San Marcos Regional (KHYI)
Towered public-use airport serving Austin, Texas, at 595 ft elevation.
Elevation595 ft
ControlTowered
Longest runway6,330 ft
Magnetic variation7° E
On the field: flight training, aircraft rental, charter, avionics repair (as listed in FAA data). Find flight schools in Texas.
Live weather
Forecast (TAF)
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Frequencies
| ATIS | 120.825 |
|---|---|
| CTAF | 126.825 |
| Clearance delivery | 120.125 |
| Clearance delivery | 121.35 |
| Ground | 120.125 |
| Tower | 126.825 |
| Approach/Departure | 119.0 Austin |
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 08/26 | 6,330 × 100 ft | Asphalt | Medium intensity |
| 13/31 | 5,601 × 100 ft | Asphalt | Medium intensity |
| 17/35 | 5,214 × 100 ft | Asphalt | Medium intensity |
Fuel: 100LL, A+. Sectional: San Antonio.
Nearby airports
50RLockhart Municipal10 NM EKBAZNew Braunfels Ntl15 NM SWE70Seguin Airport19 NM SKAUSAustin-Bergstrom International21 NM NE3R9Lakeway Airpark29 NM N1T7Kestrel Airpark30 NM W
Before you fly here
- Read the FAA Chart Supplement entry for HYI: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around KHYI for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 1985. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.