Flight traffic at Vancouver International Airport (YVR) is back to normal following staffing shortfalls with NAV CANADA. In a post to social media Wednesday, NAV CANADA announced the flow of traffic had “returned to normal levels.” A media release from the airport Tuesday said that due to unexpected staffing constraints at the country’s air navigation service provider, passengers may experience changes to their flights. YVR told CTV News that there were close to 100 cancellations Tuesday evenly split between arrivals and departures. The airport said the regional routes were most impacted. The airport adds there were approximately 200 flights delayed throughout the day Tuesday, and the average flight delay was four hours. Food service stayed open late to accommodate passengers. Despite the return, YVR advises passengers to check the status of their flights online before leaving for the airport. With files from The Canadian Press.