Direct holidays?

hi,been to greece twice this year with direct holidays and its bugging me why on both occasions they wanted to pick us up over 4 hours b4 our flight time.i know there are other pick ups but on both occasions we were 15 mins from the airport.when we looked at other opperators pick up times they only needed 2 and a half hours.we paid 15 euros for a cab and had another 2 hours by the pool,we were not the only ones who did this especially families with youngsters.if you have ever been to zante airport you know you wont get a seat,so you dont wont to be getting there any earlier than need be.probably gonna book with another company next time or do our own transfers.bye