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

Return flights

01 Jan - 31 Jan	China Eastern
06 Jan - 14 Jan	Thai VietJet Air
17 Jan - 31 Jan	China Southern
06 Jan - 17 Jan	China Southern
05 Jan - 14 Jan	Air China
12 Jan - 28 Jan	Air China
01 Jan - 06 Jan	Air China
14 Jan - 25 Jan	Air China
11 Jan - 17 Jan	Air China
01 Jan - 22 Jan	Air China
22 Jan - 05 Feb	Air China
24 Jan - 07 Feb	Air India
24 Jan - 07 Feb	Korean Air	direct

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

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.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Cheapest return flights from Seoul to Kathmandu in January from 381€

Return flights