Airway: The Adnan Menderes International Airport serves domestic and international flights periodically everyday. Metro and Airport shuttle buses are available between the city center and Airport. For detailed information  you can visit the following web sites:

Bus: The Turkish bus transportation system is comprehensive and the fares are reasonable which enables you to get anywhere you want in Izmir. 
Izmir has a large “Bus Station” in Pınarbaşı which has intercity buses to the destinations across Turkey.

Railway: Izmir has two railway stations in  Basmane and Alsancak which are very near to the city centre. For more information you can visit the following web sites.

Marine Transportation: Izmir has the largest port after Istanbul. It plays a vital role for the Turkish economy and also transportation in Izmir.

Innercity Transportation

Inner-city transportation is cheap and offers various alternatives like buses, ferries, subway, taxis, shared taxis and Izban.  Izban is a commuter railway system serving İzmir and its metropolitan area and is used by approximately 150,000 passengers daily.
For public transportation, citizens use KENTKART which is a kind of chipcard used on public buses, ferries, subway and enables the users to travel more cheaply around İzmir. There are also discounts for the students.   
For detailed information you can visit the following web site:

Transportation to DEU Campuses
DEU is a multi-campus University dispersed throughout the city of Izmir at various locations.
For this reason the students can use different transportation modes like, buses, ferries, shared taxies and subway.