Detailed answer

To get to Kailua Beach Park from Honolulu International Airport using public transportation, take TheBus route 19 or 20 from the airport to the Alapai Transit Center in downtown Honolulu, then transfer to route 56 or 57, which will take you to Kailua. The bus ride takes around 1 hour to 1 hour 15 minutes, depending on traffic. You can also take a taxi or shuttle from the airport to Kailua Beach Park.