In response to a PR nightmare over their terrible record with keeping pets safe during travel, United Airlines has announced a new pet travel policy. From now on, the only pets they will fly are dogs and cats. Included in the new rules is a ban on transporting a number of breeds of dogs (and several breeds of cats) in the cargo hold of their planes. All brachycephalic (short-nosed dogs like Pugs, Llasa Apsos, Boston Terriers, Pekinese, Affenpinscher, Bulldogs) dogs are prohibited from traveling in the cargo hold. The reason given is that such dogs are more likely to suffer adverse health effects while flying.
Source: FS – Dogs – TBM
United’s New Dog Travel Restrictions