So your pet is even larger? But you still want fast and safe delivery ? in cabin nanny flights start at $2300 . price may change due to the cost of the airline flights and market. X Large is a dog or cat that weighs 30 - 80 pounds. This is if you have a X large size dog that you still want delivered by flight, in cabin, not in cargo. There are a few airlines that will allow larger dogs to travel with an additional seat, this is only on select routes. And be case by case, your dog will "walk on" the aircraft and never be in a carrier. We travel only confirmed space, not standby.