Xining Caojiabao International Airport (XNN) operates Shenzhen Airlines Xining Caojiabao Airport out of Terminal 3.A variety of services, dining options, and retail stores are available at the new Terminal 3 to guarantee a smooth and pleasurable travel experience. Arriving at least two hours prior to domestic flights is advised for travelers flying with Shenzhen Airlines in order to complete check-in, luggage drop, and security procedures. With their strategic placement around the terminal, the airline’s check-in desks ensure a seamless start to your journey.