Flight Time from Cheonan to Cheongju-si
The flight from Cheonan to Cheongju-si covers about 22 mi and takes roughly 32 min nonstop. Flight duration estimate and fare guide.
Cheonan and Cheongju-si are about 22 mi (35 km) apart in a straight line. By road that works out to roughly 31 mi (50 km), a drive of about 43 min. A nonstop flight covers the great-circle distance in approximately 32 min.
| Straight-line distance | 22 mi / 35 km |
| Road distance (est.) | 31 mi / 50 km |
| Driving time (est.) | 43 min |
| Nonstop flight (est.) | 32 min |
| Driving fuel (est., 1-way) | $4 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 36.722, 127.321 |
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
Cheonan to Cheongju-si is about 22 mi (35 km) in a straight line, and roughly 31 mi (50 km) by road.