Thank the controllers at San Marcos Regional Tower (HYI)
Landed here, took off from here, or just flew through? Leave a quick note for the people who get you home safely, whether it was today or years ago. It goes up on the San Marcos Regional Tower thank-you wall.
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About this facility
- Facility type
- Airport tower
- Identifier
- HYI
- Airport
- KHYI / HYI
- Location
- San Marcos, TX
Look it up
San Marcos Regional Airport
- City
- San Marcos, TX
- Elevation
- 595 ft
- Attended
- Daily 0700-2100
Runways
| Runway | Length | Width | Surface |
|---|---|---|---|
| 08/26 | 6,330 ft | 100 ft | asphalt |
| 13/31 | 5,601 ft | 100 ft | asphalt |
| 17/35 | 5,214 ft | 100 ft | asphalt |
Frequencies
| Clearance delivery | 121.35 |
| UNICOM | 123.05 |
| AWOS | 120.825 |
Fuel
100LL avgasJet A+
FBOs
- Berry Aviation Inc
Services
Airframe repair (major)Engine repair (major)Bottled oxygenTransient hangarsTie-downsAvionicsCharter flightsFlight trainingAircraft rentalAircraft sales
Source: FAA NASR 03 Sep 2026. For reference only, not for navigation. Always check current charts and NOTAMs.
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