As there are no hotels at the Dinard Airport here is the next best thing, a list of hotels within 7 miles of the airport. If you would like a larger selection of hotels to choose from please see this link. It shows hotels in Pleurtuit where Dinard Airport in located. The hotel on this list closest to the airport is the Kyriad Saint-Malo Dinard, at a little over two miles from the airport.
Hotel Formule 1 Saint Malo Dinard (La Richardais)