Flights resume at Denver International Airport

Flights are getting back to regular operations at Denver International Airport although there are still be lingering problems from an overnight global Microsoft outage . That includes long lines of people trying to rebook after flights were canceled.

Some flights were grounded in the overnight hours and into the morning. American, Southwest and Frontier flights were operational by 7 a.m. and United and Delta flights were no longer grounded at 8 a.m. At 9 a.m. there were long lines at the United desks in the airport terminal.

Companies that rely on Microsoft 365 apps reported widespread outages early Friday, and that includes airlines across the country and across the world.

FAA and TSA operations at Denver International Airport were functioning normally.

Airport officials said it's important to check on the status of your flight if you are scheduled to depart from Denver on Friday.

"Due to third party technical issues, various airlines are impacted. Please check with your carrier before leaving for DEN," airport officials wrote on social media.

The airport briefly closed its economy parking lots overnight due to what it said on X was "ticket dispensing issues." Those issues were resolved before 6 a.m. The garages remained open.