How to get to Koh Samui by Airplane

by Air plane, you have two options -- 
Flying to Ko Samui or flying to Surat Thani and then connecting by bus and ferry to the islands. Flying to Ko Samui While flying to Ko Samui is preferable, the island's airport is owned by Bangkok Airways and until quite recently they were the only airline that flys there. Now THAI and Bangkok Airways fly the route but fares remain artificially high and, if you're flying out of Ko Samui, there is a 300B domestic departure tax -- the highest domestic departure tax in Thailand. Bangkok Airways runs almost 20 flights a day between Bangkok and Ko Samui. 

https://www.flickr.com/photos/cchu/2914725308/

Airline which direct flight to Koh Samui 
(Depart from Suvarnabhumi International Airport ,Bangkok)
- Bangkok Airways
- Thai Airways

Airline which flight to Suratthani then transfer by Bus to Donsak pier continue by ferry to Nathon or Lipa noi pier.
(Depart from Don Muang Airport ,Bangkok)
- Thai Air Asia
- Nok Air
- Thai Lion Air
- Thai Smile Airways

The new terminal and check in at Koh Samui Airport, Thailand.

The cheapest fares are on the first and last flight of the day and go for 2,000B one way, fares through the rest of the day can be as high  (all fares above are before the various taxes, fuel surcharges and insurance surcharge which airlines don't deem to include in the fare, along with the 300B departure fee gouge). Flight time is 60 to 90 minutes depending on the aircraft used (prop or jet). 

The new terminal and check in at Koh Samui Airport, Thailand.

The airport is located a 20 minute drive from Chaweng Beach and a five minute drive from Big Buddha Beach.

The new terminal and check in at Koh Samui Airport, Thailand.

Facts Basically, the fastest (and, not suprisingly most expensive) way to get to the islands from Bangkok is to fly from Bangkok to Ko Samui and then take a ferry to the island of your choice. The slowest (and cheapest) is to take a bus from Bangkok to Chumphon or Surat Thani and then take the night boat from there. If you're going to Ko Tao, make your ferry connection at Chumphon. For Ko Samui and Ko Pha Ngan, go to Surat Thani. Below are some other pointers;

Credit: travelfish.org