Daniel K. Inouye International Airport (HNL) is Hawaii's main gateway, serving Honolulu and the island of Oahu, and a rental car is by far the most flexible way to see how varied the island is beyond the Waikiki resort strip. HNL is a major rental hub, with a consolidated rental car facility connected to the terminal area, so pickup generally follows a clear, well-signed process rather than scattered off-airport shuttles, and the wide competition among operators here keeps availability strong for most of the year.
From the airport, central Honolulu and Waikiki are only a short drive along the H-1 freeway, while the North Shore's famous surf beaches, including Haleiwa and Sunset Beach, are reached in roughly forty-five minutes to an hour via the H-2 and Kamehameha Highway. Heading the other direction, the H-3 freeway cuts through the Koolau mountains to reach the Windward Coast, with towns like Kaneohe and Kailua around twenty-five to thirty-five minutes from the airport, offering a noticeably different, greener side of Oahu than the leeward city side. Farther west, the historic sites at Pearl Harbor sit around twenty minutes from the airport, an easy add-on to a first-day itinerary before heading further afield.
Driving is on the right throughout Hawaii, and Oahu's freeway network is modern and well maintained, though H-1 through central Honolulu carries heavy commuter traffic on weekdays, especially during morning and afternoon rush hours, so building in extra time around the city core is wise. There are no tolls anywhere on Oahu's roads. Parking in Waikiki and central Honolulu can be limited and metered, while the North Shore and Windward routes are more relaxed, with roadside beach parking common. Tropical downpours arrive quickly and pass just as fast, so a brief slowdown in visibility is normal rather than a sign to pull over entirely on most of the island's main roads.