Ambassador, British Airways Executive Club, easyJet and Ryanair
Join Date: Sep 2011
Location: UK/Las Vegas
Programs: BA Gold (GGL/CCR)
Posts: 15,928
I'm afraid the check in counters only open 3 hours before departure (the desks have also moved to Zone A).
You probably will make the connection ok, T1 is easy to get around ... but you might have a longish walk depending on gate assignments.