To save up to 20% on this flight, we recommend booking at least 48 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from New Hampshire to Brazil from $1011 1-2 weeks out and tickets from $1016 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Brazil. Flights to Brazil from New Hampshire in August are about $793 on average during August, but can be found for as low as $652.