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

Return flights

07 Mar - 17 Mar	China Eastern
17 Mar - 31 Mar	China Eastern
07 Mar - 18 Mar	Sichuan Airlines
17 Mar - 30 Mar	Sichuan Airlines
13 Mar - 16 Mar	Air China
07 Mar - 30 Mar	Air China
22 Mar - 25 Mar	Air China
22 Mar - 27 Mar	Air China
28 Mar - 30 Mar	Air China
07 Mar - 16 Mar	Air China
28 Mar - 12 Apr	Air China
31 Mar - 12 Apr	Air China
29 Mar - 12 Apr	Air China
30 Mar - 12 Apr	Air China
30 Mar - 13 Apr	Air China
21 Mar - 04 Apr	China Eastern
24 Mar - 07 Apr	China Eastern
31 Mar - 14 Apr	China Southern
23 Mar - 11 Apr	China Southern
30 Mar - 10 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 258€

Return flights