Adopted a 2 year old, 90 lb Yellow Lab about 5 years ago. Flew from Detroit to Kankakee to pick her up. The return flight was fine, but I could not help but wonder what would happen if this dog, which I had no history with, decided she did not like to fly as it was now dark and it was just her and I.
My parents have two labs that fly in their Cherokee without a problem. They do however use the special dog harnesses that loop through the seat belts for safety - both for the dogs and themselves.
Chris