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

Return flights

20 Jun - 27 Jun	Air China
16 Jun - 27 Jun	Air China
16 Jun - 25 Jun	Air India
13 Jun - 22 Jun	Thai Airways
22 Jun - 30 Jun	Thai Airways
20 Jun - 27 Jun	Korean Air	direct
16 Jun - 27 Jun	Korean Air	direct

Also check the deals for one-way flights from Seoul to Kathmandu 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 Seoul to Kathmandu in June from $551

Return flights