As well as Bangkok to Samui, there are numerous other destinations you can fly to from Koh Samui.
Koh Samui to Hong Kong – with Cathay Pacific-owned airline DragonAir
Koh Samui to Phuket – with Bangkok Airways. Flying this route lets you easily get to Phuket’s best beaches.
Koh Samui to Kuala Lumpur (Sabang Airport) – with Fireflyz airline.