Honolulu International Airport (HNL) on Oahu is Hawaii's major airport, serving as the entry point for most of Hawaii's visitors. All major domestic carriers and many international carriers serve Oahu, so you can get here from just about anywhere.
There are also direct flights from the U.S. mainland to Maui, Kauai, and Hawaii Island, but for the most part, you may need to connect through Oahu to get to the neighbor islands including Lanai and Molokai.
If traveling interisland, it is recommended that you arrive at least 90 minutes prior to your flight.
Flight times from Honolulu International Airport (HNL), Oahu to:
Lihue Airport (LIH), Kauai: 30 minutes
Kahului Airport (OGG), Maui: 30 minutes
Kapalua-West Maui Airport (JHM), Maui: 30 minutes
Molokai Airport (MKK), Molokai: 20 minutes
Lanai Airport (LNY), Lanai: 25 minutes
Hilo International Airport (ITO), Hawaii Island: 50 minutes
Kona International Airport (KOA), Hawaii Island: 45 minutes
Molokai, Lanai and Maui
The airports on the islands of Molokai and Lanai are limited to commuter airlines, as are the two smaller airports on Maui: Kapalua-West Maui and Hana Airport. In addition, there is daily ferry service from Lahaina Harbor in Maui to both Manele Bay in Lanai and Kaunakakai Harbor in Molokai.