Kerala state has four operational international airports as of 2019 and is the only Indian state to have four international airports along with Tamil Nadu. Kerala is also the only state with the closest proximity to multiple international/domestic airports in the country. All four international airports lie in very close proximity, which makes it easy for all the people in Kerala to access air travel. The state also has four defence airports that are widely used by the Indian Armed Forces. Airports in Kerala provide domestic transport, support tourism in Kerala and also serve the high number of expatriates belonging to the state. The presently operating airports in the state of Kerala are as follows: