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

Return flights

25 Mar - 29 Mar	Korean Air	direct
26 Mar - 28 Mar	Korean Air	direct
10 Mar - 29 Mar	AirAsia X
10 Mar - 28 Mar	AirAsia X
10 Mar - 16 Mar	AirAsia X
26 Mar - 29 Mar	AirAsia X
26 Mar - 13 Apr	AirAsia X
26 Mar - 14 Apr	AirAsia X
26 Mar - 12 Apr	AirAsia X
26 Mar - 11 Apr	AirAsia X

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

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 March from 270€

Return flights