A word of warning
The twilight checkin actually closes at 21.00 on the dot and if you happen to be in the queue at that time then its tough!
This happnened to us due to a delayed flight down from Manchester. We literally ran across Gatwick only to arrive at the check-in at 20.58, followed by several other couples from the same flight. Unfortunatley there was a couple already being checked in and by the time they had finished it had gone 21.00, at which time the system apparently shuts down automatically.
I shall be informing Virgin that if this is the case then they should advertise their Twiligth check-in with a suitable warning.
Needless to say I was not a happy camper as the whole idea of coming down from Manchester the night before was to take advantage of this facility.
Regards
PaulC