I’ve taken dogs on planes at least 40 times. If you’re serious, if it’s for a dog you want, I would suggest you take the pup yourselves. Otherwise it won’t likely happen!
First to check to see if there’s room on the plane and if there is and if you change your mind it’s refundable ( on WestJet for sure)
Make sure the dog has a rabies shot. Get health certicate from Abraham. Canada doesn’t need one, but I think US Customs might
Find a crate. Advertise on this message board and Facebook Friends and Lovers of Barra and Melaque. Or order one from Amazon
Good luck!