August is the cheapest month to fly this route, with average fares around $380 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $397 | $349 | ||
| June 2026 | $401 | $340 | Peak | |
| July 2026 | $392 | $341 | ||
| August 2026 | $380 | $366 | Best |
Departing on Thursday offers the lowest average fares at $363. Friday departures are the most expensive at $428, a difference of $65.
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 Phoenix to Mexico City is August, with average round-trip fares around $380. The lowest fare found in August is $366.
Thursday departures are the cheapest, averaging $363 round trip. The most expensive day is Friday at $428.
Based on current pricing trends, booking for August travel offers the best value. Avoid June if possible, as fares average $401 compared to $380 in the cheapest month. May is a solid middle-ground option at $397.
Flying in August instead of June can save you approximately $21 per round trip. The cheapest month averages $380 while the most expensive averages $401.
Airlines, flight times, price calendar, and more for Phoenix to Mexico City
View PHX → MEX Details