Canton Island Airport — Abariringa, Kiribati

History looms far larger than current traffic at CIS, a remote coral atoll airstrip in Kiribati's Phoenix Islands that once served as a vital refueling stop for transpacific flying boats during the golden age of long-distance air travel. Also known by its indigenous name Abariringa, Canton Island later hosted a Cold War-era tracking station tied to American space and missile programs, leaving behind infrastructure disproportionate to the atoll's tiny resident population today. Scheduled commercial service is essentially nonexistent now, with the airstrip seeing occasional government, research, or emergency flights rather than any regular route network. The atoll's isolation in the central Pacific, thousands of kilometers from any major population center, keeps logistics and supply exceptionally difficult even by remote-island standards.