Much as we do not wish to discourage people who want to stay for one night, please be aware that we are 10 kms outside of town and therefore if you arrive on a late evening train and plan to leave the next morning on an early bus, you might find it more sensible to stay in town.
We do have knowledge of alternative accommodation in Carcassonne close to the train station, or within easy reach of the navette which serves Carcassonne airport and are happy to provide this upon request.