<Ul> <Li> Peggy Whitson , NASA Astronaut , holds the record for the longest single spaceflight by a woman when she surpassed Italian astronaut Samantha Cristoforetti 's 199 days , 16 hours during Expedition 52 in 2017 . She returned to Earth in September 2017 , having spent approximately 290 days in space . Third is American astronaut Sunita Williams with 195 days on the ISS where she was a member of Expedition 14 / Expedition 15 ( 2006 -- 2007 ) . </Li> </Ul>
<Ul> <Li> Peggy Whitson , NASA Astronaut , holds the record for the longest single spaceflight by a woman when she surpassed Italian astronaut Samantha Cristoforetti 's 199 days , 16 hours during Expedition 52 in 2017 . She returned to Earth in September 2017 , having spent approximately 290 days in space . Third is American astronaut Sunita Williams with 195 days on the ISS where she was a member of Expedition 14 / Expedition 15 ( 2006 -- 2007 ) . </Li> </Ul>
who set a new record for the longest space flight by a woman
who set a new record for the longest space flight by a woman
Peggy Whitson
Peggy Whitson