On June 21, 2026, San Francisco International Airport encountered significant operational disruptions, with a total of 225 flight delays and 8 cancellations reported. These disruptions affected a range of domestic and international departures on the same day.
Airlines and Routes Impacted
The delays and cancellations involved several carriers including United Airlines, Frontier Airlines, SkyWest Airlines, and Air Canada. Flights connecting San Francisco with destinations such as Chicago, Montreal, New York City, Las Vegas, and Rome were among those impacted. Travelers experienced interruptions that affected their scheduled itineraries and connections at the airport.
