KSAT San Antonio Intl

13R

CONFIRMED 99%

Runways 13R and 13L — assigned by ATIS (information J)

ADS-B tracking just started here — traffic history is still building.

certainty: 99% evidence: STRONG no tower now Class C

Wind 300° true at 4 kt · VFR · 49 min old · from KSAT (1.0 nm away)

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

13R 51% 8502 ft · 4 kt TAIL, 1 kt x-right

13L 47% 5519 ft · 4 kt TAIL, 1 kt x-right

4 1% 8505 ft · 1 kt TAIL, 4 kt x-left

31L <1% 8502 ft · 4 kt head, 1 kt x-left

31R <1% 5519 ft · 4 kt head, 1 kt x-left

22 <1% 8505 ft · 1 kt head, 4 kt x-right

Active NOTAMs affecting runways

APCH OTS RWY 13R until 10-13 20:00Z

NAV ILS RWY 13R U/S

APCH OTS RWY 31L until 10-14 20:00Z

NAV ILS RWY 31L U/S

APCH OTS RWY 31L until 10-14 20:00Z

NAV ILS RWY 31L GP U/S

APCH OTS RWY 4 until 01-15 20:11Z

IAP SAN ANTONIO INTL, SAN ANTONIO, TX. ILS OR LOC RWY 4, AMDT 23... S-ILS 4 DA 1149/HAT 363 ALL CATS. S-LOC 4 MDA 1280/HAT 494 ALL CATS. VIS CATS C/D RVR 6000. CIRCLING CAT A/B MDA 1400/HAA 591. VDP NA. DISREGARD ZINON FIX MINIMUMS AND ZINON FIX ALTITUDE. TEMPORARY CRANE, 1277FT NW OF RWY 4 (2026-ASW-1780-NRA), TEMPORARY CRANE, 915 MSL, 1389FT NORTH OF RWY 4 (2026-ASW-1271-NRA).

Why — evidence behind this answer

Runway 13R

ATIS ATIS (info J) names 13R for arrivals 39 min ago +3.80
WIND 4 kt TAILWIND, 1 kt right crosswind 49 min ago -0.57
PRIOR runway length 8502 ft +0.03

Runway 13L

ATIS ATIS (info J) names 13L for arrivals 39 min ago +3.80
WIND 4 kt TAILWIND, 1 kt right crosswind 49 min ago -0.57
PRIOR runway length 5519 ft -0.06

Runway 4

ATIS 4 not named for arrivals on current ATIS 39 min ago -1.90
ATIS ATIS names 4 for departures only 39 min ago +1.43
WIND 1 kt TAILWIND, 4 kt left crosswind 49 min ago -0.07
PRIOR runway length 8505 ft +0.03

Runway 31L

ATIS 31L not named for arrivals on current ATIS 39 min ago -1.90
WIND 4 kt headwind, 1 kt left crosswind 49 min ago +0.16
PRIOR runway length 8502 ft +0.03

Runway 31R

ATIS 31R not named for arrivals on current ATIS 39 min ago -1.90
WIND 4 kt headwind, 1 kt left crosswind 49 min ago +0.16
PRIOR runway length 5519 ft -0.06

Runway 22

ATIS 22 not named for arrivals on current ATIS 39 min ago -1.90
PRIOR runway length 8505 ft +0.03
WIND 1 kt headwind, 4 kt right crosswind 49 min ago +0.01

Sources consulted

source	status	age	note
D_ATIS	OK	39 min
METAR	OK	49 min	Nearest station KSAT (1.0 nm away)
ADSB	WARMING_UP	3958 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

Was this right?

KSAT field & runways

San Antonio Intl, San Antonio, Texas. Field elevation 809 ft. Class C airspace. Non-towered (ATCT-TRACON). Magnetic variation 4.0°E on record, 3.5°E today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.079°/year west — about 1° every 13 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against *today's* declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
13L	131.8°	128.3°	matches	5,519 ft	ASPH	left
13R	131.8°	128.3°	matches	8,502 ft	CONC	left	ILS
22	220.6°	217.2°	matches	8,505 ft	CONC	left
31L	311.8°	308.3°	matches	8,502 ft	CONC	left	ILS
31R	311.8°	308.3°	matches	5,519 ft	ASPH	left
4	40.6°	37.2°	matches	8,505 ft	CONC	left	ILS

Generated 08:40:16Z · auto-refreshes · JSON

KSAT ☆ San Antonio Intl