There is a great variety of high quality hotels in the close proximity of the Vilnius University. Thanks to the central location of the University, most of the hotels are within a walking distance.
Hotel prices and distance from central venue:
Grand Hotel Kempinski ***** (3 min) from 169 EUR
https://www.kempinski.com/en/vilnius/grand-hotel-kempinski/
Amberton Cathedral Square Hotel **** (3 min) from 80 EUR
https://ambertonhotels.com/vilnius/
Artis Centrum Hotels **** (5 min) from 70 EUR
http://www.artis.centrumhotels.com/lt/
Congress Avanue Hotel **** (8 min) 100 EUR
Vilnius Home B&B (15 min)
http://www.vilniushome.eu/ from 32 EUR