Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Belfast (60% of total searches to Ulster). The next most popular destinations are Donegal (15%) and Letterkenny (13%). Searches for hotels in Cavan (11%) are also popular.
KAYAK users have found double rooms in Ulster for as cheap as €33 (Belfast) in the last 3 days. The average price is €188.