The cheapest Madrid to Tunis return flight on the radar right now is €237, flying with ITA Airways via one or more connections. It covers departures in May 2027, and every dated link below opens that exact MAD–TUN search on Skyscanner. The price we usually record on this route is €230. Across 69 recorded checks it has ranged between €155 and €339. Our sampling points to May 2027 as the cheapest month to fly Madrid to Tunis.
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 57 other departure cities for Tunis, 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 Tunis is often still worth booking within a day or two of the fare we found.