San Marcos Regional Airport (HYI)
San Marcos Regional Airport (HYI)
HYI
San Marcos Regional Airport (HYI)
Austin, TX
Latest photos of San Marcos Regional Airport (HYI)
dennisheal
Jack Fleetwood
| FAA Information Effective | 2026-07-09 |
| Airport Identifier | HYI |
| Airport Status | Operational |
| Longitude/Latitude |
97°51'46.8000"
W /
29°53'33.9000"
N -97.863000 / 29.892750 (Estimated) |
| Elevation | 594.70 ft / 181.26 m (Surveyed) |
| Land | 1420 acres |
| From nearest city | 31 nautical miles S of Austin, TX |
| Location | Caldwell County, TX |
| Magnetic Variation | 07E (1985) |
| Airport Use | Open to public |
| Wind indicator | Yes |
| Segmented Circle | Yes |
| Control Tower | ATCT |
| Lighting Schedule | SEE RMK |
| Beacon Color | White-Green (lighted land airport) |
| Landing fee charge | No |
| Sectional chart | SAN ANTONIO |
| Region | ASW - Southwest |
| Responsible ARTCC | ZHU - HOUSTON |
| Tie-in FSS | SJT - SAN ANGELO |
| FSS on Airport | No |
| FSS Toll Free | 1-800-WX-BRIEF |
| NOTAMs Facility | HYI (NOTAM-d service available) |
Runway 08/26
| Dimensions | 6330 x 100 ft (1929 x 30 m) |
| Surface | ASPH (GOOD) |
| Surface treatment | |
| Edge lights | Medium |
| 08 | 26 | |
|---|---|---|
| Alignment | 88° | 268° |
| Physical elevation | 587.80 ft | 580.00 ft |
| Coordinates | 29.891807 / -97.877082 | 29.892459 / -97.857122 |
| Traffic pattern | Left | Left |
| Runway marking | Non-precision instrument , Fair Condition | Non-precision instrument , Fair Condition |
Runway 13/31
| Dimensions | 5601 x 100 ft (1707 x 30 m) |
| Surface | ASPH (GOOD) |
| Surface treatment | |
| Edge lights | Medium |
| 13 | 31 | |
|---|---|---|
| Alignment | 133° | 313° |
| Physical elevation | 593.10 ft | 573.40 ft |
| Coordinates | 29.897030 / -97.870022 | 29.886550 / -97.857070 |
| Traffic pattern | Left | Left |
| Runway marking | Precision instrument , Good Condition | Precision instrument , Good Condition |
| ILS type | ILS | |
| VGSI | 2-light PAPI on left | 2-light PAPI on left |
| Approach light | MALS |
Runway 17/35
| Dimensions | 5214 x 100 ft (1589 x 30 m) |
| Surface | ASPH (GOOD) |
| Surface treatment | |
| Edge lights | Medium |
| 17 | 35 | |
|---|---|---|
| Alignment | 178° | 358° |
| Physical elevation | 594.50 ft | 575.00 ft |
| Coordinates | 29.901688 / -97.857750 | 29.887361 / -97.857139 |
| Traffic pattern | Left | Left |
| Runway marking | Non-precision instrument , Fair Condition | Non-precision instrument , Fair Condition |
| VGSI | 2-light PAPI on left |