Pasquale and I have flown alot...i ALWAYS have his rabies and other shots certificate with me. However, unless the airlines specifically asks for a health certificate, i usually dont get one. A good idea would be to print out that airlines pet policy..that way if they give you a hard time you have their policy right in front of them. "Some" airline reps "think" they know the policy when they really dont. ****I learned this from a pet traveling website.