How Often Does the FAA Issue a Nationwide Ground Stop?
Airport-level ground stops happen most days somewhere in the US system. Nationwide stops are rare — only a handful since 2001 — because they require a failure in shared infrastructure or a national security event.
Two very different frequencies
| Scope | Frequency | Example |
|---|---|---|
| Single airport | Daily, sometimes several per day | A thunderstorm over a hub |
| Metro area or region | Weekly to monthly | Wind at a multi-airport metro |
| Nationwide | A handful in 25 years | 2023 NOTAM system outage |
The confusion is linguistic. When a passenger says 'there is a ground stop', they usually mean their airport. When a headline says 'nationwide ground stop', it means the system itself has failed. The two phrases describe different orders with different consequences.
Why nationwide stops stay rare
The US airspace system is deliberately redundant. A single radar site, a single airport or a single airline outage is absorbed locally. A nationwide stop requires something shared: the flight-plan and NOTAM systems, national radar coverage, or a security decision at the national level.
How to check whether one is active
- Check the national status band at the top of this page — it reads directly from the FAA feed.
- If the count shows zero ground stops, no nationwide order is active.
- If several airports show the same reason and the same start time, you are looking at a systemic event.
- Cross-check the FAA's own NAS status page and your airline app before changing plans.
Why we keep our own archive
The FAA publishes current status, not a queryable history. Nobody can ask the official feed 'how many nationwide stops happened in 2024'. Our collector stores a normalised snapshot every 15 minutes and writes an event record at each start and end, which is how the history page can answer those questions.
Sources
FAQ
How many nationwide ground stops has the FAA issued?
Only a handful since 2001. The 2001 attacks and the January 2023 NOTAM outage are the best-known examples.
Are ground stops becoming more frequent?
Airport-level stops track weather and traffic; there is no clear long-term increase. Staffing-related orders have become more visible since 2023.
Do ground stops happen at night?
Less often, because demand is lower. Overnight closures are usually planned runway or construction work rather than traffic management.