Ground stop at San Antonio (SAT), Nov 12, 2026

EndedToo many flights at San Antonio briefly halted for 41 minutes

Started: Thu, Nov 12, 3:04 PM CST21:04 UTC
Ended: Thu, Nov 12, 3:45 PM CST21:45 UTC
Duration: 41 min
Cause: airport volume

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What happened

AI-written · may contain mistakes. Written from the advisory text and weather only.

Cause: Air traffic control held departures because too many flights were trying to leave San Antonio at the same time, and the airport could not handle them all at once.

The ground stop began at 21:04 UTC on November 12, 2026, and ended at 21:45 UTC, lasting 41 minutes. Departures were held from one air traffic control center's area, and it was not extended. Clear skies were reported at the time, so the cause was airport volume rather than weather.

Impact by airline

Aircraft seen on the ground at SAT and holding nearby, by airline.

Airline	On ground	Holding
American Airlines AA	1	—

Impact by region

Air traffic control centers whose departures to the airport were held.

Center	Status
Houston Center (ZHU)	Held

Aircraft at the airport

Peak 7 on the ground, 0 holding nearby.

On the ground Holding nearby

Timeline

Every change published while the ground stop was in effect, as seen each minute.

Nov 12, 3:04 PM CST
Ground stop issued at SAT for airport volume, until 3:45 pm CST. Departures held from ZHU.
Nov 12, 3:45 PM CST
Ground stop ended after 41 min.

Advisories

The air traffic control advisories issued for this ground stop, as published.

ATCSCC ADVZY 113 SAT/ZHU 11/12/2026 CDM GROUND STOP

CTL ELEMENT: SAT
ELEMENT TYPE: APT
ADL TIME: 2102Z
GROUND STOP PERIOD: 12/2052Z - 12/2145Z
DEP FACILITIES INCLUDED: (Internal) ZHU
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 338 / 49 / 42
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: VOLUME / COMPACTED DEMAND
COMMENTS:

Original advisory ↗

How it is measured

Status, timeline, cause and held centers: the national airspace status feed, checked every minute, and the air traffic control advisories it links to.
Delays by airline and region: departures and arrivals at SAT 30 or more minutes late, by their estimated delay against the schedule, sampled every 10 minutes while the stop is active and once more after it ends.
Totals and cancellations: arrival and departure boards for SAT, every 30 minutes while active and once more after the end. Delayed means 15 or more minutes late at SAT; cancelled is the airline's cancelled status; codeshares count once. Flights scheduled from the start until an hour after the end are counted.
Held at origin: the same arrivals boards, which carry each flight's scheduled and actual departure from its origin. A flight is held when it is still scheduled, not departed, 15 or more minutes past its scheduled departure at a sample taken during the stop. In scope: its origin is in a held center or listed facility; flights from elsewhere are late for other reasons.
Inbound in the air: the same arrivals boards. At each board taken during the stop, a flight to SAT is in the air when it has departed (en route, or with an actual departure time) and not landed, cancelled or diverted; one still shown in the air over an hour past its arrival estimate, or departed more than 18 hours earlier, is treated as stale and left out.
Diversions: an inbound flight marked diverted during the stop or the wrap-up after it (not one marked before it could have departed), or one still shown in the air 30+ minutes past its arrival estimate that ADS-B (by its ICAO call sign) then found on the ground at another airport, not its origin. The diversion airport is the airport ADS-B found it at, else the updated destination. Cancellations never count. Regional flights flown under another call sign can't be found on ADS-B, so their diversion airport may be unknown.
Aircraft on the ground and holding: ADS-B positions around SAT, every 5 minutes; the airline is read from the call sign. Holding counts airline flights only (passenger, regional and cargo), not private, military or medical flights.
Weather: METARs, SIGMETs and weather alerts.
News: headline links filtered to this airport and these days; we show titles and links only.

Data sources are listed on the credits page.