Originally Posted by
UVAhoo06
I usually fly NW and I'm not sure that we can "uncheck-in" ourselves via the website--so, I thought the same about the CO.com site. Clearly CO.com is much better than NWA.com in this respect.
FYI you can do the exact same process on NW. Just go to the flight check in screen and it will give you the option to change your seats in the same place as you would reprint a boarding pass. I think, though I'm not sure, you can do the same thing on the Manage My Reservations page.