Driving Time from Greeley to Thornton
Driving from Greeley to Thornton is about 53 mi and takes roughly 1 hr 13 min. See the fuel-cost estimate, distance and route tips.
Greeley and Thornton are about 41 mi (66 km) apart in a straight line. By road that works out to roughly 53 mi (85 km), a drive of about 1 hr 13 min. A nonstop flight covers the great-circle distance in approximately 35 min.
| Straight-line distance | 41 mi / 66 km |
| Road distance (est.) | 53 mi / 85 km |
| Driving time (est.) | 1 hr 13 min |
| Nonstop flight (est.) | 35 min |
| Driving fuel (est., 1-way) | $7 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 40.146, -104.841 |
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
Greeley to Thornton is about 41 mi (66 km) in a straight line, and roughly 53 mi (85 km) by road.