Denver International Airport announced at 6:11 p.m. that they will resume flight operations at 7 p.m., almost six hours after announcing the airport would close indefinitely.
In a tweet, officials said there are few flights scheduled and reminded travelers to check their itineraries.
DEN will reopen and resume flight operations at 7 p.m. tonight - few flights scheduled for the rest of today so check your status
— Denver Int'l Airport (@DENAirport) March 24, 2016
Officials told Denver7 reporter Marc Stewart it's still too early to tell what Thursday's airport operations will look like.
"Weather and visibility are such that it is not safe for aircraft to arrive or depart at this time," airport officials tweeted early this afternoon.
Airport officials added passengers already at the airport should stay in place because Pena Boulevard was impassable at the time.
However, Pena Boulevard reopened to all traffic at around 5:44 p.m.
United Airlines canceled all remaining flights in and out of the airport a little before 2 p.m. The airline extended the travel waiver for customers through Thursday.
Southwest Airlines also canceled all remaining flights, according to Denver7 Reporter Marc Stewart.
— lisa hidalgo (@LisaDenver7) March 23, 2016
All flights into and out of Denver International Airport were being held Wednesday morning because the FAA said visibility was too low, thanks to a spring blizzard moving through Colorado .
The airport hoped to resume flights by 11:30 a.m. Wednesday, but the weather did not clear enough.
As of mid-day, 738 flights - half of the airport's average daily number - had been canceled.
The FAA originally held only incoming flights because of intermittent power outages.
Heath Montgomery with DIA said outages impacted the fuel farm on the north side of the airport. The fuel farm pumps fuel to the airport so that planes can refuel. Power has been restored, and the FAA planned to resume normal operations once the flights at DIA could refuel, take off and make room for incoming planes.
The outage also affected the Glycol (deicing) facility. This facility pumps the deicing fluid to trucks so they can apply it to the aircraft.
A brief power outage early in the morning took out the train service. That lasted only minutes.
Xcel was on hand throughout the morning to handle the intermittent outages.
Up to 12 inches of snow could fall at the airport with wind gusts of up to 46 mph.