What happened
AI-written · may contain mistakes. Written from the advisory text and weather only.
Cause: A equipment problem at the airport led air traffic control to hold departures, so planes could not take off until the issue was resolved.
The ground stop began at 23:36 UTC on October 13 and ended at 01:01 UTC on October 14, lasting 1 hour 25 minutes. Air traffic control later extended and widened it to include departures from all users, and delays grew sharply. The stop has ended, and the weather at the time was clear with light winds.
Impact by airline
Flights to and from IAH scheduled during the ground stop and the hour after it. Delayed means 15+ minutes late.
- Flights
- 177
- Delayed
- 87
- Cancelled
- 0
- Arrivals / departures
- 90 / 87
| Airline | Flights | Delayed / cancelled | Avg delay | On ground | Holding |
|---|---|---|---|---|---|
| United Airlines UA | 91 | 47 / 0 | 76 min | — | — |
| Mesa Airlines YV | 20 | 13 / 0 | 50 min | — | — |
| GoJet Airlines G7 | 7 | 7 / 0 | 54 min | — | — |
| CommutAir C5 | 16 | 6 / 0 | 252 min | — | — |
| SkyWest Airlines OO | 19 | 5 / 0 | 115 min | — | — |
| American Airlines AA | 5 | 3 / 0 | 26 min | — | — |
| Delta Air Lines DL | 3 | 2 / 0 | 57 min | — | — |
| Envoy Air MQ | 2 | 1 / 0 | 57 min | — | — |
| Frontier Airlines F9 | 2 | 1 / 0 | 42 min | — | — |
| Air New Zealand NZ | 1 | 1 / 0 | 26 min | — | — |
| British Airways BA | 1 | 1 / 0 | 21 min | — | — |
| Volaris Y4 | 3 | 0 / 0 | — | — | — |
| Aeroméxico AM | 2 | 0 / 0 | — | — | — |
| JetBlue B6 | 1 | 0 / 0 | — | — | — |
| Air Canada Rouge RV | 1 | 0 / 0 | — | — | — |
Delayed 15+ min CancelledOn ground / holding: most seen at once.
Held at origin
Flights to IAH still on the ground at their origin 15+ minutes past their scheduled departure while the stop was in effect. Held time is minutes past the scheduled departure.
- Held at origin
- 36
- Average held
- 1 hr 21 min
- Longest
- 4 hr 14 min
30 from airports in the stop's scope; 6 from outside it, late for other reasons. Of the held flights, 1 since departed.
By origin
| Origin | Scope | Held | Avg | Longest |
|---|---|---|---|---|
| DEN Denver | In scope | 3 | 56 min | 1 hr 28 min |
| AUS Austin | In scope | 2 | 1 hr 41 min | 2 hr 14 min |
| SAT San Antonio | In scope | 2 | 1 hr 12 min | 1 hr 55 min |
| SFO San Francisco | In scope | 2 | 1 hr 13 min | 1 hr 43 min |
| ATL Atlanta | In scope | 1 | 1 hr 57 min | 1 hr 57 min |
| BOS Boston | In scope | 1 | 3 hr 15 min | 3 hr 15 min |
| CLT Charlotte | In scope | 1 | 18 min | 18 min |
| DCA Arlington | In scope | 1 | 1 hr 23 min | 1 hr 23 min |
| DFW DFW Airport | In scope | 1 | 38 min | 38 min |
| DTW Detroit | In scope | 1 | 43 min | 43 min |
| EWR Newark | In scope | 1 | 1 hr 3 min | 1 hr 3 min |
| FLL Fort Lauderdale | In scope | 1 | 2 hr 23 min | 2 hr 23 min |
| LAS Las Vegas | In scope | 1 | 47 min | 47 min |
| LAX Los Angeles | In scope | 1 | 1 hr 14 min | 1 hr 14 min |
| MCO Orlando | In scope | 1 | 1 hr 8 min | 1 hr 8 min |
By airline
| Airline | Held | Avg | Longest |
|---|---|---|---|
| United Airlines UA | 19 | 1 hr 39 min | 4 hr 14 min |
| Mesa Airlines YV | 5 | 1 hr 7 min | 1 hr 57 min |
| American Airlines AA | 3 | 37 min | 56 min |
| Delta Air Lines DL | 2 | 51 min | 58 min |
| Frontier Airlines F9 | 2 | 53 min | 1 hr 8 min |
| GoJet Airlines G7 | 1 | 1 hr 50 min | 1 hr 50 min |
| PWR PWR | 1 | 1 hr 7 min | 1 hr 7 min |
| SkyWest Airlines OO | 1 | 1 hr 38 min | 1 hr 38 min |
| TWY TWY | 1 | 1 hr 37 min | 1 hr 37 min |
| CommutAir C5 | 1 | 29 min | 29 min |
Inbound in the air and diversions
Flights to IAH that had departed and not yet landed, at each arrivals board sample while the stop was in effect, and inbound flights that landed somewhere else instead.
