Driving Time from Phnom Penh to Phra Nakhon Si Ayutthaya
Driving from Phnom Penh to Phra Nakhon Si Ayutthaya is about 427 mi and takes roughly 7 hr 14 min. See the fuel-cost estimate, distance and route tips.
Phnom Penh and Phra Nakhon Si Ayutthaya are about 350 mi (563 km) apart in a straight line. By road that works out to roughly 427 mi (687 km), a drive of about 7 hr 14 min. A nonstop flight covers the great-circle distance in approximately 1 hr 9 min.
| Straight-line distance | 350 mi / 563 km |
| Road distance (est.) | 427 mi / 687 km |
| Driving time (est.) | 7 hr 14 min |
| Nonstop flight (est.) | 1 hr 9 min |
| Driving fuel (est., 1-way) | $53 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 12.966, 102.759 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Phnom Penh to Phra Nakhon Si Ayutthaya is about 350 mi (563 km) in a straight line, and roughly 427 mi (687 km) by road.