Ryanair used to call Katowice airport Krakow (Katowice) airport. In fact, Katowice is still often used as a gateway to Krakow.
The problem is Katowice airport is in the middle of nowhere and is very far away from Krakow.
Even from Katowice city centre, Katowice airport is 60 minutes away by bus and Krakow airport is... 60 too!
Katowice Airport to Krakow takes one hour and forty five minutes by direct bus. Though at least there is still a direct one to take I guess.
It takes just twenty minutes to get from Krakow airport to the centre by train.