Flight Time from Cheongju-si to Seongnam-si
The flight from Cheongju-si to Seongnam-si covers about 59 mi and takes roughly 36 min nonstop. Flight duration estimate and fare guide.
Cheongju-si and Seongnam-si are about 59 mi (94 km) apart in a straight line. By road that works out to roughly 76 mi (123 km), a drive of about 1 hr 45 min. A nonstop flight covers the great-circle distance in approximately 36 min.
| Straight-line distance | 59 mi / 94 km |
| Road distance (est.) | 76 mi / 123 km |
| Driving time (est.) | 1 hr 45 min |
| Nonstop flight (est.) | 36 min |
| Driving fuel (est., 1-way) | $10 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 37.038, 127.315 |
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
Cheongju-si to Seongnam-si is about 59 mi (94 km) in a straight line, and roughly 76 mi (123 km) by road.