AKA Grenoble Lyon Airport
Ryanair lists the Grenoble Airport as the 'Grenoble Lyon Airport', this is similar to Ryanair calling the Beauvais Airport - Beauvais Paris Airport. As with Beauvais' distance from Paris the Grenoble Airport is far from Lyon, about 53 miles/85 kilometers, with a travel time of about an hour.
There is regular coach service to Lyon from the Grenoble Airport. The trip is advertised as taking 50 minutes and costs 20 euros for a single and 30 euros for a around trip ticket (summer 2006 prices).
If you are using the Grenoble Airport to travel to Lyon it would be a good idea to figure your coach fare and travel time when comparing prices. The official Lyon Airport - Lyon Saint-Exupery is 15 miles/25 kilometers from Lyon center and is reachable by coach in 30 to 50 minutes, depending what train station in Lyon center you get off at. Part-Dieu is at 30 minutes and Perrache is at 50 minutes. The Lyon Metro is accessible in 15 minutes: metro stop Mermoz-Pinel....