HYI
San Marcos Regional Airport
Official FAA Data Effective 2026-09-03 0901Z
Chart Supplement
AF/D
AF/D
KHYI Airport Diagram
Airport Diagram
VFR Chart of KHYI
Sectional Charts at SkyVector.com
IFR Chart of KHYI
Enroute Charts at SkyVector.com
Location Information for KHYI
Coordinates: N29°53.56' / W97°51.78'
Located 31 miles S of Austin, Texas on 1420 acres of land. View all Airports in Texas.
Surveyed Elevation is 594 feet MSL.
Operations Data
Airport Use:Open to the public
Activation Date:May 1965
Status:Operational
Control Tower:Yes
Seg-Circle:Yes
Beacon:White-Green
(Lighted Land Airport)
Wind Indicator:Yes, Lighted
Lighting Schedule:SEE RMK
A.R.T.C.C.:HOUSTON
F.S.S.:SAN ANGELO
NOTAMs Facility:HYI (NOTAM-D available)
Sectional Chart:SAN ANTONIO
AirspaceAnalysis:NOT ANALYZED
ESTABLISHED PRIOR TO 1940.
Attendance:ALL/ALL/0700-2100
FOR AFT HRS SVC 800-229-2379. CALL-IN FEE.
Airport Communications
ATIS:120.825 (512-353-8005)
AWOS-3PT: Tel. 512-353-8005
SAN MARCOS TOWER:126.825
SAN MARCOS GROUND:120.125
AUSTIN APPROACH:119.0 370.85
AUSTIN DEPARTURE:119.0 370.85
CLEARANCE DELIVERY:120.125 121.35 ;WHEN HYI TWR CLSD
GABOO STAR:127.225 317.65
CTAF:126.825
ELOEL DP:119.0 370.85
BNDIA DP:119.0 370.85
ILEXY DP:119.0 370.85
POTRR STAR:127.225 317.65
AEROZ DP:119.0 370.85
SAYBR DP:119.0 370.85
SZAGI STAR:118.15 ;SFC-7000 FT 119.0 ;8,000-12,000 FT 350.25 ;SFC-7000 FT 370.85 ;8,000-12,000 FT
BLEWE STAR:127.225 317.65
MUCKY DP:119.0 370.85
ATIS at BAZ (14.6 SW):119.325
ASOS at BAZ (14.6 SW):119.325 830-629-7979
D-ATIS at AUS (20.7 NE):124.4
Nearby Navigation Aids
IDNameFreqRadial / Range
VOT DHK RANDOLPH 109.90 039°30.0
VOT RND RANDOLPH 112.30 039°31.4
VOT CWK CENTEX 112.80 204°33.9
VOT SAT SAN ANTONIO 116.80 056°34.6
IDNameFreqBearing / Range
VOT RU GARYS 272 311°6.0
VOT HHH DEVINE 359 231°72.2
VOT CL ROWDY 260 065°87.1
VOT LKX LA PRYOR 223 241°119.2
Runway 08/26
Dimensions:6330 x 100 feet / 1929 x 30 meters
Surface:Asphalt in Good Condition
Weight Limits:S-80
Edge Lighting:Medium Intensity
Runway 08Runway 26
Coordinates:N29°53.51' / W97°52.62'N29°53.55' / W97°51.43'
Elevation: 587.8 580.0
Traffic Pattern: Left Left
Runway Heading: 88° True 268° True
Markings:Non-Precision Instrument in fair condition.Non-Precision Instrument in fair condition.
Obstacles: 25 ft Hangar 201 ft from runway, 488 ft left of center
6 FT FENCE 130-199 FT DSTC, 360 FT L.
29 ft Crops 732 ft from runway, 425 ft right of center
Runway 13/31
Dimensions:5601 x 100 feet / 1707 x 30 meters
Surface:Asphalt in Good Condition
Weight Limits:S-60
Edge Lighting:Medium Intensity
Runway 13Runway 31
Coordinates:N29°53.82' / W97°52.20'N29°53.19' / W97°51.42'
Elevation: 593.1 573.4
Traffic Pattern: Left Left
Runway Heading: 133° True 313° True
Markings:Precision Instrument in good condition.Precision Instrument in good condition.
Glide Slope IndicatorP2L (3.00° Glide Path Angle)P2L (3.00° Glide Path Angle)
Approach Lights:MALS 1,400 Foot Medium-intensity Approach Lighting System.
Runway 17/35
Dimensions:5214 x 100 feet / 1589 x 30 meters
Surface:Asphalt in Good Condition
Weight Limits:S-20
Edge Lighting:Medium Intensity
Runway 17Runway 35
Coordinates:N29°54.10' / W97°51.47'N29°53.24' / W97°51.43'
Elevation: 594.5 575.0
Traffic Pattern: Left Left
Runway Heading: 178° True 358° True
Markings:Non-Precision Instrument in fair condition.Non-Precision Instrument in fair condition.
Glide Slope IndicatorP2L (3.00° Glide Path Angle)
Services Available
Fuel:100LL (blue), Jet A+
Transient Storage:Hangars,Tiedowns
Airframe Repair:MAJOR
Engine Repair:MAJOR
Bottled Oxygen:LOW
Bulk Oxygen:NOT AVAILABLE
Other Services:AVIONICS,CHARTER SERVICE,PILOT INSTRUCTION,AIRCRAFT RENTAL,AIRCRAFT SALES
Ownership Information
Ownership:Publicly owned
Owner:CITY OF SAN MARCOS
630 E. HOPKINS STREET
SAN MARCOS, TX 78666
512-216-6039
Manager:CASSIDY BERENATO
4400 HWY 21, SUITE 200
SAN MARCOS, TX 78666
512-216-6039
Other Remarks
  • FOR CD CTC AUSTIN APCH AT 512-369-7865.
  • APN ALL IREG SFC.
  • BIRDS AND WILDLIFE ON AND INVOF ARPT.
  • TSNT ACFT PRKG AVBL ON FBO RAMP ONLY. ALL OTR RAMP AREAS RESD FOR BASED ACFT OR RQR PRIOR CDN WITH ARPT MGMT.
  • 0LL 100LL SELF SVC; 100 LL & JET A+ AVBL FULL SERVE.
  • MALS RWY 13; MIRL RWYS 08/26, 13/31 & 17/35 PRESET LOW INTST; TO ACTVT AND INCR INTST - CTAF.