The cheapest Istanbul to Madagascar return flight on the radar right now is €748, flying with Aegean Airlines + Ethiopian Airlines via one or more connections. It covers departures in January 2027, and every dated link below opens that exact IST–TNR search on Skyscanner. Across 59 recorded checks it has ranged between €684 and €750. Our sampling points to January 2027 as the cheapest month to fly Istanbul to Madagascar.
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 Istanbul? We track 52 other departure cities for Madagascar, 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 Istanbul to Madagascar is often still worth booking within a day or two of the fare we found.