Boeing 's highly-anticipated 777X jet will now make its commercial debut in early 2027 instead of 2026. Delivery schedule Delay in certification process The first 777X jet was originally scheduled for delivery around 2020, six years after the program's launch in 2013. However, the timeline was pushed to 2026 and now has been delayed to early 2027. Cost implications Financial implications of the delay The delay in the delivery of Boeing's 777X jet is expected to cost the company between $1 billion and $4 billion in its third-quarter earnings report. Investment analysts have lowered their free cash flow estimates for 2026 after Ortberg acknowledged new certification challenges with the aircraft.