The City and County of Honolulu Public Bus Service ("The Bus") offers direct service to and from the airport. Bus Route 20 heads east through Kalihi, downtown Honolulu, and beyond. Fares are $2.50 and buses arrive every 30 minutes from about 5 am-6 pm. Most rental car agencies are located offsite.
SpeediShuttle offers door-to-door rideshare transportation to and from Honolulu International Airport. For $14.55, SpeediShuttle whisks you to Waikiki/Honolulu Harbor within 20 minutes of check-in with the Shuttle Attendant. Shuttle stops are located on the ground level adjacent to Baggage Claim C (Interisland Terminal) and Baggage Claim H (Diamond Head Terminal), and curbside at the Overseas Terminal (between Baggage Claim D and E). Ask SpeediShuttle Greeters and Shuttle Attendants in red aloha print shirts to help arrange pickup and door-to-door transportation.