NASA, Boeing Modify Commercial Crew Contract

In 2014, NASA awarded a Commercial Crew Transportation Capability contract to Boeing to fly astronauts to and from the International Space Station with its Starliner spacecraft. As part of its contract, Boeing was awarded up to six crewed flights to the orbital complex.

After a thorough evaluation, NASA and Boeing have mutually agreed to modify the contract. As part of the modification, the definitive order has been adjusted to four missions, with the remaining two available as options. The next Starliner flight, known as Starliner-1, will be used by NASA to deliver necessary cargo to the orbital laboratory and allow in-flight validation of the system upgrades implemented following the Crew Flight Test mission last year.  NASA and Boeing are targeting no earlier than April 2026 to fly the uncrewed Starliner-1 pending completion of rigorous test, certification, and mission readiness activities.  Following Starliner certification, and a successful Starliner-1 mission, Starliner will fly up to three crew rotations to the International Space Station. 

“NASA and Boeing are continuing to rigorously test the Starliner propulsion system in preparation for two potential flights next year,” said Steve Stich, manager of NASA’s Commercial Crew Program. “This modification allows NASA and Boeing to focus on safely certifying the system in 2026, execute Starliner’s first crew rotation when ready, and align our ongoing flight planning for future Starliner missions based on station’s operational needs through 2030.”

Certification of Boeing’s Starliner remains important to NASA’s goal of sustained human presence in low Earth orbit and dissimilar redundancy is essential to supporting the agency’s goals and international obligations.