15 EAN Holdings LLC (Operating as Enterprise, Alamo and National car rental companies)
Report Abuse. If you are a U.S. citizen, then you do not need a passport for Hawaii. Hawaii is part of the United States. If you travel to the Caribbean, Canada, Mexico or other places outside of the United States, then you will need a passport starting January 23, 2007 for air travel. Source(s): http://travel.state.gov/travel/cbpmc/cbp...
Even though passports are not required at this time for U.S. citizens who sail on cruises to the above destinations that begin and end in the same U.S. port, we strongly recommend that all cruise passengers travel with a valid passport anyway.f course, situations like these are rare, but they can happen. Passports are not required for U.S. citizens traveling to or returning directly from Hawaii or a U.S. territory, including Guam, Puerto Rico, the U.S. Virgin Islands, American Samoa, Swains Island, and the Commonwealth of the Northern Mariana Islands.