Report Shipping a dog from US to Canada in General Border Collie Discussion Posted June 27, 2014 I flew with a dog from Canada to the US. He'd gone from the US to Canada by car. Aside from the fact that he was in Canada *just* long enough for his health papers to expire, it wasn't a big deal. He was up there for training, and so I took him to the trainer's vet & got new papers. Flying with a dog gets you through customs REALLY quickly US-Canada isn't usually a problem. I found a customs or import/export website & got all the proper health papers & vaccinations. I'm not sure about shipping a dog unattended, but I can't imagine it's that much more trouble. Alaska Airlines, if they are an option, was absolutely awesome. I've also flown a dog attended, and shipped one unattended on Delta with no trouble. All three dogs flew in the fall/winter. There can be summer weather restrictions. You might make sure you wouldn't have trouble shipping a dog from Canada, if you're not a Canadian citizen. It was definitely easier flying across the boarder than driving... but we were crossing between WA & BC, where the road crossings are always freakin' busy no matter what time of day or year.