Flights Cancelled Throughout Canada As Calgary, Montreal, Toronto, Quebec City, Vancouver, Winnipeg, And More Cancel 179 And Delay 403 Flights, Disrupting Air Canada, WestJet, Porter, Air Transat, And Others

Written By: Ryan Rashid

Ryan Rashid

Ryan Rashid writes news that people actually find and finish reading. Ryan has a knack for turning jargon-heavy updates into engaging journalism anyone can follow in under a minute. An English graduate from Calcutta University, he pairs sharp writing instincts with a solid grip on what makes a story travel online. He keeps a close eye on what's trending and what's about to, so stories land while they still matter. Underneath the fast pace, there's always solid research and clean editing holding it together.

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July 3, 2026 12:19 AM

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Flight cancellations further intensified throughout Canada, as 179 cancellations and 403 delays impacted Toronto Pearson, Montreal-Trudeau, Toronto City Centre, Ottawa Macdonald-Cartier, Vancouver, Calgary, Edmonton, Quebec City, Winnipeg, and Regina. Air Canada, Jazz (ACA) and Porter Airlines experienced the highest number of disruptions, while WestJet, Air Canada Rouge, Air Transat, United, American Airlines, Lufthansa, and several regional carriers also faced delays or cancellations. The massive disruptions in Canada today are being driven by systemic operational strain, a partial runway closure at Toronto Pearson International Airport (YYZ), and a widespread heat wave accompanied by high humidity that continues to challenge airline and airport operations.

• Toronto Pearson reported the highest disruption with 112 delays and 56 cancellations.
• Montreal-Trudeau followed with 70 delays and 33 cancellations.
• Vancouver experienced 53 delays and 15 cancellations.
• Ottawa Macdonald-Cartier saw 40 delays and 19 cancellations.
• Toronto City Centre recorded 39 delays and 28 cancellations.
• Calgary reported 37 delays and 6 cancellations.
• Air Canada recorded the highest airline disruption with 90 delays and 86 cancellations.
• Jazz (ACA) followed with 60 delays and 69 cancellations, while Porter Airlines logged 64 delays and 9 cancellations.
• WestJet, Air Canada Rouge, Air Transat, United, American Airlines, and Lufthansa also experienced operational disruption.

Heavily Disrupted Canadian Airports

Toronto Pearson International Airport

Canada’s busiest airport recorded 112 delays and 56 cancellations, the highest totals nationwide. Air Canada and Jazz (ACA) accounted for the largest share of disruptions, while Air Canada Rouge, Porter Airlines, Air Transat, WestJet, American Airlines, Endeavor Air, and Lufthansa also faced schedule changes.

Montreal-Trudeau International Airport

Montreal-Trudeau experienced 70 delays and 33 cancellations. The largest disruption involved Air Canada and Jazz (ACA), with additional delays affecting Air Transat, PAL Airlines, Lufthansa, Porter Airlines, and Royal Air Maroc.

Vancouver International Airport

At Vancouver, airlines reported 53 delays and 15 cancellations. Air Canada recorded the highest number of disruptions, while Jazz (ACA), United, American Airlines, Porter Airlines, Air Canada Rouge, SkyWest, Pacific Coastal Airlines, Fiji Airways, and Horizon Air were also affected.

Ottawa Macdonald-Cartier International Airport

Ottawa saw 40 delays and 19 cancellations. Jazz (ACA) and Porter Airlines accounted for most of the disruption, alongside Air Canada, PAL Airlines, Air Canada Rouge, Republic Airways, and WestJet.

Toronto City Centre Airport

Operations at Toronto City Centre were impacted by 39 delays and 28 cancellations. Nearly all disruption involved Jazz (ACA) and Porter Airlines, two of the airport’s primary operators.

Calgary International Airport

Calgary reported 37 delays and 6 cancellations. Air Canada experienced the most cancellations, while WestJet, WestJet Encore, United, Porter Airlines, Cargojet, Air Canada Rouge, Condor, Discover Airlines, and Flair Airlines also recorded delays.

