How to get from the airport to the city? Please check this page.
How to get to Corvinus University of Budapest (CUB):
The University is located at Fővám squre 8. in the 9th district of the city. The nearest metro station is Kálvin square (Kálvin tér). (Download a metro map here.) If you come out of the metro station take tram number 47 or 49 going to the direction of the river Danube. Get off at the first station, at Fővám square. The University is right there on the left.
How to get to Central European University
From Kalvin Square to Deak Ferenc by tram 47-49 (or by Metro M3) and then on foot.
From Deak Ferenc square on foot
Regarding the accommodation in Budapest we can suggest two hotels nearby CUB:
Mercure Korona Hotel: 50-75 euro/night/person with breakfast.
Ibis Hotel Centrum: 75-100 euro/night/person with breakfast.