Malaysian low-cost carrier AirAsia (AK) operates non-stop flights to more than 75 airports across Malaysia, as well as cities throughout Asia. Its primary hub is located at Kuala Lumpur International Airport (KUL). Secondary hubs can be found at Kota Kinabalu International Airport (BKI), Penang International Airport (PEN), Kuching International Airport (KIA) and Senai International Airport (JHB). Its aircraft feature just Economy Class cabins. AK has a number of affiliate and subsidiary airlines, including AirAsia India, AirAsiaX, AirAsia Zest, Indonesia AirAsia, Philippines AirAsia and Thai AirAsia.