August is the cheapest month to fly this route, with average fares around $382 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $411 | $378 | Peak | |
| June 2026 | $388 | $352 | ||
| July 2026 | $388 | $333 | ||
| August 2026 | $382 | $368 | Best |
Departing on Tuesday offers the lowest average fares at $372. Friday departures are the most expensive at $409, a difference of $37.
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 Cancun is August, with average round-trip fares around $382. The lowest fare found in August is $368.
Tuesday departures are the cheapest, averaging $372 round trip. The most expensive day is Friday at $409.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $411 compared to $382 in the cheapest month. June is a solid middle-ground option at $388.
Flying in August instead of May can save you approximately $29 per round trip. The cheapest month averages $382 while the most expensive averages $411.
Airlines, flight times, price calendar, and more for Phoenix to Cancun
View PHX → CUN Details