Flight Time from Ansan-si to Cheonan
The flight from Ansan-si to Cheonan covers about 40 mi and takes roughly 34 min nonstop. Flight duration estimate and fare guide.
Ansan-si and Cheonan are about 40 mi (65 km) apart in a straight line. By road that works out to roughly 52 mi (84 km), a drive of about 1 hr 12 min. A nonstop flight covers the great-circle distance in approximately 34 min.
| Straight-line distance | 40 mi / 65 km |
| Road distance (est.) | 52 mi / 84 km |
| Driving time (est.) | 1 hr 12 min |
| Nonstop flight (est.) | 34 min |
| Driving fuel (est., 1-way) | $7 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 37.065, 126.988 |
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
Ansan-si to Cheonan is about 40 mi (65 km) in a straight line, and roughly 52 mi (84 km) by road.