More than 600 flights were canceled or delayed at Denver International Airport on Sunday as light snow continued to fall across the mountains and Front Range and temperatures hovered below freezing across the state. As of 5:45 p.m. Sunday, 533 flights at DIA had been delayed and another 98 were canceled entirely, according to data from flight tracking software FlightAware. That’s fewer than Saturday at the Denver airport when at least 1,120 flights were delayed and another 70 were canceled.