Flight Time from Bethesda to Gaithersburg
The flight from Bethesda to Gaithersburg covers about 12 mi and takes roughly 31 min nonstop. Flight duration estimate and fare guide.
Bethesda and Gaithersburg are about 12 mi (20 km) apart in a straight line. By road that works out to roughly 17 mi (28 km), a drive of about 42 min. A nonstop flight covers the great-circle distance in approximately 31 min.
| Straight-line distance | 12 mi / 20 km |
| Road distance (est.) | 17 mi / 28 km |
| Driving time (est.) | 42 min |
| Nonstop flight (est.) | 31 min |
| Driving fuel (est., 1-way) | $2 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 39.062, -77.151 |
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
Bethesda to Gaithersburg is about 12 mi (20 km) in a straight line, and roughly 17 mi (28 km) by road.