San Francisco International Airport is experiencing significant operational disruptions on June 21, 2026, with a total of 225 flights delayed and 8 flights canceled. Several airlines are affected, including United Airlines, Frontier Airlines, SkyWest, and Air Canada.
Flights impacted by these delays and cancellations are headed to various destinations such as Chicago, Montreal, New York City, Las Vegas, Rome, and Seville. Passengers traveling through the airport today should expect major delays and potential cancellations as they plan their journeys.
