If you come from Don Mueang International Airport, you can sit A1 to mochit and take the BTS to asok station, if you by taxi should 300 B by merter. If you come from Suvarnabhumi Airport, you should go to the airport B layer, sit airport link to Makkasan station, turn the MRT subway, sit to Sukhumvit station, time is longer,if you by taxi you need about 350 B by merter.