Qantas Airways has its hub at Sydney Airport as Australia’s largest airline. Founded in 1920 in Queensland, it is the world’s longest continuously operating airline and it is also one of the most profitable airlines in the world. Qantas’ 137 plane fleet provides service to 16 domestic destinations and 21 international destinations in 14 countries. Skytrax has also given it the distinction of world’s best premium economy class and best airline seat in premium economy class.