July is the cheapest month to fly this route, with average fares around $350 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $378 | $338 | Peak | |
| June 2026 | $352 | $334 | ||
| July 2026 | $350 | $339 | Best | |
| August 2026 | $358 | $349 |
Departing on Wednesday offers the lowest average fares at $340. Thursday departures are the most expensive at $378, a difference of $38.
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 Philadelphia to Cancun is July, with average round-trip fares around $350. The lowest fare found in July is $339.
Wednesday departures are the cheapest, averaging $340 round trip. The most expensive day is Thursday at $378.
Based on current pricing trends, booking for July travel offers the best value. Avoid May if possible, as fares average $378 compared to $350 in the cheapest month. August is a solid middle-ground option at $358.
Flying in July instead of May can save you approximately $28 per round trip. The cheapest month averages $350 while the most expensive averages $378.
Airlines, flight times, price calendar, and more for Philadelphia to Cancun
View PHL → CUN Details