Ground stop at Los Angeles (LAX), Oct 23, 2026

EndedThunderstorms halt departures at LAX for 56 minutes

Started: Fri, Oct 23, 7:33 PM PDT02:33 UTC
Ended: Fri, Oct 23, 8:29 PM PDT03:29 UTC
Duration: 56 min
Cause: thunderstorms

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What happened

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

Cause: Thunderstorms in the area led air traffic control to hold departures at Los Angeles International Airport, with distant lightning and storm clouds to the southeast.

The ground stop began at 02:33 UTC on October 24 and ended at 03:29 UTC, lasting 56 minutes, though it was originally set to run until 8:30 pm Pacific time. Departures were held from one air traffic control center. Delays reached a maximum of 61 minutes, and the chance of an extension was rated medium before the stop lifted.

Impact by airline

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

Airline	On ground	Holding
American Airlines AA	9	—
Delta Air Lines DL	7	—
SkyWest Airlines OO	6	—
United Airlines UA	6	—
Southwest Airlines WN	5	—
JetBlue B6	3	—
Air New Zealand NZ	2	—
Alaska Airlines AS	2	—
Frontier Airlines F9	2	—
ABX Air GB	1	—
Air Canada AC	1	—
Aeroméxico AM	1	—
Air China Cargo CA	1	—
Air China CA	1	—
China Southern CZ	1	—

Impact by region

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

Center	Status
Los Angeles Center (ZLA)	Held

Aircraft at the airport

Peak 44 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.

Oct 23, 7:33 PM PDT
Ground stop issued at LAX for thunderstorms, until 8:30 pm PDT. Departures held from ZLA.
Oct 23, 7:35 PM PDT
Chance of extension now medium.
Oct 23, 8:29 PM PDT
Ground stop ended after 56 min.

Advisories

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

ATCSCC ADVZY 018 LAX/ZLA 10/24/2026 CDM GROUND STOP

CTL ELEMENT: LAX
ELEMENT TYPE: APT
ADL TIME: 0232Z
GROUND STOP PERIOD: 24/0217Z - 24/0330Z
DEP FACILITIES INCLUDED: (Internal) ZLA
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 240 / 61 / 40
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: WEATHER / THUNDERSTORMS
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 LAX 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 LAX, every 30 minutes while active and once more after the end. Delayed means 15 or more minutes late at LAX; 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 LAX 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 LAX, 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.