San Marcos Regional
HYI · KHYI · Austin, Texas · Caldwell County · map
San Marcos Regional is a public-use airport owned by the City of San Marcos, 31 miles south of Austin, Texas, 595 feet above sea level. It has 3 runways; the longest, 08/26, is 6,330 feet of asphalt. It has a control tower, fuel (100LL avgas, Jet A with additive) and about 266 general-aviation aircraft based on the field by the FAA's count. The FAA counts about 83,144 takeoffs and landings a year. About 1 passengers boarded flights here in the FAA's fiscal year 2024.
Quick answers answers refresh every morning
What is the airport code for San Marcos Regional?
Its FAA code is HYI, and its ICAO code is KHYI.
Where is San Marcos Regional?
It is 31 miles south of Austin, Texas, 595 feet above sea level.
How long is the longest runway at San Marcos Regional?
The longest of its 3 runways, 08/26, is 6,330 feet long.
Does San Marcos Regional have a control tower?
Yes, it has a control tower.
What fuel can you buy at San Marcos Regional?
The FAA's airport file lists 100LL avgas, Jet A with additive.
Are there flight schools at San Marcos Regional?
One flight school, flying club or college flight programme is based within about 15 miles of it: Lockhart Flying Club. Compare them
Where are the nearest FAA examiners to San Marcos Regional?
15 pilot examiners and 23 aviation medical examiners work within 50 nautical miles. See them by name
Weather and planning now, the forecast, warnings, pilot reports, winds aloft, restrictions
Fetching the weather now, the forecast, the warnings in force, pilot reports and the winds aloft for San Marcos Regional…
Wind map live wind over the area, from Windy.com
Colours show wind speed, the moving lines its direction; drag the time bar for the coming days. Map and forecast by Windy.com.
The airport facts, runways, radio, fuel and services, the FAA's remarks
The airport
- Codes
- FAA HYI · ICAO KHYI
- Kind
- Airport · open to the public · publicly owned
- Owner
- City of San Marcos
- Elevation
- 595 feet above sea level
- Control tower
- A control tower · 7:00 am to 9:00 pm effective 01 apr 2021
- Attended
- every day, 7:00 am to 9:00 pm
- Lights
- runway lights see the remarks below; beacon sunset to sunrise
- Fuel and services
- 100LL avgas, Jet A with additive; the services card below
- On the chart
- San Antonio sectional
- Magnetic variation
- 7E
- In the FAA's files since
- May 1965
Runways 3
For understanding the field, not for navigation.
| Runway | Length × width | Surface | Lights |
|---|---|---|---|
| 08/26 | 6,330 × 100 ft | Asphalt, good | Medium-intensity lights |
| 13/31 | 5,601 × 100 ft | Asphalt, good | Medium-intensity lights |
| 17/35 | 5,214 × 100 ft | Asphalt, good | Medium-intensity lights |
- Runway 08: hangar 25 ft high 201 ft from the end
- Runway 26: crops 29 ft high 732 ft from the end
- Runway 13: ILS, PAPI, two lights on the left, medium-intensity approach lights (MALS)
- Runway 31: PAPI, two lights on the left
- Runway 17: PAPI, two lights on the left
Radio frequencies
| Common traffic advisory (CTAF) · Tower | 126.825 | San Marcos |
| ATIS (recorded airport information) | 120.825 | San Marcos |
| Clearance delivery · Ground | 120.125 | San Marcos |
| Clearance delivery When hyi tower closed | 121.35 | San Marcos |
| Departure procedure (AEROZ) · Approach and departure · Departure procedure (BNDIA) 8,000-12,000 feet | 119.0 | San Marcos |
| Szagi and star SFC-7000 feet | 118.15 | San Marcos |
| Blewe and star · Gaboo and star · Potrr and star | 127.225 | San Marcos |
Automated weather (AWOS-3PT), by phone 512-353-8005.
Fuel and services as reported to the FAA
- Fuel
- 100LL avgas, Jet A with additive
- Repairs
- airframe and engine: major repairs
- Parking
- hangars, tie-downs
- Oxygen
- bottled oxygen (low-pressure)
- Also here
- avionics, charter flights, flight instruction, aircraft rental, aircraft sales
Other fields with jet fuel nearby: New Braunfels Ntl Airport (15 nm southwest), Austin-Bergstrom International (21 nm northeast), Austin Executive (34 nm northeast).
The FAA's file records what is sold and done at the field, as the airport manager reports it, not who sells it or the price; fuel sellers (FBOs) are not named in any public file. Airports selling jet fuel in Texas · avgas.
The FAA's remarks as written in the airport file, spelled out
- Established prior to 1940.
- Mals runway 13; medium-intensity runway lights runways 08/26, 13/31 and 17/35 preset low intst; to activate and incr intst - the common traffic frequency.
- 100LL self service; 100 LL and jet a+ available full serve.
