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Update, April 5:  NASA announced the launch time in May 6 is 10:34 pm ET.

Update, April 2, 2024:  The launch of Starliner CFT has slipped to May 6 due to ISS operational issues.

Update, March 22, 2024:  NASA and Boeing say they are targeting May 1 for the launch.  The time was not announced.

Update, March 18, 2024:  The launch has been delayed until May.  The ISS schedule has to accommodate a large number of spacecraft arriving and departing this spring and a docking port will not be available for Starliner until “early May.” A specific launch date has not been announced. We are using May 10 here only as a placeholder.

Update, February 25, 2024:  NASA Commercial Crew Program Manager Steve Stich said during a pre-launch briefing for Crew-8 that the Starliner CFT flight is currently targeted for April 22, 2024.

Update, June 1, 2023: The launch has been indefinitely postponed.

Original Entry: On March 29, 2023, NASA and Boeing set July 21, 2023 as the “No Earlier Than” launch date for Boeing’s Crew Flight Test of the CST-100 Starliner commercial crew spacecraft on an Atlas V rocket from Launch Complex-41 at Cape Canaveral Space Force Station (CCSFS), FL.

An uncrewed test flight, the Orbital Flight Test, took place in 2022. This is the first flight of Starliner with people aboard — NASA astronauts Barry “Butch” Wilmore and Sunita “Suni” Williams.

The launch has been delayed many times and the July 21 date is contingent upon NASA coordinating with the U.S. Space Force that operates CCSFS and has another Atlas V launch scheduled for about the same time.

Starliner was developed by Boeing through a Public-Private Partnership with NASA as a competitor to SpaceX’s Crew Dragon. NASA wanted two crew service providers for redundancy and to keep costs in check. NASA does not own the vehicles, but purchases services from the companies and encourages them to find other customers as well. Crew Dragon won certification by NASA in 2020 and now routinely takes NASA and private astronauts to orbit.


May 6
9:30 pm - 11:59 pm