From Krabi bus to Lomprayah Donsak Pier, taxi to Don Sak Pier, then ferry to Koh Samui. 5 h 27 min ฿1388. From Krabi minivan to Surat Thani then bus and ferry to Koh Samui - Nathon. 6 h 48 min ฿445. From Krabi Bus Station bus to Phang Nga, bus to Surat Thani, then bus and ferry to Koh Samui - Nathon. 7 h 18 min ฿540. From Krabi Bus Station Mini Van to Khao Sok then Mini Van to Koh Samui. 10 h 30 min ฿825. From Krabi bus to Krabi airport, fly to Koh Samui airport, then taxi to Ko Samui. 2 h 36 min ฿6649.