The expansion of tourism in Ko Samui has resulted in growth in building resorts, bungalows and luxury private villas on the island. This economic growth has led many businessmen from all over the world to invest in Ko Samui. With over 260 resorts and bungalows in Samui, counting from the end of year 2009, it has become Thailand’s second largest resort business behind Bangkok and surpassing Phuket.
Ko Samui Airport is a private airport originally built by Bangkok Airways, which is still the main operator and was for a long time the only airline with services to Ko Samui from mainland Thailand. The airport is now additionally served by Thai Airways International to Bangkok, Firefly Airlines to Kuala Lumpur, and SilkAir to Singapore. The budget option of getting from Bangkok to Samui by plane are Via Surat Thani Airport. ThaiSmile, AirAsia or NokAir fly into Surat Thani Airport (URT), then take a bus to Don Sak, and finally take a ferry from Don Sak to Ko Samui by Sertran Ferry
Via Chumphon Airport, Pathio Bangkok to Chumphon Airport, Pathio served by Nok Air and Happy Air with connections via Lomprayah high Speed ferry. Flights from Samui to Phuket and other in-Thailand destinations are available. In 2012, the Thai Government announced they are considering a second airport for Ko Samui.
Several ferries connect the island with the mainland, including the two aforementioned car/passenger ferries and from Don Sak to piers in the west of the island, near or in Nathon. Public buses to all parts of the mainland operate from a small bus station south of Nathon. Songthaews circle the ring road, and private taxis are available