A C919 aircraft arrives at Tianjin Binhai International Airport. JIA TIANYONG/CHINA NEWS SERVICE

The C919, China's domestically developed narrowbody passenger jet, will begin its first scheduled international commercial service next month, a step industry experts said will test the aircraft's ability to operate beyond domestic markets and help build confidence for wider overseas expansion.

The daily round-trip service, operated by Air China, will connect Beijing Capital International Airport and Ulaanbaatar's Chinggis Khaan International Airport in Mongolia from Aug 12, the airline said.

According to the schedule, outbound flight CA723 will depart Beijing at 3 pm Beijing time and arrive in Ulaanbaatar at 5:15 pm local time. The return flight, CA724, will leave Ulaanbaatar at 6:30 pm local time and arrive in Beijing at 8:35 pm Beijing time.

The route marks the first time the C919, manufactured by Commercial Aircraft Corp of China, will enter a regular international commercial passenger aviation market.