Spring storms disrupt 910 flights across Canada, with Toronto Pearson worst hit

Disruption overview

Severe spring storms disrupted 910 flights across Canada on 3 April 2026, including 82 cancellations and 828 delays, with Toronto Pearson International Airport hit hardest. Calgary, Vancouver, and Montréal also saw heavy knock-on disruption as aircraft and crews fell out of position across the network. Air Canada, WestJet, Porter Airlines, and PAL Airlines all adjusted schedules, and more delays were possible as the storm moved east. If your flight was affected, cash compensation is unlikely because the cause was weather, but airlines should still provide care, support, and rebooking or refund options.

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Disruption details

Severe spring storms disrupted 910 flights across Canada on 3 April 2026, with Toronto Pearson International Airport seeing the biggest impact. Across the country, airlines recorded 82 cancellations and 828 delays in a single morning operating cycle.

For passengers, this meant missed connections, long waits at service desks, and difficult rebooking decisions before some had even reached the airport. The disruption also threatened to spill into the weekend, as aircraft and crews fell out of position across the network.

Toronto Pearson accounted for at least 26 cancellations and 264 delays after storm cells moved over the Greater Toronto Area and arrivals were temporarily restricted. When Canada’s busiest hub slows down, the knock-on effect spreads quickly.

Aircraft that should have continued west from Toronto couldn’t leave on time, which then reduced inbound capacity at Vancouver International Airport and Calgary International Airport. That pushed delays deeper into Canada’s hub-and-spoke system and added pressure to flights far beyond Ontario.

By 10:00 am local time, the main airports affected were:

• Toronto Pearson International Airport recorded 26 cancellations and 264 delays.

• Calgary International Airport recorded 19 cancellations and 216 delays.

• Montréal–Pierre Elliott Trudeau International Airport recorded 13 cancellations and 139 delays.

• Vancouver International Airport recorded 10 cancellations and 121 delays.

Air Canada, WestJet, Porter Airlines, and PAL Airlines all had to reshuffle schedules. Thousands of passengers were left lining up at gates and customer service counters as domestic and international connection banks began to break down.

If you were connecting onto a long-haul flight, the impact could be even harder to recover from. Some trans-Atlantic and trans-Pacific departures were delayed before feeder flights arrived, leaving travelers to miss once-daily onward services and face longer rebooking waits.

The disruption was driven by severe thunderstorms, torrential rain, and unstable winds moving north from the United States into Canada’s main east-west air corridors. Air traffic restrictions and slower ground handling then made it harder for aircraft to land, depart, and turn around on time.

The picture was still changing at 10:00 am, and the total number of disrupted flights could rise as the storm line moved east. Airlines were urging customers to check their mobile apps before traveling to the airport and to accept self-rebooking options where possible. Even after the weather clears, delays may continue while aircraft and crew rotations are brought back into place.

Because this disruption was caused by weather, cash compensation is unlikely. But that doesn’t mean you’re without support. Under Canada’s passenger rights rules, airlines should still provide care after longer delays, including vouchers and other assistance after a 2-hour delay. If you’re stuck overnight, you may also be entitled to accommodation and transport to it.

If your flight was canceled, you should also be offered rebooking or a refund. Keep hold of any receipts, follow updates from your airline before you travel, and ask for support at the airport if your wait stretches on. If you want to better understand what may apply to your journey, AirHelp’s free flight checker is a simple place to start.

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