Just under 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 4:30 p.m. Sunday, 496 flights at DIA had been delayed and another 96 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. So far this weekend, that puts the total number of delayed and canceled flights at just under 1,800. United took first for flight delays this weekend with 364 on Saturday and 139 on Sunday, according to FlightAware data. Southwest followed closely behind with 353 delays on Saturday and 148 on Sunday. Frontier, American Airlines, Alaska Airlines, Delta, Key Lime Air, JetBlue, Southern Express Airways, Air Canada, Lufthansa, Allegiant Air, AeroMexico, Jazz, VivaAerobus, British Airways, Cayman Airways, Copa Airlines, Envoy Air, Icelandair, Volaris and Air France all delayed flights at DIA over the weekend. SkyWest, the airline that operates United Express, canceled the most flights on both days — 41 on Saturday and 36 on Sunday, according to FlightAware. United and Southwest both canceled 42 flights between Saturday and Sunday, overshadowing two canceled by Frontier. This is a developing story and may be updated.  Related Articles Colorado News | WATCH: Snowplow drivers block fleeing burglary suspect on I-70 near Floyd Hill Colorado News | Broncos 31, Chiefs 0: Bo Nix throws 4th TD, finds Marvin Mims Jr. for 7-yard score Colorado News | Colorado weather: Light snow in mountains, fog across Front Range Colorado News | Six big, arty events to get excited about in 2025 Colorado News | Health care for poorest Coloradans is at risk as Medicaid costs dominate budget debate in legislature Get more Colorado news by signing up for our daily Your Morning Dozen email newsletter.