Samui airport, on the uber resort island of Koh Samui in the Gulf of Thailand, is by far my favourite in the world. It's not much more than a small complex of thatched buildings and being completely open, is the finest example of an eco friendly airport environment. Much as I wish it, obviously not all airports can be built this way as it comes down to climate and people traffic of course, but there are certainly many more island airports that could follow suit.
Samui airport belongs to Bangkok Airways who upgraded it in 1997 calling it their Natural Hub. It blends in amazingly with the surrounding fauna and flora and is the most relaxing place to chill before a flight. You can sit outside on weird shaped benches or if you must shop, Samui Park Avenue caters to those needs with it's cool top end stores like Jim Thompson and such. Even the ladies' loo is pretty with it's aquarium as the entrance. Oh and in the Best Airports Worldwide polls, Samui Airport ranks #9 in the Top 10.
Sitting there earlier today waiting to connect to Bangkok, I was unwrapping the banana leaf around my sticky coconut palm snack and sipping lemongrass juice, all provided as a courtesy by the airline, along with other delish food, even popcorn. All this while a breeze blows through the transit lounge and birds flit and chirp around me.
Seriously, this is air travel at it's best.