- 6 feet fence 130-199 feet dstc, 360 feet L.
- Apn all ireg surface.
- Birds and wildlife on and in the vicinity of airport.
- Transient aircraft parking available on the FBO (fixed-base operator) ramp only. All otr ramp areas resd for based aircraft or rqr prior cdn with airport mgmt.
Flights and activity in the air now, the airlines, based aircraft, takeoffs and landings
Activity now checking the volunteer receiver network…
Within ten miles
- Looking…
Arrivals and departures, last hour
- Looking…
From the volunteer receiver network, a few minutes behind at most; aircraft whose owners asked the FAA not to be displayed are left out; no person is named. Open the live map here.
Based aircraft as counted for the FAA, fiscal year 2024
Based aircraft, as a table
| aircraft | |
|---|---|
| single-engine | 183 |
| multi-engine | 65 |
| jets | 13 |
| helicopters | 5 |
The FAA's count is the general-aviation aircraft kept on the field (singles, twins, business jets, helicopters) from its Terminal Area Forecast, the latest year with an actual count; airline fleets are never counted as based anywhere, so a big airline airport shows a small number. The register section below shows how many aircraft are registered to owners in town, a different measure again.
Takeoffs and landings a year about 83,144, the FAA's fiscal year 2024 (October 2023 to September 2024)
Takeoffs and landings, as a table
| a year | |
|---|---|
| airline | 2 |
| air taxi and commuter | 1,577 |
| general aviation, travelling | 39,503 |
| general aviation, local | 41,311 |
| military | 751 |
Local flights stay in the traffic pattern or nearby, often practice; travelling flights arrive from or leave for somewhere else. Counts at airports without a tower are the FAA's estimates. How this compares nationally: Airports by the numbers.
Who flies and works here aircraft registered in town, the companies, the examiners nearby
Aircraft registered in Austin from the FAA register
788 aircraft are registered to owners in Austin, Texas: 484 piston singles, 85 business jets, 48 drones, 47 turboprops, 44 helicopters. Not every one of them is based at this airport; the based-aircraft count above is the FAA's figure for this airport alone.
Companies and organisations in town with two or more aircraft:
Individuals are counted, not named (the site's policy at this time). All aircraft registered in Texas.
Who works here from the FAA's certificate lists and the register
Flight schools, flying clubs and college flight programmes based within about 15 miles:
- Lockhart Flying Club 4 aircraft · Lockhart, 12 miles away Lockhart Flying Club is a flying club founded in 2018 based in Lockhart, Texas.
Charter operators and airlines based in Austin:
- Paradigm Jet Management, Inc. 20 aircraft on the certificate Paradigm Jet Management provides worldwide executive aircraft charter, aircraft management services, aircraft maintenance, hangar storage, and acquisition consulting.
- Owyhee Air Research, LLC. 4 aircraft on the certificate Owyhee Air Research provides aerial imaging and mapping services for wildlife surveys, wildfire reconnaissance, photogrammetry, and natural resource data acquisition.
- Travis County EMS 3 aircraft on the certificate
- Bluvista Aviation LLC 1 aircraft on the certificate
- Saturn Aviation, LLC 1 aircraft on the certificate Saturn Aviation is a Part 135 charter operator and aircraft management company based at Austin-Bergstrom International Airport (ABIA) in Austin, Texas, since 2008.
- Air & Opportunity Aviation, LLC 1 aircraft on the certificate
- Air Exec, Inc. 1 aircraft on the certificate
Repair stations in Austin:
- Bae Systems Information and Electronic Systems Int
- Cargo Systems INC Cargo Systems, Inc.
- Nav-Com Services, LLC
Companies in the same town as this airport, and schools within about 15 miles of it (each placed at the main public airport of its town, or at the town's centre); not every one of them works from this field. All operators · all repair stations · all flight schools · all FBOs.
Examiners and inspectors nearby designated by the FAA · within 50 nautical miles
15 pilot examiners (the FAA's designated pilot examiners, who give the practical tests for pilot certificates) are based within 50 nautical miles: 14 for private pilot, 13 for commercial and instrument, 8 for airline transport pilot, 7 for flight instructor, 1 for sport pilot, 2 for type ratings; 11 for airplanes, 8 for multi-engine airplanes, 1 for seaplanes, 4 for helicopters, 1 for gliders. Also nearby: 2 sport aviation examiners, 23 aviation medical examiners, 2 mechanic examiners, 4 airworthiness representatives (maintenance), 7 airworthiness representatives (manufacturing), 14 engineering representatives, 1 parachute rigger examiner, 5 training center examiners, 2 administrative pilot examiners.
