The cheapest London Gatwick to Reunion return flight on the radar right now is £1,323, flying with Air France via one or more connections. It covers departures in October 2026, and every dated link below opens that exact LGW–RUN search on Skyscanner. The price we usually record on this route is £891. Across 71 recorded checks it has ranged between £595 and £1,323. Our sampling points to October 2026 as the cheapest month to fly London Gatwick 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 London Gatwick? We track 47 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 London Gatwick to Reunion is often still worth booking within a day or two of the fare we found.