AirHint found the following cheapest return flights from Luxemburg (LUX) to Barcelona (BCN) in September 2026 (see full year).
Return flights
| 09 Sep - 14 Sep | Lufthansa | ||
| 09 Sep - 14 Sep | Luxair | direct | |
| 25 Sep - 27 Sep | Ryanair | ||
| 04 Sep - 18 Sep | Luxair | direct |
Also check the deals for one-way flights from Luxemburg to Barcelona in September.
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