Phnom Penh International Airport is served by 43 airlines, flying from/to 25 destinationsLongest flight from Phnom Penh International Airport is Phnom Penh to 🇰🇷 Seoul (ICN), which takes around 5 hours and 5 minutes. On an airline like Sky Angkor Airlines. More info on this flight route (PNH-ICN).Shortest flight from Phnom Penh International Airport is Phnom Penh to 🇰🇭 Siem Reap (SAI), which takes around 55 minutes. On an airline like Cambodia Angkor Air. More info on this flight route (PNH-SAI).