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AIRPORT

San Marcos Regional AirportKHYI

San Marcos Regional Airport serves San Marcos, Texas, United States. Its ICAO code is KHYI (it has no IATA code). The longest of its 3 runways is 08/26, at 6,330 ft (1,929 m). The field is 597 ft (182 m) above sea level. Local time is America/Chicago, UTC-6, or UTC-5 with daylight saving.

Published by Overfly · Airport data: OurAirports, · Last updated

ICAO
KHYI
IATA
—
LONGEST RUNWAY
6,330 ft
1,929 m · 08/26
ELEVATION
597 ft
182 m
TIME ZONE
UTC-6
America/Chicago
POSITION
29.893°N
97.863°W

Runways

08/266,330 ft · 1,929 mASP
13/315,601 ft · 1,707 mASP
17/355,214 ft · 1,589 mASP

Nearest airports

Questions people ask about San Marcos Regional Airport

How long is the runway at San Marcos Regional Airport?

The longest runway, 08/26, is 6,330 ft (1,929 m), surface ASP. San Marcos Regional Airport has 3 runways in all.

What is the elevation of San Marcos Regional Airport?

597 ft (182 m) above mean sea level.

What time zone is San Marcos Regional Airport in?

America/Chicago: UTC-6, or UTC-5 with daylight saving.

What are the codes for San Marcos Regional Airport?

ICAO KHYI (it has no IATA code). It serves San Marcos, United States.

How far can you fly from San Marcos?
Open the mapper with a 7,300 nm range ring around KHYI, then pick your own aircraft, add a route and check every leg.
Open KHYI in the mapper

For reference and planning interest. Not for operational flight planning. Runway and elevation data from OurAirports; check current charts and NOTAMs before any flight. © 2026 Overfly.Flights