Denver International Airport experienced significant flight disruptions on September 19, 2026, as thunderstorms in the area led the Federal Aviation Administration to impose a ground delay starting around 4 p.m. MDT. The FAA expected the delay to continue through 8 p.m. MDT to manage the impact on arrivals and departures safely.
Flight Delays and Cancellations by Airline
By late Saturday night, 677 flights had been delayed at Denver International Airport, with 13 flights canceled. United Airlines recorded 266 delayed flights and canceled five. Southwest Airlines faced 177 delayed flights and three cancellations. SkyWest Airlines had 127 flights delayed. Frontier Airlines reported 39 delayed flights. Delta Air
Lines experienced 25 delays and canceled one flight. American Airlines reported 24 delayed flights and two cancellations. Envoy Air canceled two flights. Eight other airlines had delays ranging from one to five flights.
Cause of Disruptions and FAA Actions
The weather disruptions were caused by thunderstorms over the Denver area. The FAA issued the ground delay at Denver International Airport around 4 p.m. MDT to control the flow of arriving flights amid adverse weather conditions. The agency anticipated the ground stop to remain in effect until 8 p.m. MDT as a safety measure to maintain operations in hazardous conditions.
Travelers using Denver International Airport on September
19, 2026, experienced long delays and some cancellations across multiple carriers due to these weather disturbances. The disruption affected both arrivals and departures, involving several major airlines operating through the airport.
