I'm planning to switch jobs in the US as a Canadian, so I have to get a new TN visa for that. It's a time-sensitive offer, so I would need to travel to the YVR airport and get the visa there, before returning to the US to start my new job.
Normally pre-COVID, this basically involves buying a round-trip ticket to Vancouver, but I'm not quite sure how things work now with the pre-departure molecular test and all that.
In particular, is there a way to travel (by air) to Canada to stay for a day (or even half-a-day at the airport) without needing to go through the COVID tests/quarantines. And if I do need to get tested before traveling to Canada, is it possible to use the same test result to travel back to the US (without needing to do another test in Canada)?