Lanta, Phi Phi & Phuket
In high season Koh Lipe is connected to Koh Lanta by speedboat. Boats run twice a day from November until April. From Koh Lanta there are onward connections to Koh Phi Phi and Phuket.
Krabi Ao Nang
From Krabi or Ao Nang, cheapest way is to take a minibus (or private taxi) to Pak Bara, from where you can take the boat to Koh Lipe. This route is open all year.