Flight Time from Boulder to Fort Collins
The flight from Boulder to Fort Collins covers about 41 mi and takes roughly 34 min nonstop. Flight duration estimate and fare guide.
Boulder and Fort Collins are about 41 mi (65 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 34 min.
| Straight-line distance | 41 mi / 65 km |
| Road distance (est.) | 53 mi / 85 km |
| Driving time (est.) | 1 hr 13 min |
| Nonstop flight (est.) | 34 min |
| Driving fuel (est., 1-way) | $7 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 40.300, -105.178 |
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 to Fort Collins is about 41 mi (65 km) in a straight line, and roughly 53 mi (85 km) by road.