What happened
AI-written · may contain mistakes. Written from the advisory text and weather only.
Cause: LaGuardia had more departures bunched together than the airport could handle, while calm weather was not the cause.
The ground stop began at 17:46 UTC and was lifted at 18:31 UTC, after 45 minutes, earlier than its planned end of 18:45 UTC. Departures were held from one air traffic control center, and the advisory reported 220 delayed flights, with an average delay of 24 minutes and a maximum of 44 minutes. Air traffic control had rated an extension as medium likely, but the stop was not extended.
Impact by airline
Aircraft seen on the ground at LGA and holding nearby, by airline.
| Airline | On ground | Holding |
|---|---|---|
| Republic Airways YX | 9 | — |
| Delta Air Lines DL | 6 | — |
| Endeavor Air 9E | 6 | — |
| American Airlines AA | 5 | — |
| Southwest Airlines WN | 3 | — |
| Air Canada AC | 2 | — |
| JetBlue B6 | 1 | — |
| United Airlines UA | 1 | — |
Impact by region
Air traffic control centers whose departures to the airport were held.
| Center | Status |
|---|---|
| Washington Center (ZDC) | Held |
Aircraft at the airport
Peak 26 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 LGA for airport volume, until 2:45 pm EDT. Departures held from ZDC.
Ground stop ended after 45 min.
Advisories
The air traffic control advisories issued for this ground stop, as published.
ATCSCC ADVZY 040 LGA/ZNY 10/20/2026 CDM GROUND STOP
CTL ELEMENT: LGA ELEMENT TYPE: APT ADL TIME: 1740Z GROUND STOP PERIOD: 20/1730Z - 20/1845Z DEP FACILITIES INCLUDED: (Manual) ZDC PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 220 / 44 / 24 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: VOLUME / COMPACTED DEMAND COMMENTS:Original advisory ↗