The cheapest Rome to Cancun return flight on the radar right now is €979, flying with Air Canada via one or more connections. It covers departures in November 2026, and every dated link below opens that exact FCO–CUN search on Skyscanner. The price we usually record on this route is €658. Across 98 recorded checks it has ranged between €572 and €1,524. Our sampling points to November 2026 as the cheapest month to fly Rome to Cancun.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Rome? We track 62 other departure cities for Cancun, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Rome to Cancun is often still worth booking within a day or two of the fare we found.