China’s C919 Flies Its First International Route, to Mongolia

On August 12, 2026, Air China flew the domestically built COMAC C919 outside China for the first time, launching a daily scheduled route between Beijing and Ulaanbaatar, Mongolia. Flight CA723 left Beijing Capital International Airport at 3:00 p.m. local time and landed at Ulaanbaatar’s Chinggis Khaan International Airport about two hours later.

The return leg, CA724, departed Ulaanbaatar at 6:30 p.m. and landed back in Beijing at 8:35 p.m., according to Xinhua, which credited Air China as the source of the flight details. The route previously flew on a Boeing 737 MAX 8; Air China, which operates 12 C919s, is now flying one daily on the Mongolia service.

The aircraft received a water cannon salute on arrival in Ulaanbaatar, the customary greeting for a jet’s inaugural landing on a new route. The C919 entered commercial service with China Eastern Airlines in May 2023 and has flown only domestic Chinese routes since.

Why it took three years to leave China

The C919 is certified by China’s Civil Aviation Administration, but not by Europe’s EASA or America’s FAA, the two regulators whose approval opens most of the world’s air travel markets. EASA’s executive director said in 2025 that certification could take another three to six years, pushing it into 2028 to 2031 at the earliest, according to Air Data News.

Mongolia does not require that Western sign-off, which is why it became the first stop rather than a market with heavier traffic.

Production is a bigger constraint than paperwork. COMAC delivered 15 C919s in 2025, well short of its own 75-aircraft target, while Boeing and Airbus each hand over dozens of narrowbody jets a month. Fewer than 40 C919s fly today, all with Chinese carriers, leaving little of the independent reliability and maintenance-cost data that airlines abroad use to judge an unfamiliar type.

The jet also still depends on Western parts. Its CFM LEAP-1C engine comes from CFM International, a joint venture between America’s GE Aerospace and France’s Safran, and a brief 2025 US export license suspension underscored how exposed that dependency leaves the program. China’s homegrown CJ-1000A engine, meant to eventually replace it, is not yet ready.

The bigger picture

Boeing and Airbus have built their global dominance over decades on exactly the things the C919 still lacks: type certification nearly everywhere, deep supplier networks, and thousands of aircraft in service generating the operating data airlines rely on. Their duopoly held again through the first half of 2026, when Airbus outsold and outdelivered Boeing across nearly every major market.

China’s aviation ambitions go beyond a single Mongolia flight. COMAC flew the maiden test flight of a larger C919-600 variant on July 29, 2026, and the company has said Southeast Asia is next on its list for international expansion. Each step still has to clear the same certification and production hurdles that kept the original C919 grounded outside China for three years.