check in on time
Check-in closes promptly 40 minutes before the scheduled time of departure,
we strongly recommend arriving at the desk at least an hour before... 
photo ID
UK domestic flights, passengers (over the age of 11) must present
photo identification...
Free seating for maximum flexibility
We operate a free seating policy which means that you can choose where you sit on the aircraft. easyJet operates a strict priority boarding system and you will be boarded by the sequence you checked in at.When you check in, you will be issued with a boarding pass. These are numbered in order, so the first passenger to check-in will receive number one, the second number two etc. These indicate the order in which passengers will board the aircraft, and are therefore NOT seat numbers.
The aircraft is boarded in groups, starting with passengers travelling with young children and passengers requiring assistance first, followed by passengers with group ‘A’ boarding cards, then B, C and finally group D. So in general, the earlier you check in, the wider the choice of seats you have when you board.