July is the cheapest month to fly this route, with average fares around $248 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $310 | $279 | Peak | |
| June 2026 | $269 | $214 | ||
| July 2026 | $248 | $214 | Best | |
| August 2026 | $276 | $259 |
Departing on Tuesday offers the lowest average fares at $247. Thursday departures are the most expensive at $280, a difference of $33.
The best time to fly is July. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Houston to Cancun is July, with average round-trip fares around $248. The lowest fare found in July is $214.
Tuesday departures are the cheapest, averaging $247 round trip. The most expensive day is Thursday at $280.
Based on current pricing trends, booking for July travel offers the best value. Avoid May if possible, as fares average $310 compared to $248 in the cheapest month. August is a solid middle-ground option at $276.
Flying in July instead of May can save you approximately $62 per round trip. The cheapest month averages $248 while the most expensive averages $310.
Airlines, flight times, price calendar, and more for Houston to Cancun
View IAH → CUN Details