Air Canada changed our flight time, doable?

[PatandStu]

At the end of our cruise, Feb 5-12 NCL breakaway from Nola, we were originally scheduled to fly to Toronto at 3:30. Nice, leisurely breakfast, no rush to get off the ship. Then, flight was changed to 4:45. A bit of a wait at the airport, but ok. 
Now, air Canada says the only flight they can put us on is 12:30. So, up early, a fast breakfast, keep our luggage so we can disembark early, get through customs, & grab a cab to the airport. 
A bit of a rushed way to end a relaxing cruise vacation. But, the alternative is a night in a hotel with a flight out the next day. Extra cost plus another day off work. 
Our TA says it’s doable, and because we booked the entire trip through Air Canada Vacations, AC is responsible should we miss our flight. 
I’m sceptical about that last point!

Has anyone else made a 12:30 flight? I’d be interested in hearing about your experience.

Pat

[Fouremco]

It's about a 30 minute taxi/uber ride to the airport, probably less on a Sunday morning. So even if you want to arrive there at a safe three hours before your flight, you don't need to be off the ship until 9:00. I agree with your TA, this is very doable.

[LHT28]

Even with the later flight  they kick you off the ship by 9 -930  anyway

I would get off before 9 & just  get through the lines at the airport  then relax

[anaf444]

It is totally doable with self-assist. We always do it. It's a pain to wake up for an early breakfast, but we never had issues with an early flight like yours.