Originally Posted by
ISTFlyer
Just to be clear, OP;
- Are you traveling on a group ticket ( issued by the tour ) or you have booked your ticket by your self?
If the tour agency booked a ticket for ( 9+ persons ) in the same reservation at a corporate rate you won't be able to check-in online.
If you have booked yourself, arriving at the airport at 05:00 would be pretty enough and as AlicorporateUK mentioned, you would have time for a coffee and snack at the lounge.
Just the two of us. No group. Thank you.