AirHint found the following cheapest return flights from Seoul (ICN) to Phnom-penh (PNH) in January 2026 (see full year).

Return flights

13 Jan - 21 Jan	Singapore Airlines
28 Jan - 31 Jan	Singapore Airlines
11 Jan - 24 Jan	China Southern
28 Jan - 30 Jan	Singapore Airlines
18 Jan - 23 Jan	Singapore Airlines
13 Jan - 24 Jan	AirAsia X
28 Jan - 05 Feb	AirAsia X
13 Jan - 02 Feb	AirAsia X
13 Jan - 29 Jan	AirAsia X
28 Jan - 29 Jan	AirAsia X
13 Jan - 31 Jan	AirAsia X
10 Jan - 24 Jan	AirAsia X
28 Jan - 11 Feb	AirAsia X
18 Jan - 05 Feb	AirAsia X
18 Jan - 02 Feb	AirAsia X
28 Jan - 13 Feb	AirAsia X
28 Jan - 15 Feb	AirAsia X
28 Jan - 17 Feb	AirAsia X

Also check the deals for one-way flights from Seoul to Phnom-penh 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.

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Cheapest return flights from Seoul to Phnom-penh in January from 323€

Return flights