Canada introduced new regulations in response to cases like yours [0].
It required some persistence but Air Canada did abide by the regulations in my case last year. My flight from Vancouver to Toronto was delayed by a couple hours and I missed the connection to Edinburgh. They, as required, booked replacement flights via Air France (not a partner airline) as the next Air Canada or partner airline route would have departed more than 9 hours late.
It required some persistence but Air Canada did abide by the regulations in my case last year. My flight from Vancouver to Toronto was delayed by a couple hours and I missed the connection to Edinburgh. They, as required, booked replacement flights via Air France (not a partner airline) as the next Air Canada or partner airline route would have departed more than 9 hours late.
[0] - https://rppa-appr.ca/eng/right/flight-delays-and-cancellatio...