A hassle-free ferry ride toward Koh Phi Phi takes about 2 hours. Don't arrive very early at the harbor as there is not super much to do. Enjoy your tide with Trip Store Krabi / Viator.
A very convenient ferry to Koh Phi Phi from Phuket takes about 1 to 2 hours. With this trip, you can order hotel pick-up services. That's about $4 Extra.