There are two airports in Istanbul: Istanbul Airport on the European side and Sabiha Gökçen Airport on the Asian side. Istanbul Okan University is located on the Asian side of Istanbul and very near to Sabiha Gökçen Airport.
If you arrive at Sabiha Gökçen Airport, the only possible connection to the Tuzla Campus is the taxi. The yellow taxis are found just outside of the Arrival Terminal. One trip from the airport to the university costs approximately 25-30TL(4-5 Euros / 5-6 USD).
Check that taximeter is turned on before you start your journey.
Istanbul Airport (European Side Airport and very far from the university)
The airport is located on the European side, and you can reach Istanbul Okan University within 1,5 hours from there. You can use the following options to arrive at Istanbul Okan University from the Istanbul Airport.
Airport Bus + TAXI: Take the airport bus HAVAIST to Sabiha Gökçen Airport: Havaist buses (white bus with Havaist name on them) leave every 40 minutes from Istanbul Airport to Sabiha Gökçen Airport (Destination: Pendik). http://www.hava.ist/en/new-timetables
Please note that for all public transports and Havaist buses from Istanbul Airport, you need Istanbulcard which costs 6 Turkish Liras. You can get it from the machines called Biletmatik which can be found at the airports when you arrive.
You may insert minimum 10 Turkish Liras by cash to the machine and it will print out your Istanbulcard which will be ready to load credits and use on public transportation. You can use 10, 20 and maximum 50 TL banknotes for loading money on your card. Machines do not accept 100 TL notes.
Havaist Price: 30 TL (5 Euros/ 6 USD)
Once you are at Sabiha Gökçen Airport, you can take a taxi to Okan University.
More Expensive Option:
Taxi: You can take a taxi directly from the airport to Okan University which would cost approximately 250- 260 Turkish Liras. (45-55 USD / 40-45 Euro).