Originally Posted by ekozie

This.

For some reason this page >> http://www.delta.com/planning_reserv...lone/index.jsp >> seems to indicate that red-eyes start at 9p



but I still remember reading something that it is 10pm.


Interestingly, there are exemptions for certain red-eye flights for UMs (i.e. domestic under 2 hours, etc.) that would make it seem like DL doesn't consider them "true" red-eyes.