King Airport Shuttle is the only shuttle service I recommend if you are visiting Oahu. They are prompt, courteous, reliable, economical, friendly and knowledgeable. Their vehicles are clean, roomy and air-conditioned. You don't share a ride with anyone else but your own family. They can accommodate up to 4 people for the same $30 fee. Pretty economical compared to other services. Thank you, Alex, for a great, smooth ride and all your great advice.