Originally Posted by
MSPeconomist
NO, the upgrade window opens at 5 pm ATL time, 6/4/2 days before the flight (for example, Tuesday for a Monday flight, etc.). Some upgrade also seem to happen in the middle of the night, perhaps around 2 am ATL time.
In the past, we would have advised the OP to set free seat alerts on EF but sadly DL has taken away that option.
Thanks for info. The thing is I don't want to pay $89 for the upgrade to EC. I just need my economy seat :-(