AirHint found the following cheapest one-way flights from Kathmandu (KTM) to Seoul (ICN) in June 2025 (see full year).

One-Way flights

19 Jun	China Eastern
18 Jun	China Eastern
25 Jun	China Eastern
21 Jun	China Eastern
30 Jun	Thai AirAsia
29 Jun	Thai AirAsia
23 Jun	Thai AirAsia
24 Jun	Air India
20 Jun	Korean Air	direct
23 Jun	Korean Air	direct

Also check the deals for return 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 one-way flights from Kathmandu to Seoul in June from $249

One-Way flights