The cheapest Geneva to Hanoi return flight on the radar right now is €459, flying with China Eastern + Air China via one or more connections. It covers departures in November 2026, and every dated link below opens that exact GVA–HAN search on Skyscanner. That is roughly 12% below the €520 this route usually costs. Across 89 recorded checks it has ranged between €448 and €1,115. Our sampling points to November 2026 as the cheapest month to fly Geneva to Hanoi.
Every fare here is re-confirmed against Skyscanner automatically, and each one is stamped with the moment it was last checked, so you can see how fresh it is instead of taking it on trust. Not flying from Geneva? We track 60 other departure cities for Hanoi, listed at the foot of this page.
Fares move quickly. If this Geneva to Hanoi price has gone by the time you search, shift the dates a day or two either side, because the same route is often still cheap just next door.