Admission to the Castle is subject to a fee from Monday to Saturday, between 9 am and 5 pm, which are also the opening hours of the Information Point and Interpretation Centre. Admission to the Castle is free for all visitors after 5 pm and on Sundays.
Ticket prices for a daily visits to the Trsat Castle from April 1st to September 30th are: €3.00 for adults, and €1.50 for pensioners, students, and children aged 7–18. A family ticket for the Castle, which includes two adults and two children over the age of seven is €8.00. Entrance to the Castle is free for persons with disabilities, children under seven years age, and for citizens of Rijeka and Primorsko – goranska county. Additionally, groups of 15 or more people receive a 10% discount.

During the period from October 1st to March 31st, the ticket price will be €2.00 for adults and €0.50 for students, pensioners, and children aged 7–18. The family ticket during this period will cost €4.50.