Flight Time from Hemel Hempstead to Slough
The flight from Hemel Hempstead to Slough covers about 18 mi and takes roughly 32 min nonstop. Flight duration estimate and fare guide.
Hemel Hempstead and Slough are about 18 mi (29 km) apart in a straight line. By road that works out to roughly 25 mi (41 km), a drive of about 35 min. A nonstop flight covers the great-circle distance in approximately 32 min.
| Straight-line distance | 18 mi / 29 km |
| Road distance (est.) | 25 mi / 41 km |
| Driving time (est.) | 35 min |
| Nonstop flight (est.) | 32 min |
| Driving fuel (est., 1-way) | $3 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 51.632, -0.523 |
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
Hemel Hempstead to Slough is about 18 mi (29 km) in a straight line, and roughly 25 mi (41 km) by road.