To save up to 25% on this flight, we recommend booking at least 23 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Iowa to Brazil from $949 1-2 weeks out and tickets from $1,243 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, March can be a great choice for travel to Brazil. Flights to Brazil from Iowa in March are about $758 on average during March, but can be found for as low as $600.