Originally Posted by
rkkwan
Planes don't stay on the same route. CGN is one of the longer 752 routes, so the plane goes out early and comes back relatively late.
The CGN flight is scheduled into EWR at 13:55. Most of the others return earlier to EWR. One of those aircraft can easily return from Europe in time to serve, say, CO65 to LAX, then return overnight to EWR as a red eye, fly EWR-FLL, FLL-EWR, and be back at EWR by 3pm or 4pm, well in time for the next day's trip to Europe.