Edmonton International Airport

Edmonton registered 22 delays and 8 cancellations. Air Canada and Air Canada Rouge led the disruption, with delays also affecting Porter Airlines, Jazz (ACA), United, and Central Mountain Air.

Québec City Jean Lesage International Airport

Québec City experienced 20 delays and 7 cancellations. Air Canada reported the most cancellations, while Pascan Aviation, Central Mountain Air, PAL Airlines, Air Inuit, Air Liaison, and Jazz (ACA) also saw operational impacts.

Winnipeg Richardson International Airport

Winnipeg recorded 7 delays and 3 cancellations, with Air Canada experiencing all cancellations. Porter Airlines also reported delays.

Regina International Airport

Regina reported 3 delays and 4 cancellations. Air Canada accounted for all cancellations, while Jazz (ACA) and WestJet Encore experienced delays.

Airlines Impacted by Flight Cancellations

Air Canada

The country’s largest carrier recorded the highest disruption today, July 3, with 90 delays and 86 cancellations, affecting flights through Toronto, Montreal, Vancouver, Calgary, Ottawa, Edmonton, Québec City, Regina, and Winnipeg.

Jazz (ACA)

Operating many regional services for Air Canada, Jazz (ACA) reported 60 delays and 69 cancellations, with significant disruption centered on Toronto City Centre, Ottawa, Montreal, and Toronto Pearson.

Porter Airlines

Porter Airlines experienced 64 delays and 9 cancellations, with many disruptions occurring through Toronto City Centre, Ottawa, Edmonton, Toronto Pearson, and Vancouver.

WestJet

WestJet recorded 23 delays, primarily through Calgary and Toronto Pearson, while also experiencing disruption in Ottawa.

Air Canada Rouge

Air Canada Rouge reported 15 delays and 11 cancellations, with operations affected in Toronto Pearson, Vancouver, Ottawa, and Edmonton.

Air Transat

Air Transat logged 19 delays, mainly through Montreal-Trudeau and Toronto Pearson, as flights experienced operational disruption.

What Is Causing Flight Cancellations Throughout Canada Today?

Flight cancellations throughout Canada today are being driven by operational strain from systemic staff and crew shortages, compounded by a partial runway closure at Toronto Pearson International Airport (YYZ), as well as a widespread heat wave and high humidity affecting airport and airline operations. These combined factors have reduced operational flexibility, increased aircraft turnaround times, and contributed to cascading delays and cancellations across multiple Canadian airports as airlines work to recover schedules.

What Can Affected Passengers Do?

• Check your airline’s latest flight status before leaving for the airport.
• Allow additional travel time when departing from busy airports such as Toronto Pearson, Montreal-Trudeau, or Vancouver.
• Monitor notifications from your airline for schedule changes or rebooking options.
• Keep essential medications, chargers, travel documents, and other necessities in your carry-on baggage.
• Speak with your airline if your itinerary requires rebooking or alternate travel arrangements.
• If connecting through airports such as Calgary, Ottawa, or Toronto City Centre, remain alert for possible changes to onward flights.
• Retain receipts for eligible expenses if your flight is significantly delayed or cancelled, subject to airline policies and applicable passenger rights.

Learn More

Overview of Canada Flight Cancellations

Disruption remained widespread throughout Canada’s aviation network today, with Toronto, Montreal, Vancouver, Calgary, Ottawa, Edmonton, Québec City, Winnipeg, and Regina all experiencing varying levels of operational impact. Air Canada, Jazz (ACA), and Porter Airlines accounted for the largest share of disruptions, while WestJet, Air Canada Rouge, Air Transat, United, American Airlines, and Lufthansa also reported affected services. The most significant disruption remained concentrated around Toronto, where both Toronto Pearson and Toronto City Centre experienced substantial cancellations and delays, while Montreal, Vancouver, and Ottawa also handled elevated levels of disruption. Author’s Observation: Flight information is based on FlightAware and may change with live updates. Travelers should monitor schedules and stay flexible with their plans.
As operational pressures persist, travelers flying through Toronto, Montreal, Vancouver, and Calgary are encouraged to monitor their flight status closely before beginning their journeys.

Source: Different airports and FlightAware