The gondola from Kriens to Fräkmüntegg takes about 20 minutes, and an aerial cable car from Fräkmüntegg to Mt Pilatus (aka the Dragon Ride) takes about 3.5 minutes. However, usually, you have to wait for the Dragon Ride for a few minutes. All in all, it takes at least 30 minutes to get to the top of Mt Pilatus from Kriens.