Airport taxis are very expensive. Are their any shuttle coach services from Malaga to Cala mijas
If you look at all the usual services (Travel Republic etc.) they will do a shuttle. Alternatively you could get the local train to Fuengirola and a taxi from there.
I go to my timeshare at the Riviera del Sol each year.
My normal procedure is to get the train to Fuengirola and then a taxi from the station as overall it's much cheaper. Costs the train fare + taxi which is about 35 euros.
You can catch the bus from Fuengirola to all resorts but I've not tried this.
Train to Fuengirola, then taxi, will cost 25 euros tops. If you want to shave almost 20 euros off that without any major inconvenience, follow up the train ride by jumping on the half-hourly Marbella bus that makes a mandatory stop at La Cala.
Train and bus is by far the cheapest ,and quite easy