Aeronauts are professionals who make use of flying airships to transport passengers across the world. This method of travel is easily the fastest way to get around, however, it comes with a few drawbacks.
Airships typically use magic crystals as fuel, and the amount of heat required to lift the ships means they must make frequent stops to recharge, which takes a great deal of time, or the help of a wizard or sorcerer. All of this means that travel by air, while fast, is not very efficient, and is as such very expensive.
Aeronauts usually cater their services to the rich and famous, however, they are for the most part adventurers first, and businessmen second, going wherever the winds take them.