"When there's 12-foot drifts on Monument Hill, it's difficult to blame anybody for not being able to keep the runways open," Clark said. "It's unfortunate but it will pass."
Clark said his organization is working on the long-term expansion of the airport, including the building of a new terminal.
Back to normal
On Christmas Day, Frontier Airlines was "pretty much at some semblance of normalcy," said Joe Hodas, a spokesman for the Denver-based airline, the second-busiest carrier at DIA. "We're running on schedule. No real delays."
About 70,000 Frontier passengers were held up by the storm, but he said could not estimate how many canceled or postponed their trips or found other transportation.
In response to complaints from Frontier travelers angry over conflicting information from different Web sites, Hodas said they should check the airport Web site to be sure DIA is open and then rely on the airline Web site to see if their particular flight is operating.
"It all depends on what the issue is," he said.
A spokesman for United Airlines, the airport's dominant carrier, did not immediately respond to an interview request by the Rocky Mountain News.