July is the cheapest month to fly this route, with average fares around $349 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $386 | $278 | Peak | |
| June 2026 | $364 | $281 | ||
| July 2026 | $349 | $256 | Best | |
| August 2026 | $366 | $360 |
Departing on Monday offers the lowest average fares at $328. Saturday departures are the most expensive at $389, a difference of $61.
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 Austin to Mexico City is July, with average round-trip fares around $349. The lowest fare found in July is $256.
Monday departures are the cheapest, averaging $328 round trip. The most expensive day is Saturday at $389.
Based on current pricing trends, booking for July travel offers the best value. Avoid May if possible, as fares average $386 compared to $349 in the cheapest month. August is a solid middle-ground option at $366.
Flying in July instead of May can save you approximately $37 per round trip. The cheapest month averages $349 while the most expensive averages $386.
Airlines, flight times, price calendar, and more for Austin to Mexico City
View AUS → MEX Details