FAA airport delays / ground stops / ground delay programs (GDP) / arrival-departure delay feed / NAS Status / FAA OIS air-traffic disruption monitor / weather-driven program changes. Live US airport disruption events from the FAA National Airspace System Status feed: ground stops, GDPs, AFPs, arrival/departure delays, and closures with reason and timing. Filter by IATA-3 airport and event type. Federal public — no auth, no rate-limit hassle.