It is not necessary to present a passport if you're traveling from the United States as a U.S. citizen. You are only required to show proof of identification when traveling to the beautiful Aloha State.
What is the longest flight in the world by distance? The longest flight in the world by distance is New York (JFK) to Singapore (SIN) on Singapore Airlines clocking in at 9,537 miles. What plane can fly the farthest in the world?
The closest country to Hawaii is technically the United States itself, as Hawaii is an integral part of the United States and is located in the Pacific Ocean, about 2,400 miles (3,900 kilometers) southwest of California. However, if you're looking for the closest foreign country to Hawaii, that would be Japan.
Los Angeles Airport or Daniel K. Inouye International Airport (HNL) are two major airport options for those travelers who want to go from the USA to Australia as quickly as possible.