July is the cheapest month to fly this route, with average fares around $323 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $371 | $320 | Peak | |
| June 2026 | $339 | $286 | ||
| July 2026 | $323 | $277 | Best | |
| August 2026 | $330 | $325 |
Departing on Wednesday offers the lowest average fares at $322. Friday departures are the most expensive at $354, a difference of $32.
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 Dallas to Mexico City is July, with average round-trip fares around $323. The lowest fare found in July is $277.
Wednesday departures are the cheapest, averaging $322 round trip. The most expensive day is Friday at $354.
Based on current pricing trends, booking for July travel offers the best value. Avoid May if possible, as fares average $371 compared to $323 in the cheapest month. June is a solid middle-ground option at $339.
Flying in July instead of May can save you approximately $48 per round trip. The cheapest month averages $323 while the most expensive averages $371.
Airlines, flight times, price calendar, and more for Dallas to Mexico City
View DFW → MEX Details