From flydenver.com -
Denver International Airport (DIA) will reopen and resume flight operations at 7 p.m. this evening.
However, it should be noted that many airlines have cancelled flights for the duration of today. So, passengers should check with their airline to confirm the status of their flight. The airport will resume operations with two open runways (DIA has six) and we expect to be fully operational by tomorrow morning. Passengers should be advised that tomorrow we are expecting heavy passenger traffic. Travelers should arrive at least two hours in advance of their flight, and also confirm their flight status with their airline.
Both inbound and outbound Peña Boulevard have reopened to all traffic, however some exits may still be blocked due to hazardous driving conditions. Drivers are asked to use extreme caution. Airport shuttles are operating between the terminal and the Pikes Peak shuttle lot, as well as to the east and west economy parking lots.
The airport continues to thank passengers for their patience.