How much is the shuttle bus from Lourdes airport into Lourdes? Also does it run every day and do you know the start and finish times for it?
There isn't a shuttle bus as such. There is regular local bus service between the airport and Lourdes/Tarbes and a few other towns in the area. See the Maligne web site for more information.
During the ski season (December to April) there is shuttle service to some ski stations. You need to contact the airport for more information.