Fua'amotu International Airport — Nuku'alofa, Tonga

Fua'amotu International Airport, given the code TBU, occupies the southeastern part of Tongatapu, the largest island in the Kingdom of Tonga, a short drive from the capital, Nuku'alofa. As the country's principal port of entry by air, it handles the bulk of Tonga's international connections, historically linking the archipelago to Auckland, Sydney, and Nadi in Fiji through carriers such as Air New Zealand and Fiji Airways. Tonga remains one of the few Pacific nations never formally colonized by a foreign power, and TBU serves as the practical starting point for visitors heading toward the kingdom's coral reefs, whale-watching waters, and outer island groups like Vava'u and Ha'apai. Domestic services from Fua'amotu connect Tongatapu to these more remote islands, though flight schedules can be limited and subject to change given the modest size of Tonga's aviation market.