I'm going to be flying with my sweet 13 pound, 9 month old puppy soon and I'd love to hear about your experiences and any advice! Her carrier is the approved size to be placed under the airplane seat. Thank you!
I flew with kittens awhile back and... that was something else. I know different airlines have different requirements. Ours for example required certificates of health and vaccinations (age appropriate) before they were allowed to board. Definitely check in with your airlines to make sure you have all your docs in order before hand.
I used to travel a lot with my chihuahua. My advice would be get him a comfortable travel bag and start using it as soon as possible so he gets use to it and has his smell. Put his favorite toy inside the bag and take some snacks with you, but in my case, I found it was better if he didn’t eat or drink much in the plane. Try to “make him go” in a permitted area right before entering the airport and immediately when you arrive. And avoid taking him out of the bag during the flight. Good luck!