Izmir Adnan Menderes Airport is accessible directly by some flights and by connection through Istanbul.
When you go outside of the Adnan Menderes airport arrival terminal (international or domestic) you will see taxis and HAVAS shuttle Buses. Please go through HAVAS bus and ask where it is heading. You have to take Cesme. The other one is Izmir downtown. Be careful. One way Izmir Airport - Cesme is 27 Turkish Lira (around 4 Euro). It takes around 90 minutes. You can get off at Cesme Main Bus Station. You can get taxi or minibus.
Havas Shuttle Bus Schedule
Duration Approximately 90 minutes. Fare 27 TL (VAT Included) ~ 4 Euro
From Cesme Main Bus Station to Grand Ontur Hotel
You can get minibus which is heading Dalyan (Cesme-Dalyan) for every 20 minutes. It is 4 TL (around 0.5 Euro)