Nauru International Airport — Yaren, Nauru

INU is the code for Nauru International Airport, the sole airport of Nauru, the world's smallest island nation, located in the central Pacific. The airport is served almost exclusively by Nauru Airlines, which connects this remote republic to destinations including Brisbane, Nadi, and other Pacific island points, making INU an essential lifeline for a country with no other scheduled international transport. Nauru's economy, once heavily dependent on phosphate mining that reshaped much of the island's interior, now relies partly on this air link plus offshore processing arrangements with Australia. Given the island's tiny size and limited flight frequency, air travel to INU can be infrequent and tickets often need advance planning.