The cheapest Madrid to San Jose return flight on the radar right now is €515, flying with Avianca via one or more connections. It covers departures in March 2027, and every dated link below opens that exact MAD–SJO search on Skyscanner. That is roughly 13% below the €594 this route usually costs. Across 81 recorded checks it has ranged between €512 and €1,228. Our sampling points to March 2027 as the cheapest month to fly Madrid to San Jose.
We do not post a price and leave it to age. Each fare is re-checked against Skyscanner on a schedule and carries the time it was last confirmed. Not flying from Madrid? We track 46 other departure cities for San Jose, listed at the foot of this page.
Cheap fares do not hang around. If this one has already gone, nudge the dates either way by a day or two; Madrid to San Jose is usually still decent value around the same window.