August is the cheapest month to fly this route, with average fares around $366 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $426 | $358 | Peak | |
| June 2026 | $375 | $301 | ||
| July 2026 | $368 | $300 | ||
| August 2026 | $366 | $348 | Best |
Departing on Monday offers the lowest average fares at $358. Thursday departures are the most expensive at $402, a difference of $44.
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 Austin to Cancun is August, with average round-trip fares around $366. The lowest fare found in August is $348.
Monday departures are the cheapest, averaging $358 round trip. The most expensive day is Thursday at $402.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $426 compared to $366 in the cheapest month. June is a solid middle-ground option at $375.
Flying in August instead of May can save you approximately $60 per round trip. The cheapest month averages $366 while the most expensive averages $426.
Airlines, flight times, price calendar, and more for Austin to Cancun
View AUS → CUN Details