BLOOMINGTON, Minn. - Operations have resumed at the Minneapolis-St. Paul Airport after an April blizzard grounded all flights Saturday night.

No flights arrived or departed Saturday beginning at 2 p.m., as a late-season storm dumped 12.9 inches at the airport. Later in the evening Saturday, MSP reported that crews were able to clear one of the four runways to allow the last remaining flight to depart.

MSP said on Twitter in response to some followers, "Our operations are certainly delayed due to yesterday’s cancellations, but we have two runways open this morning."

They said one runway is for arrivals and one is for departures.

Dozens of flights have been canceled or delayed at the Minneapolis-St. Paul International Airport due to the unseasonable spring storm. (Photo courtesy: David Witt)

Operations have resumed, but travelers will want to check with their airlines about their specific flight's status, according to MSP.

MSP spokesperson Patrick Hogan tells KARE 11 they had 467 cancellations Saturday and more than 200 Sunday.

RELATED: Current local weather forecast

Travel wasn't just treacherous in the sky. The Minnesota State Patrol was reporting hundreds of accidents across the state over the weekend.