Originally Posted by
Amak
never said it was I have horrible sinus issues and so breathing even through thin cloth for 7 hours isn’t for me. So I’m trying to find an alternative.
Take a connecting flight that minimizes the Canada-US flight time is probably the only thing you can do then. (E.g. depending on the airports, connecting in SEA or ORD or so) I'd expect it to be enforced on all US-Canada flights.
That said, are there even 7hr US-Canada flights? Maybe YVR-FLL?