- Peak in the air
- 42
- Diverted
- 1
In the air to IAH
In the air at the peak (Oct 13, 7:33 PM CDT), by airline
- United Airlines UA22
- American Airlines AA3
- Delta Air Lines DL3
- SkyWest Airlines OO3
- Air Canada AC1
- Mesa Airlines YV1
- British Airways BA1
- Envoy Air MQ1
Diversions
| Flight | From | Diverted to | Seen |
|---|---|---|---|
| UA 579United Airlines | SJD | SAT San Antonio | 8:20 PM |
Impact by region
Arrivals by the air traffic control center they departed from. Held: departures from that center were stopped.
| Center | Status | Arrivals | Delayed | Cancelled |
|---|---|---|---|---|
| Houston Center (ZHU) | Held | 7 | 6 | 0 |
| Atlanta Center (ZTL) | Held | 6 | 4 | 0 |
| Jacksonville Center (ZJX) | Held | 4 | 4 | 0 |
| Washington Center (ZDC) | Held | 6 | 3 | 0 |
| Fort Worth Center (ZFW) | Held | 5 | 3 | 0 |
| Chicago Center (ZAU) | Held | 4 | 3 | 0 |
| Los Angeles Center (ZLA) | Held | 6 | 2 | 0 |
| Miami Center (ZMA) | Held | 4 | 2 | 0 |
| Boston Center (ZBW) | Held | 2 | 2 | 0 |
| New York Center (ZNY) | Held | 4 | 1 | 0 |
| Denver Center (ZDV) | Held | 3 | 1 | 0 |
| Albuquerque Center (ZAB) | Held | 1 | 1 | 0 |
| Kansas City Center (ZKC) | Held | 1 | 1 | 0 |
| Salt Lake City Center (ZLC) | Held | 1 | 1 | 0 |
| Minneapolis Center (ZMP) | Held | 1 | 1 | 0 |
| Seattle Center (ZSE) | Held | 1 | 1 | 0 |
| Indianapolis Center (ZID) | Held | 3 | 0 | 0 |
| Oakland Center (ZOA) | Held | 2 | 0 | 0 |
| Memphis Center (ZME) | Held | 1 | 0 | 0 |
| Cleveland Center (ZOB) | Held | 1 | 0 | 0 |
| Outside the US centers | Not held | 26 | 11 | 0 |
| San Juan Center (ZSU) | Not held | 1 | 0 | 0 |
Aircraft at the airport
Peak 0 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.
Ground stop issued at IAH for ocl:, until 8:00 pm CDT. Departures held from ZLA, ZAU, ZLC, ZTL and 16 more.
Ground stop ended after 1 hr 25 min.
Advisories
The air traffic control advisories issued for this ground stop, as published.
ATCSCC ADVZY 095 IAH/ZHU 10/13/2026 CDM GROUND STOP
CTL ELEMENT: IAH ELEMENT TYPE: APT ADL TIME: 2331Z GROUND STOP PERIOD: 13/2330Z - 14/0100Z DEP FACILITIES INCLUDED: ALL PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 806 / 82 / 18 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 3242 / 212 / 72 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: EQUIPMENT / OCL: EQUIPMENT COMMENTS: SCOPE EXTENDED AND EXPANDED TO INCLUDE ALL USERS.Original advisory ↗