The Zone A single is €1.30 bought in advance through the operator's app, at a kiosk or at a ticket shop, and €2.30 from the driver. That is a €1.00 mark-up on a €1.30 fare - 77% - for the identical journey on the identical bus. Students and pupils face the same gap: €0.80 in advance, €1.30 on board.
The network is divided into two zones: Zone A is the city within a 5 km radius, Zone B is everything beyond it. Zone B singles are €1.80 in advance and €2.80 on board, and a Zone A ticket will not carry you past the boundary - on the Ammoudara line Zone A ends at the CANDIA MARIS stop, and on the PAGNI line at IKA (Fanaria).
The airport bus terminates at the central bus station on Leoforos Ikarou, beside the port. Lions Square and the market streets are about a kilometre uphill - 12-15 minutes on foot with your bags, or a second ticket and another ride. Guides that describe the airport bus as dropping you in the centre are describing the port.
KTEL Heraklio-Lasithi's coastal route to Hersonissos, Stalida and Malia, and the Agios Nikolaos trunk route, start from the city bus station. Some coaches pass the airport, but the dependable boarding point is the station, so the airport-to-resort trip is really two legs and can cost you an extra 30-40 minutes.
The official taxi rank is outside the terminal, and only licensed taxis may use it. Anyone soliciting inside the arrivals hall is quoting a price above the meter, and the airport pickup supplement is exactly the thing that makes an inflated quote sound plausible.