Air transat is scheduled to fly from toronto to POP starting December 14th.The Government of Alberta has announced that passengers on flights returning from out of country thru Calgary will only be subject to a 2 day quarantine. The test kit they give you is free but the instructions are still a bit vague. I have only ever gone thru Calgary to the DR once and it was on AC. It great not having to go thru Toronto or Montreal.
I think Air Transat is looking at that route again but it's still to early to tell.