Flight Time from Austin to San Antonio
The flight from Austin to San Antonio covers about 74 mi and takes roughly 38 min nonstop. Flight duration estimate and fare guide.
Austin and San Antonio are about 74 mi (118 km) apart in a straight line. By road that works out to roughly 96 mi (154 km), a drive of about 1 hr 43 min. A nonstop flight covers the great-circle distance in approximately 38 min.
| Straight-line distance | 74 mi / 118 km |
| Road distance (est.) | 96 mi / 154 km |
| Driving time (est.) | 1 hr 43 min |
| Nonstop flight (est.) | 38 min |
| Driving fuel (est., 1-way) | $12 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 29.846, -98.120 |
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
Austin to San Antonio is about 74 mi (118 km) in a straight line, and roughly 96 mi (154 km) by road.