It is recommended that you rent a car during your visit to Hawaii to make it easy to travel between the different islands and sights. The average cost of renting a car is around $50-70 per day. Flights between the islands can cost between $100-200 per person each way, while taxi rides can cost $3.50 per mile. Most attractions have parking spaces available.
If you have extra time, consider island hopping to Molokai and Lanai. You could also go on a horseback riding adventure in Maui or Kauai, take a lava boat tour in the Big Island or try various water sports. If you have less time, eliminate some of the less important tourist spots to maximize your time. Choose the ones that interest you the most, and remember to book tours and reservations in advance.
The main airports in Hawaii are Honolulu International Airport (HNL) located in Honolulu, Maui's Kahului Airport (OGG), Kona International Airport (KOA) on the Big Island and Lānaʻi Airport (LNY). Each airport is located approximately 30 minutes to an hour from the city center.