The most convenient transportation for visitors in Honolulu is renting a car or taking a taxi. The public transportation system, TheBus, is also available with tickets starting at $2.75 for a one-way trip. Uber and Lyft are also available.
If you have more time, consider visiting Maui or Kauai to explore other islands of Hawaii. For a short trip, you could skip the island tour (Day 3) and spend more time relaxing on the beach or shopping (Day 2).
The main airport in Honolulu is Daniel K. Inouye International Airport (HNL) which is located 6 miles from the city center. Transportation options include taxi, Uber or Lyft, TheBus, or a private shuttle.