August is the cheapest month to fly this route, with average fares around $112 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $224 | $172 | Peak | |
| June 2026 | $165 | $97 | ||
| July 2026 | $128 | $56 | ||
| August 2026 | $112 | $56 | Best |
Departing on Tuesday offers the lowest average fares at $135. Thursday departures are the most expensive at $177, a difference of $42.
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 Miami is August, with average round-trip fares around $112. The lowest fare found in August is $56.
Tuesday departures are the cheapest, averaging $135 round trip. The most expensive day is Thursday at $177.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $224 compared to $112 in the cheapest month. June is a solid middle-ground option at $165.
Flying in August instead of May can save you approximately $112 per round trip. The cheapest month averages $112 while the most expensive averages $224.
Airlines, flight times, price calendar, and more for Houston to Miami
View IAH → MIA Details