The city's airport hummed with activity on Christmas Day as airlines struggled back from a paralyzing blizzard, and mail carriers stayed on the job delivering thousands of storm-delayed packages.
Elsewhere, air traffic was light as people celebrated the holiday, watched football or took in events such as the annual reenactment of George Washington's Revolutionary War crossing of the Delaware River to attack the British at Trenton, N.J.
Denver International Airport officials said that some passengers stranded or delayed by last week's blizzard were still trying to get flights out of the city Monday but that the situation was greatly improved.
"We're pretty much at some semblance of normalcy," said Joe Hodas, a spokesman for Denver-based Frontier Airlines, the airport's second-busiest carrier. "We're running on schedule. No real delays."
The storm dropped as much as 3 1/2 feet of snow, halting mail.
On Christmas Eve and Christmas Day, postal carriers trying to clear out the backlog delivered thousands of packages across Colorado and Wyoming, U.S. Postal Service spokesman Al DeSarro said.
About 500 carriers were delivering mail in the two states Monday, with up to 500 more workers on duty in processing centers, DeSarro said.
In suburban Aurora, Colo., mail carrier Doug Fischer donned a Santa suit to deliver packages on Christmas.
"It's awesome. Everybody's surprised," he said.