KTEL (www.ktelherlas.gr) runs Iraklio's blue-and-white city buses. Fares are €1.20 (€2 if purchased on board). Two lines are free. The blue line runs hourly from 9.30am to 4.30pm, starting at Hotel Apollonia and stopping at the Heraklion Archaeological Museum, the Historical Museum of Crete, Koules Fortress and Knossos, while the red line runs hourly from 9.15am to 4.15pm from the port, making more or less the same stops. (These buses are not to be confused with the pay hop-on, hop-off blue-and-red buses.)
A daily bus pass is €5.
For the airport, catch bus 1 from Plateia Eleftherias.
Car & Motorcycle
Iraklio’s streets are narrow and chaotic, so it's best to drop your vehicle in a car park (between €5 and €12 per day; though not the cheapest option, it doesn't get much more central than Theseus Parking) and explore on foot. All the international car-hire companies have branches at the airport. Local outlets line the northern end of 25 Avgoustou and include Caravel, Hertz, Motor Club, Loggetta Cars and Sun Rise.