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SAN MARCOS RGNL - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

KHYI
ICAO KHYIIATA HYILocal HYI
SAN MARCOS RGNL
PublicPUB

31 miles S of AUSTIN, TX, US
LiveATC.net: Live Air Traffic - From Their Headsets to You
Status
Operational
Coordinates
29° 53' 34"N 97° 51' 47"W
Elevation
595' MSL
Pattern Alt
1595' MSL
Mag Variation
3°E
Declination
7°E
Fuel
JET A (FSII), 100LL
FSS
SAN ANGELO (SJT)
Sectional
SAN ANTONIO
ARTCC
HOUSTON (ZHU)
Data Effective
2/19/26-3/19/26
KHYI MVFR
10:56 PM CST  
Broken 1,400'
10sm
71°F
67°F
30.02"Hg
150° 7kts
AO2 SLP160 T02170194 $
METAR KHYI 040456Z 15007KT 10SM BKN014 22/19 A3002 RMK AO2 SLP160 T02170194 $

KHYI FBOs

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Weather and Advisory

ATIS 120.825
(512) 353-8005
AWOS-3PT (512) 353-8005

Common

CTAF 126.825
MALS RWY 13; MIRL RWYS 08/26, 13/31 & 17/35 PRESET LOW INTST; TO ACTVT AND INCR INTST - CTAF.

Clearance

Clearance Delivery 120.125
Clearance Delivery 121.35
WHEN HYI TWR CLSD

Ground

SAN MARCOS GROUND 120.125
0700-2100 EFF 01 APR 2021

Tower

SAN MARCOS TOWER 126.825
0700-2100 EFF 01 APR 2021

Arrival

BLEWE STAR 127.225
GABOO STAR 127.225
POTRR STAR 127.225
SZAGI STAR 118.15
SFC-7000 FT
SZAGI STAR 119.0
8,000-12,000 FT

Approach

AUSTIN APPROACH 119.0

Departure

AEROZ DP 119.0
AUSTIN DEPARTURE 119.0
BNDIA DP 119.0
ELOEL DP 119.0
ILEXY DP 119.0
MUCKY DP 119.0
SAYBR DP 119.0

Terminal Area Forecast

KAUS (20nm)
Tue, 3/3 8:57 PM CST
Tue, 3/3 9:00 PM CST - Thu, 3/5 12:00 AM CST
VFR
9:00 PM CST - 11:00 PM CST
Scattered 25,000'
6sm
160° 12kts
MVFR
11:00 PM CST - 6:00 AM CST
Overcast 1,500'
6sm
160° 11kts
MVFR
6:00 AM CST - 12:00 PM CST
Light Drizzle
Overcast 1,500'
6sm
170° 8kts
MVFR
12:00 PM CST - 3:00 PM CST
Overcast 1,800'
6sm
170° 14kts
Gusts 24kts
VFR
3:00 PM CST - 12:00 AM CST
Broken 4,000'
Scattered 2,000'
6sm
170° 14kts
Gusts 24kts
TAF KAUS 040257Z 0403/0506 16012KT P6SM SCT250
   FM040500 16011KT P6SM OVC015
   FM041200 17008KT P6SM -DZ OVC015
   FM041800 17014G24KT P6SM OVC018
   FM042100 17014G24KT P6SM SCT020 BKN040
KHYI
EffectiveExpiresCategoryNOTAM
Domestic
2/23/26
1450Z
6/23/26
1450Z
!HYI 02/009 HYI OBST TOWER LGT (ASR 1214089) 295425.80N0980001.80W (7.3NM W HYI) 1181.8FT (270.0FT AGL) U/S 2602231450-2606231450
2/18/26
1649Z
4/5/26
0500Z
!HYI 02/005 HYI OBST TOWER LGT (ASR 1039468) 295832.80N0980539.00W (13.1NM WNW HYI) 1319.9FT (419.9FT AGL) U/S 2602181649-2604050500
2/15/26
0123Z
5/16/26
0500Z
!HYI 02/004 HYI OBST TOWER LGT (ASR 1227830) 295929.10N0974509.40W (8.3NM NE HYI) 841.9FT (254.9FT AGL) U/S 2602150123-2605160500
1/22/26
1611Z
4/22/26
0500Z
!HYI 01/015 HYI OBST TOWER LGT (ASR 1210862) 295738.70N0980544.10W (12.8NM WNW HYI) 1396.0FT (254.9FT AGL) U/S 2601221611-2604220500
11/25/25
1512Z
!HYI 11/013 HYI NAV ILS RWY 13 OM U/S 2511251512-2605262111EST
FDC
7/22/25
0446Z
!FDC 5/2432 HYI IAP SAN MARCOS RGNL, AUSTIN, TX.
NDB RWY 13, AMDT 5C...
RNAV (GPS) RWY 13, AMDT 2C...
RNAV (GPS) RWY 17, ORIG-B...
RNAV (GPS) RWY 26, ORIG-B...
RNAV (GPS) RWY 31, ORIG-B...
RNAV (GPS) RWY 35, ORIG-B...
RNAV (GPS) RWY 8, ORIG-C...
CIRCLING CAT C MDA 1260/HAA 665.
TEMPORARY CRANE, 910 MSL, 3.12 NM SE OF KHYI AIRPORT (2023-ASW-17979-OE).
2507220446-2603030446EST
6/17/25
1846Z
!FDC 5/5663 HYI IAP SAN MARCOS RGNL, AUSTIN, TX.
RNAV (GPS) RWY 17, ORIG-B...
LNAV MDA 1140/HAT 545 ALL CATS. VIS CAT C/D/E 1 5/8.
CIRCLING CAT A/B MDA 1140/HAA 545.
VDP 1.53 NM TO RW17.
WATER TOWER, 872 MSL, 2.94 NM NORTH OF RWY 17 (2024-ASW-7674-OE).
2506171846-2706171846EST
Yes
0700-2100
FOR AFT HRS SVC 800-229-2379. CALL-IN FEE.
CITY OF SAN MARCOS
630 E. HOPKINS STREET
SAN MARCOS, TX 78666
Phone: 512-216-6039
CASSIDY BERENATO
4400 HWY 21 SUITE 200
SAN MARCOS, TX 78666
Phone: 512-216-6039
SAN ANGELO FSS (SJT)
Toll Free: 1-800-WX-BRIEF
HYI
--
MALS RWY 13; MIRL RWYS 08/26, 13/31 & 17/35 PRESET LOW INTST; TO ACTVT AND INCR INTST - CTAF.
N/A
Yes - Lighted
Yes
No
Hanger, Tie-Down
NOT a Landing Rights Airport
NOT an Airport of Entry
Major
Major
Low Pressure
None
Avionics
Charter Service
Pilot Instruction
Aircraft Rental
Aircraft Sales

