Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Puerto Iguazú (51% of total searches to Iguazu River). The next most popular destinations are Foz do Iguaçu (27%) and Curitiba (19%). Searches for hotels in Ciudad del Este (3%) are also popular.
KAYAK users have found double rooms in Iguazu River for as cheap as $12 (Curitiba) in the last 3 days. The average price is $101.
In the last 72 hours, users have found Iguazu River hotels for tonight for as low as $18 (Foz do Iguaçu). Users have also found 3-star hotels from $21 (Puerto Iguazú) and 4-star+ hotels from $35 (Curitiba).