Airport · San Marcos, TX
San Marcos Regional Airport (HYI)
San Marcos Regional Airport (HYI) is a public-use airport in San Marcos, TX. Official FAA data: 6,330 ft longest runway, control tower, Jet A, 595 ft elevation. FAA airport data effective 2026-09-03. Jetora shows private-jet empty legs and repositioning flights departing or arriving here, current weather and nearby alternatives. Car parking, lounges and FBO amenities appear only when supplied by the airport or an FBO that has claimed this page — none yet. Runway figures alone do not establish whether a particular aircraft can operate here; operators decide.
- Longest runway
- 6,330 ft
- Runways
- 3
- Elevation
- 595 ft
- Control tower
- Yes
- Fuel on the field
- 100LL avgas, Jet A with additive
- Aircraft parking
- Hangar space, tie-downs
- Attended
- 0700-2100
- On-field services
- Avionics shop, Charter, Flight instruction, Aircraft rental, Aircraft sales
- Maintenance
- Airframe & engine repair
- On FAA records since
- 1965
- Footprint
- 1,420 acres
- From town
- 31 mi south
- Rotating beacon
- White-green
- Location
- San Marcos, TX, TX
- Codes
- HYI · KHYI