I have, I flew Opus and our three cats from Dublin to Barcelona. You need a large crate, with enough room for your dog to turn around- I don't know if there are special innoculations need for inter state transportations but check that out too. For us all our animals needed innoculations and papers to travel, and it is even more difficult for returning, we have had to have them microchipped, passports done up, a license issued from the department of agriculture...eeek.
My advice is not to feed your dog before traveling and make sure he has been taken out that morning for a walk. It was funny in BCN, we were waiting at the conveyor belt for our luggage and the animals to arrive and they did, cat, cat, large basset, bag, cat, very funny.