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

Return flights

06 Mar - 09 Mar	Air China
31 Mar - 21 Apr	Air China
07 Mar - 09 Mar	Air China
24 Mar - 31 Mar	Air China
11 Mar - 22 Mar	SriLankan Airlines
17 Mar - 24 Mar	China Eastern
11 Mar - 15 Mar	China Eastern
15 Mar - 31 Mar	Air China
17 Mar - 31 Mar	Air China
04 Mar - 09 Mar	Air China
17 Mar - 25 Mar	China Southern
19 Mar - 03 Apr	China Southern
24 Mar - 07 Apr	Air China
25 Mar - 08 Apr	Air China
31 Mar - 07 Apr	Air China
31 Mar - 08 Apr	Air China
31 Mar - 05 Apr	Air China
22 Mar - 17 Apr	China Southern
23 Mar - 01 Apr	China Southern
27 Mar - 01 Apr	China Southern

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 273€

Return flights