Several daily flights between Siem Reap and Phnom Penh, about 50 minutes
Now connecting Siem Reap Sihanouk ville.
Phnom Penh - Siem Reap 6-7 hours
Phnom Penh (314 km), via Kompong Thom and Skun take about 5-6 hours by agood road ( minivan or large bus)
Private car also available (5h)