Hard question...
Early trips in the Mercury program ranged from 15 minutes to 3 days.
During Gemini, they were up for 4 to 8 days, and Gemini 7 was a duration mission of 2 weeks. (Long time to just be sitting in a chair.)
Apollo's trips to the moon were usually 8 to 14 days; when the Apollo craft was used on Skylab, stays were 1 month, 2 months, then 3 months.
Shuttle trips could usually go for about a week to 10 days, and could be extended for 14 if needed.
Russian cosmonauts have the record for duration; I think one guy was up for 440 days on Mir; our astronauts (and the Russians) usually stay on the ISS for about 4 to 6 months at a shot.
Early trips in the Mercury program ranged from 15 minutes to 3 days.
During Gemini, they were up for 4 to 8 days, and Gemini 7 was a duration mission of 2 weeks. (Long time to just be sitting in a chair.)
Apollo's trips to the moon were usually 8 to 14 days; when the Apollo craft was used on Skylab, stays were 1 month, 2 months, then 3 months.
Shuttle trips could usually go for about a week to 10 days, and could be extended for 14 if needed.
Russian cosmonauts have the record for duration; I think one guy was up for 440 days on Mir; our astronauts (and the Russians) usually stay on the ISS for about 4 to 6 months at a shot.
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Hi. The average keeps going up as we stay on the ISS. The astronauts on SpaceShipOne were in space for only a few minutes. http://www.richard-seaman.com/Aircraft/A… and http://www.youtube.com/watch?v=FNXahIoXM…