The cheapest Athens to Reunion return flight on the radar right now is €884, flying with Air France via one or more connections. It covers departures in February 2027, and every dated link below opens that exact ATH–RUN search on Skyscanner. The price we usually record on this route is €765. Across 42 recorded checks it has ranged between €651 and €988. Our sampling points to February 2027 as the cheapest month to fly Athens to Reunion.
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 Athens? We track 46 other departure cities for Reunion, 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 Athens to Reunion is often still worth booking within a day or two of the fare we found.