Ryanair will not be flying to Krakow, Warsaw isn't for sure though its strange that its not loaded.
Wizz will be flying to Warsaw WMI. Though the distance between Hungary and Krakow is the same as the distance between Warsaw and Krakow, the connections are a million times better.

It might be worth it to hire someone just to drive you. I'm guessing it'd be under €300 and take 5 hours (from, for instnace, Miskolc). Maybe motion sickness would also be an issue there, though. You'd get to pass the Tatara mountians.

An other option would be taking the train to Vienna Meidling, transfering to Vienna Airport, and flying direct on Austrian or LOT from there.