Watch: 777-9 begins certification flight testing

The 777-9 began certification flight testing at Boeing Field in Seattle on July 12, 2024. It's an important step as we work under the oversight of our regulator to get the airplane certified and deliver it to customers around the world.

The 777-9 is proudly designed and built in the Puget Sound region.

Thank you to our thousands of talented engineers, mechanics and teammates across the region who contributed to the airplane’s design, development, fabrication, assembly and testing.