Ground stop at Washington Dulles (IAD), Oct 24, 2026

EndedSecurity-related ground stop halts Dulles departures for 38 minutes

Started: Sat, Oct 24, 3:38 PM EDT19:38 UTC
Ended: Sat, Oct 24, 4:16 PM EDT20:16 UTC
Duration: 38 min
Cause: VIP

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What happened

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

Cause: Flights were stopped for a VIP movement and security reasons, not weather. The sky was clear and the wind was light at the time.

The ground stop at Washington Dulles began at 19:38 UTC and ended at 20:16 UTC, lasting 38 minutes. Departures from one air traffic control center were also held starting at 19:40 UTC. The chance of an extension was rated medium, but the stop was not extended and is no longer in effect.

Impact by airline

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

Airline	On ground	Holding
United Airlines UA	7	—
Jazz QK	2	—
Republic Airways YX	2	—
CommutAir C5	2	—
Avianca AV	1	—
GoJet Airlines G7	1	—
KLM KL	1	—
Qatar Airways QR	1	—
Emirates EK	1	—
Contour Airlines VTE	1	—

Impact by region

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

Center	Status
New York Center (ZNY)	Held

Aircraft at the airport

Peak 15 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 24, 3:38 PM EDT
Ground stop issued at IAD for vip, until 4:15 pm EDT.
Oct 24, 3:40 PM EDT
Chance of extension now medium.
Oct 24, 3:40 PM EDT
Departures held from ZNY.
Oct 24, 4:16 PM EDT
Ground stop ended after 38 min.

Advisories

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

ATCSCC ADVZY 060 IAD/ZDC 10/24/2026 CDM GROUND STOP

CTL ELEMENT: IAD
ELEMENT TYPE: APT
ADL TIME: 1936Z
GROUND STOP PERIOD: 24/1926Z - 24/2015Z
DEP FACILITIES INCLUDED: (Manual) ZNY
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 189 / 44 / 38
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: OTHER / SECURITY
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 IAD 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 IAD, every 30 minutes while active and once more after the end. Delayed means 15 or more minutes late at IAD; 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 IAD 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 IAD, 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.