A subsidiary of Air Berlin (AB), Niki (HG) is an Austria-based low-cost carrier. It operates a hub at Vienna International Airport (VIE) and has designated Salzburg Airport (SZG) as a focus city. The airline is an affiliate member of the Oneworld alliance. Niki operates schedule passenger service and charter flights to more than 50 destinations in Europe, Africa and the Middle East. Although it is a budget airline, passengers receive free beverages and carry-on luggage. Some fares qualify for free checked baggage, seat reservations and seats with extra legroom.