The cheapest Luxembourg to Hanoi return flight on the radar right now is €391, flying with China Southern via one or more connections. It covers departures in November 2026, and every dated link below opens that exact LUX–HAN search on Skyscanner. At 28% under the €547 we normally record here, it is one of the strongest LUX–HAN fares in our index. Across 67 recorded checks it has ranged between €391 and €1,330. Our sampling points to November 2026 as the cheapest month to fly Luxembourg 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 Luxembourg? We track 60 other departure cities for Hanoi, listed at the foot of this page.
Fares move quickly. If this Luxembourg 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.