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.

Air China’s daily flights to and from Mongolia mark an important milestone for the country’s efforts to end reliance on Western-built planes.

Air China will deploy China's domestically developed C919 on a daily Beijing-Ulaanbaatar route starting Aug. 12, its first international service.