What happened
AI-written · may contain mistakes. Written from the advisory text and weather only.
Cause: Work on the runways and taxiways at Denver required air traffic control to hold departures, while weather that morning was clear with good visibility.
The ground stop began at 00:09 UTC on October 13 and was initially set to run until 7:15 pm Mountain time. Air traffic control gave a medium chance of extension early on, but the stop ended at 01:16 UTC, lasting 1 hour and 7 minutes.
Impact by airline
Flights to and from DEN scheduled during the ground stop and the hour after it. Delayed means 15+ minutes late.
- Flights
- 325
- Delayed
- 222
- Cancelled
- 0
- Arrivals / departures
- 183 / 142
| Airline | Flights | Delayed / cancelled | Avg delay | On ground | Holding |
|---|---|---|---|---|---|
| Southwest Airlines WN | 98 | 92 / 0 | 66 min | 9 | — |
| United Airlines UA | 107 | 59 / 0 | 57 min | 30 | — |
| SkyWest Airlines OO | 72 | 54 / 0 | 73 min | 7 | — |
| Frontier Airlines F9 | 14 | 6 / 0 | 185 min | 6 | — |
| Delta Air Lines DL | 7 | 4 / 0 | 39 min | 1 | — |
| American Airlines AA | 3 | 2 / 0 | 29 min | 2 | — |
| Allegiant Air G4 | 2 | 2 / 0 | 55 min | — | — |
| Sun Country Airlines SY | 2 | 1 / 0 | 15 min | 1 | — |
| Contour Airlines VTE | 2 | 1 / 0 | 18 min | — | — |
| Alaska Airlines AS | 1 | 1 / 0 | 69 min | 1 | — |
| LYM LYM | 7 | 0 / 0 | — | — | — |
| BMJ BMJ | 4 | 0 / 0 | — | — | — |
| Air Canada AC | 2 | 0 / 0 | — | 1 | — |
| British Airways BA | 1 | 0 / 0 | — | 1 | — |
| Icelandair FI | 1 | 0 / 0 | — | 1 | — |
Delayed 15+ min CancelledOn ground / holding: most seen at once.
Held at origin
Flights to DEN 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
- 70
- Average held
- 1 hr 23 min
- Longest
- 5 hr 16 min
23 from airports in the stop's scope; 47 from outside it, late for other reasons. Of the held flights, 49 since departed.
By origin
| Origin | Scope | Held | Avg | Longest |
|---|---|---|---|---|
| LAS Las Vegas | In scope | 3 | 1 hr 41 min | 3 hr 39 min |
| PHX Phoenix | In scope | 3 | 1 hr 26 min | 1 hr 45 min |
| ABQ Albuquerque | In scope | 2 | 56 min | 1 hr 13 min |
| MCI Kansas City | In scope | 2 | 1 hr 7 min | 1 hr 10 min |
| OMA Omaha | In scope | 2 | 48 min | 54 min |
| TUL Tulsa | In scope | 2 | 48 min | 59 min |
| ASE Aspen | In scope | 1 | 1 hr 9 min | 1 hr 9 min |
| BOI Boise | In scope | 1 | 1 hr 23 min | 1 hr 23 min |
| ICT Wichita | In scope | 1 | 44 min | 44 min |
| JAC Jackson | In scope | 1 | 2 hr 47 min | 2 hr 47 min |
| MSP Minneapolis | In scope | 1 | 1 hr 18 min | 1 hr 18 min |
| SAN San Diego | In scope | 1 | 1 hr 21 min | 1 hr 21 min |
| SLC Salt Lake City | In scope | 1 | 44 min | 44 min |
| SNA Santa Ana | In scope | 1 | 1 hr 15 min | 1 hr 15 min |
| STL St. Louis | In scope | 1 | 1 hr 34 min | 1 hr 34 min |
By airline
| Airline | Held | Avg | Longest |
|---|---|---|---|
| SkyWest Airlines OO | 30 | 1 hr 21 min | 2 hr 39 min |
| Southwest Airlines WN | 22 | 1 hr 13 min | 2 hr 59 min |
| Frontier Airlines F9 | 8 | 1 hr 52 min | 5 hr 16 min |
| United Airlines UA | 7 | 1 hr 45 min | 2 hr 47 min |
| BMJ BMJ | 2 | 34 min | 39 min |
| Delta Air Lines DL | 1 | 43 min | 43 min |
Inbound in the air and diversions
Flights to DEN 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
- 146
- Diverted
- 0
In the air to DEN
In the air at the peak (Oct 12, 6:39 PM MDT), by airline
- Southwest Airlines WN50
- United Airlines UA40
- SkyWest Airlines OO31
- Frontier Airlines F97
- American Airlines AA6
- Delta Air Lines DL5
- Air Canada AC2
- Allegiant Air G41
Diversions
No inbound flight has been seen diverting during this stop.
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 |
|---|---|---|---|---|
| Kansas City Center (ZKC) | Held | 11 | 10 | 0 |
| Minneapolis Center (ZMP) | Held | 10 | 9 | 0 |
| Albuquerque Center (ZAB) | Held | 7 | 7 | 0 |
| Los Angeles Center (ZLA) | Held | 8 | 5 | 0 |
| Salt Lake City Center (ZLC) | Held | 5 | 5 | 0 |
| Denver Center (ZDV) | Held | 1 | 1 | 0 |
| Outside the US centers | Not held | 56 | 33 | 0 |
| Houston Center (ZHU) | Not held | 12 | 11 | 0 |
| Washington Center (ZDC) | Not held | 9 | 6 | 0 |
| Fort Worth Center (ZFW) | Not held | 8 | 6 | 0 |
| Atlanta Center (ZTL) | Not held | 7 | 6 | 0 |
| Chicago Center (ZAU) | Not held | 7 | 5 | 0 |
| Seattle Center (ZSE) | Not held | 6 | 5 | 0 |
| Memphis Center (ZME) | Not held | 4 | 4 | 0 |
| Miami Center (ZMA) | Not held | 7 | 3 | 0 |
| Indianapolis Center (ZID) | Not held | 4 | 3 | 0 |
| New York Center (ZNY) | Not held | 4 | 3 | 0 |
| Cleveland Center (ZOB) | Not held | 4 | 3 | 0 |
| Jacksonville Center (ZJX) | Not held | 4 | 2 | 0 |
| Oakland Center (ZOA) | Not held | 3 | 2 | 0 |
| Boston Center (ZBW) | Not held | 5 | 1 | 0 |
| San Juan Center (ZSU) | Not held | 1 | 0 | 0 |
Aircraft at the airport
Peak 47 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 DEN for runway construction, until 7:15 pm MDT.
Chance of extension now medium.
Departures held from ZLA, ZLC, ZDV, ZKC and 2 more.
Ground stop ended after 1 hr 7 min.
Advisories
The air traffic control advisories issued for this ground stop, as published.
ATCSCC ADVZY 005 DEN/ZDV 10/13/2026 CDM GROUND STOP
CTL ELEMENT: DEN ELEMENT TYPE: APT ADL TIME: 0004Z GROUND STOP PERIOD: 12/2354Z - 13/0115Z CUMULATIVE PROGRAM PERIOD: 12/2145Z - 13/0259Z DEP FACILITIES INCLUDED: (1stTier) ZLA ZLC ZDV ZKC ZAB ZMP PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 1988 / 151 / 44 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 3349 / 225 / 74 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: RWY-TAXI / CONSTRUCTION COMMENTS:Original advisory ↗