The cheapest Madrid to Belize return flight on the radar right now is €661, flying with KLM via one or more connections. It covers departures in November 2026, and every dated link below opens that exact MAD–BZE search on Skyscanner. The price we usually record on this route is €681. Across 11 recorded checks it has ranged between €661 and €713. Our sampling points to November 2026 as the cheapest month to fly Madrid to Belize.
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 Madrid? We track 30 other departure cities for Belize, 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 Madrid to Belize is often still worth booking within a day or two of the fare we found.