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

Return flights

23 Jun - 30 Jun	Singapore Airlines
02 Jun - 29 Jun	Singapore Airlines
03 Jun - 30 Jun	Singapore Airlines
03 Jun - 01 Jul	Singapore Airlines
06 Jun - 13 Jun	Singapore Airlines
19 Jun - 21 Jun	Sichuan Airlines
02 Jun - 30 Jun	Korean Air	direct
01 Jun - 29 Jun	Singapore Airlines
13 Jun - 28 Jul	Korean Air	direct
06 Jun - 13 Jun	Korean Air	direct
23 Jun - 30 Jun	Korean Air	direct

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

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 Kathmandu to Seoul in June from 465€

Return flights