Qantas is the national airline of Australia and is by far the country’s largest. It was founded in 1920, making it the third oldest airline still in existence in the world. Headquartered in a suburb of Sydney, New South Wales, Qantas operates flights to more than 80 destinations around the globe, including six cities in the United States. The airline has a good reputation for customer service, and both its business class and first class experiences are consistently given positive reviews. Qantas is part of the Oneworld alliance along with the likes of British Airways and American Airlines, making it a great choice for frequent flyers to travel to Australia.