International Arrival
Rarotonga International Airport (RAR) is the usual arrival airport. Cook Islands Tourism lists flights from Auckland, Sydney, Brisbane, Honolulu and Papeete; a Christchurch route was seasonal through October 2026, not a permanent year-round promise. Check Air New Zealand, Jetstar, the Alaska/Hawaiian Honolulu service, and Air Rarotonga/Air Tahiti for current service. Crossing the international date line can change arrival dates.
Continue to Aitutaki
Air Rarotonga flies between Rarotonga and Aitutaki (AIT), commonly in about 50 minutes, with multiple daily services published. Reserve domestic space and leave connection buffers. Atiu and Mangaia have limited scheduled flights; northern islands generally require demand-based charter planning. There is no verified regular tourist passenger ferry or interisland dive liveaboard linking the main islands. Aitutaki lagoon boats are day excursions, not interisland transfers.
Start at Rarotonga and add Aitutaki if you want the lagoon. Divers must observe no-fly guidance before any interisland or onward departure.