Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Buenos Aires (80% of total searches to Northern Argentina). The next most popular destinations are Puerto Iguazú (11%) and Río Ceballos (5%). Searches for hotels in Mendoza (4%) are also popular.
KAYAK users have found double rooms in Northern Argentina for as cheap as $15 (Buenos Aires) in the last 3 days. The average price is $151.
In the last 72 hours, users have found Northern Argentina hotels for tonight for as low as $77 (Chacras de Coria). Users have also found 3-star hotels from $85 (Colonia del Sacramento) and 4-star+ hotels from $77 (Chacras de Coria).