Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Toronto (73% of total searches to Southern Ontario). The next most popular destinations are Niagara Falls (16%) and Ottawa (7%). Searches for hotels in The Blue Mountains (4%) are also popular.
KAYAK users have found double rooms in Southern Ontario for as cheap as $30 (Gatineau) in the last 3 days. The average price is $415.
In the last 72 hours, users have found Southern Ontario hotels for tonight for as low as $91 (Niagara Falls). Users have also found 3-star hotels from $98 (Niagara Falls) and 4-star+ hotels from $118 (Toronto).