Distance from Boulder City to Saint George
How far is it from Boulder City to Saint George? About 104 mi in a straight line and 135 mi by road. Driving time, flight time, midpoint and route details.
Boulder City and Saint George are about 104 mi (168 km) apart in a straight line. By road that works out to roughly 135 mi (218 km), a drive of about 2 hr 25 min. A nonstop flight covers the great-circle distance in approximately 41 min.
| Straight-line distance | 104 mi / 168 km |
| Road distance (est.) | 135 mi / 218 km |
| Driving time (est.) | 2 hr 25 min |
| Nonstop flight (est.) | 41 min |
| Driving fuel (est., 1-way) | $17 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 36.543, -114.213 |
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
Boulder City to Saint George is about 104 mi (168 km) in a straight line, and roughly 135 mi (218 km) by road.