August is the cheapest month to fly this route, with average fares around $1098 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1157 | $890 | ||
| June 2026 | $1167 | $890 | ||
| July 2026 | $1199 | $1149 | Peak | |
| August 2026 | $1098 | $941 | Best |
Departing on Wednesday offers the lowest average fares at $1119. Friday departures are the most expensive at $1245, a difference of $126.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Houston to Sao Paulo is August, with average round-trip fares around $1098. The lowest fare found in August is $941.
Wednesday departures are the cheapest, averaging $1119 round trip. The most expensive day is Friday at $1245.
Based on current pricing trends, booking for August travel offers the best value. Avoid July if possible, as fares average $1199 compared to $1098 in the cheapest month. June is a solid middle-ground option at $1167.
Flying in August instead of July can save you approximately $101 per round trip. The cheapest month averages $1098 while the most expensive averages $1199.
Airlines, flight times, price calendar, and more for Houston to Sao Paulo
View IAH → GRU Details