What happened
Cause: Strong, gusty winds and nearby thunderstorms moving east of the airport forced pilots to abort landings and blocked a runway, so air traffic control held departures.
The ground stop began at 21:34 UTC on October 12 and was extended and widened to more air traffic control centers as conditions changed. The stated reason shifted from airspace volume to thunderstorms and then to wind. It ended at 23:14 UTC, after 1 hour 40 minutes.
Impact by airline
- Delayed 30+ min
- 57
- Arrivals / departures
- 29 / 28
| Airline | Delayed | Avg delay | On ground | Holding |
|---|---|---|---|---|
| Southwest Airlines WN | 34 | 79 min | 14 | — |
| Frontier Airlines F9 | 7 | 202 min | 6 | — |
| American Airlines AA | 3 | 97 min | 2 | — |
| Delta Air Lines DL | 3 | 70 min | 1 | — |
| Allegiant Air G4 | 2 | 65 min | 3 | — |
| Horizon Air QX | 2 | 136 min | 1 | — |
| Alaska Airlines AS | 1 | 35 min | 3 | — |
| United Airlines UA | 1 | 90 min | 3 | — |
| Breeze Airways MX | 1 | 31 min | 2 | — |
| Air France AF | 1 | 38 min | 1 | — |
| Sun Country Airlines SY | 1 | 31 min | 1 | — |
| SkyWest Airlines OO | 1 | 32 min | — | — |
Delayed 30+ minOn ground / holding: most seen at once.
Held at origin
- Held at origin
- 0
- Average held
- —
- Longest
- —
No inbound flight has been seen held at its origin during this stop.
Inbound in the air and diversions
- Diverted
- 0
Diversions
No inbound flight has been seen diverting during this stop.
Impact by region
| Center | Status | Delayed |
|---|---|---|
| Los Angeles Center (ZLA) | Held | 11 |
| Oakland Center (ZOA) | Held | 5 |
| Albuquerque Center (ZAB) | Held | 3 |
| Salt Lake City Center (ZLC) | Held | 2 |
| Denver Center (ZDV) | Held | 0 |
| Outside the US centers | Not held | 5 |
| Kansas City Center (ZKC) | Not held | 2 |
| Seattle Center (ZSE) | Not held | 1 |
Aircraft at the airport
On the ground Holding nearby
Timeline
Ground stop issued at LAS for volume, until 3:30 pm PDT.
Chance of extension now medium.
Departures held from ZLA.
Reason changed to airspace volume.
Reason changed to thunderstorms.
Extended until 4:30 pm PDT.
Scope widened: departures now also held from ZAB.
New advisory issued.
Read the advisory ↗Reason changed to thunderstorms.
Scope widened: departures now also held from ZLC, ZDV, ZOA.
New advisory issued.
Read the advisory ↗Reason changed to wind.
Extended until 4:45 pm PDT.
Ground stop ended after 1 hr 40 min.
Advisories
ATCSCC ADVZY 102 LAS/ZLA 10/12/2026 CDM GROUND STOP
CTL ELEMENT: LAS ELEMENT TYPE: APT ADL TIME: 2242Z GROUND STOP PERIOD: 12/2232Z - 12/2345Z DEP FACILITIES INCLUDED: (1stTier) ZLA ZLC ZDV ZOA ZAB PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 1545 / 124 / 34 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 2608 / 139 / 58 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: WEATHER / WIND COMMENTS: THUNDERSTORMS MOVING EAST OF LAS CAUSING STRONG GUSTS, GO AROUNDS, AND REFUSALS ON RWY 19. SCOPE EXPANDED TO 1ST TIER.Original advisory ↗
ATCSCC ADVZY 101 LAS/ZLA 10/12/2026 CDM GROUND STOP
CTL ELEMENT: LAS ELEMENT TYPE: APT ADL TIME: 2223Z GROUND STOP PERIOD: 12/2213Z - 12/2330Z DEP FACILITIES INCLUDED: (Manual) ZLA ZAB PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 477 / 64 / 14 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 1761 / 124 / 53 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: WEATHER / THUNDERSTORMS COMMENTS: ADDED ZAB TO GROUND STOPOriginal advisory ↗
ATCSCC ADVZY 092 LAS/ZLA 10/12/2026 CDM GROUND STOP
CTL ELEMENT: LAS ELEMENT TYPE: APT ADL TIME: 2127Z GROUND STOP PERIOD: 12/2117Z - 12/2230Z DEP FACILITIES INCLUDED: (Internal) ZLA PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 616 / 68 / 38 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: VOLUME / VOLUME COMMENTS: THUNDERSTORMS IMPACTING FINAL AT LAS.Original advisory ↗