Aitutaki Airport IATA: AITis served by Air Rarotonga (http://www.airraro.co.ck) with daily flights from Rarotonga. There are flights three to five times daily except Sundays where two flights are operated that take approximately 45 minutes.
There is a small cafe at the airport, selling Atiu coffee and some other local produce. There is no ATM at the airport.
Flights are around $200-250 each way, and the morning flights there and the afternoon flights back are be reserved for people doing day or overnight trips.
It is possible to do a day trip from Rarotonga, which includes flights, a bus tour of the island, a lagoon cruise, and lunch. Regular price is $499, but lookout for last minute specials down to $400.
There are rumours of a locals flight in the evening that offers cheaper fares than the daytime flights.