He said: "I think it would act as a very strong deterrent and in fact there is some work with all the airlines together going on to bring that to the table, to see if that can be correctly arranged between us all.
"It's not going to happen overnight. But it's something we've all agreed is a good practical solution, we just need to work out how to do it between us consistently, so that it's managed correctly."
Ward said that problems are often caused by passengers drinking ahead of their flights in airport bars.
He said: "You can see it every day where people are drinking pints at six in the morning.
'I'm not trying to spoil people's holidays at all but it's not normal to drink a pint at six in the morning and that then manifests itself on-board the airplane where the alcohol takes a greater effect."
Jet2.com announced that it would be banning alcohol on early-morning flights last month.
It is believed to be the first airline in Europe to make the move and called on others to follow its lead.