MIAT Mongolian Airlines is the Mongolian national airline, headquartered in the MIAT Building in Ulaanbaatar, the capital of Mongolia. The airline operates international scheduled services from its base at Chinggis Khaan International Airport near Ulaanbaatar including flights to Berlin and Frankfurt. Miat codeshares with Aeroflot, Cathay Pacific and Korean Air. In recent years, airlines have increasingly co-operated in the form of co-ownership or coding of travel numbers, which is a form of co-operation between two and more airlines for the sale of flights at their own prices and with their own travel numbers.