My daughter was relocating with her husband and their two dogs, one a puppy. The older dog was able to travel in the carrier in the cabin with us, which he has done several times. The 10 month old puppy had to travel in cargo, united airlines were very accommodating making sure the kennel was safe, correct size and well maintained. Once he was loaded into the cargo area we were notified he was on board ready to travel. He was brought to us in a timely manner once we arrived at our destination.