AirHint found the following cheapest return flights from Seattle (SEA) to Phnom-penh (PNH) in March 2025 (see full year).
03 Mar - 31 Mar | Korean Air | ||
27 Mar - 11 Apr | Asiana Airlines |
Also check the deals for one-way flights from Seattle 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.