Originally Posted by
Milkman670
If I may chime in, we are flying Cun-Den-Yyc. After lots of reading the fine prints, I am finding our 72hr test will need to be in that window before boarding in Den and then into Canada.
You will need to qualify for entry to the US as well as Canada and you should expect your carrier to check documents & test results for both US & Canada at CUN and then again for Canada at DEN. Remember that the US rule is not 72 hours, but 3 calendar days. That is potentially helpful.