Runway 08/26

6330 ft. x 100 ft.
ASPH  
Good 
NONE 
MED 
 
80,000lbs 
-- 
-- 
-- 
  Runway 08 Runway 26
True Heading 88°268°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition FAIR FAIR
Latitude 29° 53' 31"N 29° 53' 33"N
Longitude 97° 52' 37"W 97° 51' 26"W
Elevation 588' 580'
Threshold Crossing Height -- --
Visual Glide Path Angle -- --
Visual Slope Indicator -- --
Approach Lights
Centerline Lights
Runway End Identifier Lights

Runway 13/31

5601 ft. x 100 ft.
ASPH  
Good 
NONE 
MED 
 
60,000lbs 
-- 
-- 
-- 
  Runway 13 Runway 31
True Heading 133°313°
Traffic Pattern Left Left
Markings PIR PIR
Markings Condition GOOD GOOD
Latitude 29° 53' 49"N 29° 53' 12"N
Longitude 97° 52' 12"W 97° 51' 25"W
Elevation 593' 573'
Threshold Crossing Height 57 ft. AGL 60 ft. AGL
Visual Glide Path Angle
Visual Slope Indicator P2L P2L
Approach Lights MALS
Centerline Lights
Runway End Identifier Lights

Runway 17/35

5214 ft. x 100 ft.
ASPH  
Good 
NONE 
MED 
 
20,000lbs 
-- 
-- 
-- 
  Runway 17 Runway 35
True Heading 178°358°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition FAIR FAIR
Latitude 29° 54' 06"N 29° 53' 14"N
Longitude 97° 51' 28"W 97° 51' 26"W
Elevation 594' 575'
Threshold Crossing Height 55 ft. AGL --
Visual Glide Path Angle --
Visual Slope Indicator P2L --
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-3FOR CD CTC AUSTIN APCH AT 512-369-7865.
A110-4APN ALL IREG SFC.
A110-5BIRDS AND WILDLIFE ON AND INVOF ARPT.
A110-6TSNT ACFT PRKG AVBL ON FBO RAMP ONLY. ALL OTR RAMP AREAS RESD FOR BASED ACFT OR RQR PRIOR CDN WITH ARPT MGMT.
A17-H1FOR AFT HRS SVC 800-229-2379. CALL-IN FEE.
A58-086 FT FENCE 130-199 FT DSTC, 360 FT L.
A70-100LL100LL SELF SVC; 100 LL & JET A+ AVBL FULL SERVE.
A81-APTMALS RWY 13; MIRL RWYS 08/26, 13/31 & 17/35 PRESET LOW INTST; TO ACTVT AND INCR INTST - CTAF.
E111ESTABLISHED PRIOR TO 1940.
SAN MARCOS RGNL (ICAO: KHYI, IATA: HYI) is a public airport located in AUSTIN, TX, US.