Americans flying out of Canada

We live in canada and fly out of the states and have non problems or complications. Where is it that you want to fly to?

No problems. Some of our company flights have easier connections if we start at Vancouver vs. SeaTac, and there's no issues. Just make sure you're not delayed by border crossing traffic.

Never tried it but I know that Seattle residents use those Canadian flights quite often.

Not that we've found. We're flying Honolulu to Toronto to Paris and the same coming back. And Air Canada has the widest seats and deepest seat pitch (spacing between rows).

Here's an earlier thread on the same topic: https://community.ricksteves.com/travel-forum/transportation/any-americans-choose-to-use-vancouver-bc-airport-as-flight-departure-and-re-entry