
25 Mar - 03 Apr	China Eastern
21 Mar - 31 Mar	Thai AirAsia X
02 Mar - 20 Apr	Air China
14 Mar - 26 Apr	Air China
03 Mar - 21 Apr	Air China
30 Mar - 08 Apr	Air China
28 Mar - 18 Apr	Air China
28 Mar - 19 Apr	Air China
28 Mar - 20 Apr	Air China
25 Mar - 21 Apr	Air China
26 Mar - 21 Apr	Air China

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

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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Cheapest return flights from Seoul to Kathmandu in March from 319€

Return flights