Qantas Airways is Australia's flag carrier and largest airline, widely regarded as one of the world's leading long-haul carriers. Founded in the Queensland outback in 1920, it is the third-oldest airline in the world still operating under its original name, and has built a strong reputation for safety and reliability over more than a century of continuous service. The airline operates an extensive domestic network across Australia as well as international routes spanning Asia, Europe, the Americas, Africa, and the Pacific. Its low-cost subsidiary Jetstar expands its reach into budget travel markets both domestically and internationally. Qantas is a member of the oneworld airline alliance and has a long-standing partnership with Emirates, under which the two carriers coordinate schedules and codeshare on flights between Australia and Europe via Dubai. The airline is headquartered in Mascot, New South Wales, adjacent to its main hub at Sydney Airport.