Buses to and from Leon - Cascantes?

I try to find out if it is posible to walk the first stage out of Leon to Cascantes, take a bus back to Leon, stay there over night, and then return to Cascantes with a bus next morning. The Confraternity of St. James says: " ... walk to Cascantes, which has 4 buses a day to and from León." I can not find them! Can anybody help me? ... numbers ... where ... when ...?

Thank you! I also found these two, but nothing in reverse. When I tried reverse on Alsa, I got nothing. I will see. May be somebody knows something. If not, there is always a taxi.
Yes, I am planning San Salvador, second half of October. That is late, so if the weather forecast says "no", we will go for a couple of weeks somewhere on Via de la Plata. I know that camino very well, so need no planning for that.
It is nice to hear that you like my videos! I like making them! I have one from Camino Portugues de la Costa, with Litoral and Variante Espiritual, which is ready. Put it on YouTube in a couple of weeks, I think.
Bjørg