There are more delays at airports in Toronto and Montreal this morning — for very different reasons.
Operations at Montreal's Pierre Elliott Trudeau Airport were briefly suspended earlier today due to freezing rain.
There are still dozens of delays and some cancellations at the airport as crews work to reopen all the runways.
Meanwhile, a computer software glitch at Toronto's Pearson International Airport means it's taking longer to check in this morning.
Because the check-in counters are not functioning properly, airline staff are doing it manually, and that is causing slowdowns.
The Greater Toronto Airports Authority says IT providers are trying to fix the problem, but the authority expects check-in will continue to be slow throughout the morning.
Officials say passengers can use web check-in before going to the airport and self-service kiosks at the airport. Passengers should allow extra time for the check-in process.
The Toronto airport authority and the airlines have additional staff on duty.
The latest problem follows the cancellation and delays of hundreds of flights at Pearson and dozens more in Montreal due to bad weather earlier in the week.
Toronto officials triggered a so-called ground stop early Tuesday, preventing North American flights from landing for more than eight hours.
Thousands of passengers ended up sleeping at the airport that night while mountains of luggage awaiting pickup grew.
Officials said Friday the baggage backlog had since shrunk and the rest of the personal cargo should be reunited with owners this weekend.
The GTAA says it is reviewing its response to the deep freeze, which saw 600 flights cancelled Tuesday and another 400 scuttled Wednesday.