- Brian David Childs private pilot, commercial and instrument, flight instructor, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes · Coast Flight · San Marcos, TX (5 nm) · (956) 247-9464 · [email protected]
- Roger Gordon Sharp private pilot, commercial and instrument, airline transport pilot, flight instructor, instrument instructor, sport pilot, commercial pilot, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes, multi-engine airplanes, seaplanes, helicopters · Hangar Lima · San Marcos, TX (5 nm) · (210) 860-4822 · [email protected]
- Steven McCaffrey private pilot, commercial and instrument, airline transport pilot, flight instructor, commercial pilot, instructor renewals, military competency, ground instructor, foreign pilot certificates; helicopters · New Braunfels, TX (15 nm) · (830) 480-9368 · [email protected]
- Zachary Ryan Armstrong private pilot, commercial and instrument, airline transport pilot, flight instructor, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes, multi-engine airplanes · New Braunfels, TX (15 nm) · (936) 577-1117 · [email protected]
- James Briggs private pilot, commercial and instrument; airplanes, multi-engine airplanes · Atlantic FBO AUS · Austin, TX (21 nm) · (303) 870-7852 · [email protected]
- Matthew Allen Quillen private pilot, commercial and instrument, instructor renewals, military competency, ground instructor, foreign pilot certificates; airplanes · Henriksen Jet Center · Pflugerville, TX (36 nm) · (512) 750-6287 · [email protected]
- Tristan T Walling private pilot, commercial and instrument, airline transport pilot, instrument instructor, instructor renewals, military competency, ground instructor; airplanes, multi-engine airplanes · Aerotex Aviation · Pflugerville, TX (36 nm) · (317) 418-2194 · [email protected]
- Gregory Kling Squires private pilot, commercial and instrument, instrument instructor, commercial pilot, instructor renewals, military competency, ground instructor; airplanes, gliders · Breakaway Airport (40XS) · Cedar Park, TX (37 nm) · (914) 525-9431 · [email protected]
All 75 nearby, by kind, with contact details
What each kind does
- DPE: Designated Pilot Examiner: gives the practical tests (checkrides) for pilot certificates and ratings.
- SAE: Sport Aviation Examiner: gives the tests for sport pilot certificates and light-sport aircraft.
- AME: Aviation Medical Examiner: a doctor who issues the medical certificates pilots must hold.
- DME: Designated Mechanic Examiner: tests candidates for the mechanic certificate (airframe and powerplant).
- DAR-T: Designated Airworthiness Representative, maintenance: issues airworthiness certificates and approvals for aircraft in service.
- DAR-F: Designated Airworthiness Representative, manufacturing: issues airworthiness certificates for newly built aircraft and parts.
- DER-T: Designated Engineering Representative: approves engineering data for repairs and alterations on the FAA's behalf.
- DPRE: Designated Parachute Rigger Examiner: tests candidates for the parachute rigger certificate.
- DCTO-E: Designee at a certificated training organisation.
- Admin-PE: Administrative Pilot Examiner: handles certificate paperwork rather than flight tests.
Designees are listed with the name and contact details the FAA publishes for them on its designee locator (read October 10, 2026): the FAA lists them so that pilots, mechanics and companies can find them. Private individuals are not named, the site's policy at this time. A designee who would rather not appear here can ask us through the contact address on the About page. Each designee is placed at the main public airport of the town the FAA lists (or the nearest one to its zip code), so "nearby" means the town, not an exact address. All examiners by state.
Safety record the NTSB's cases at or near this airport
Accidents and incidents at or near this airport NTSB records · 16 since 1982, 3 fatal
Cases the NTSB recorded with this as the nearest airport, newest first. Each opens the full report in plain English. The country as a whole: Where accidents happen.
Nearby within 30 nautical miles
Connections how this airport links to the rest of the register
- Aircraft registered in Austin 788 aircraft · 484 piston singles, 85 business jets, 48 drones
- Texas Department of Public Safety 23 aircraft in town
- Skyways Air Transportation INC 16 aircraft in town
- Above and Beyond Aviation LLC 14 aircraft in town
- Seekops INC 11 aircraft in town
- Paradigm Jet Management, Inc. 20 aircraft on the certificate · charter operator
- Owyhee Air Research, LLC. 4 aircraft on the certificate · charter operator
- Travis County EMS 3 aircraft on the certificate · charter operator
- Bluvista Aviation LLC 1 aircraft on the certificate · charter operator
- Lockhart Flying Club 4 aircraft · flying club
- Bae Systems Information and Electronic Systems Int · repair station
- Cargo Systems INC · repair station
- Nav-Com Services, LLC · repair station
- NTSB accidents and incidents at or near this airport 16 since 1982 · 3 fatal
- Accidents and incidents in Texas 6,235 since 1982 · 1,056 in the last ten years
- Nearby landing places within 30 nautical miles 8 airports, heliports and seaplane bases
- Public-use airports in Texas 393 landing places
- Texas 29,943 aircraft registered
The whole map of how records connect · these connections as data: /graph/airport/HYI.json.
Facts from the FAA's airport file effective October 29, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 29, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.