A powerful blizzard swept through Colorado on Saturday, dumping at least 2 feet (61 cm) of snow in some parts of the state and forcing the cancellation of most of the scheduled flights at the Denver airport, officials said. United Airlines [UALCO.UL] canceled all of its flights to and from Denver International Airport, the airport said in a statement.

All told, more than 800 flights were grounded on Saturday, or more than 65 percent of all scheduled take-offs and landings at the airport, the FlightAware airline tracking website showed. Dozens of other flights were delayed. Denver International is the fourth-largest hub for United Airlines and Southwest Airlines, and the primary hub for Frontier Airlines, according to its website. FULL REPORT