Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Boise (51% of total searches to Idaho). The next most popular destinations are Coeur d'Alene (20%) and Idaho Falls (16%). Searches for hotels in Twin Falls (13%) are also popular.
KAYAK users have found double rooms in Idaho for as cheap as $53 (Soda Springs) in the last 3 days. The average price is $272.