February 27, 2024

A line of United Airlines passenger aircraft parked at the gates of Denver International Airport in Denver, Colorado.

Robert Alexander | Getty Images

Power was restored at Denver International Airport after a brief outage on Wednesday afternoon that interrupted flights.

The airport is a major hub for United Airlines and Frontier Airlines, while Southwest Airlines also has a large operation there.

The airport tweeted at around 4 p.m. MT that power had been restored, just over an hour after the outage was reported. The airport announced that delays are still possible.

According to flight tracking website Flightaware.com, about 550 flights, or 27% of scheduled flights to and from the airport, were delayed. Some of the delays were due to poor visibility in the area, the Federal Aviation Administration said.

“All customers affected by the blackout near and at Denver International Airport have been restored,” said Xcel Energy, the local electricity company, in a statement. “At this point, our crews are on site to investigate the cause.”