Obtain a valid United States passport. Although American Samoa is a U.S. territory, the Western Hemisphere Travel Initiative (WHTI) now requires that all U.S. citizens travelling outside the U.S. exit with a valid passport. You will also need a valid passport if you ever plan on returning to the U.S.
Obtain a visa to visit American Samoa. If you plan to move to American Samoa, you'll need a non-immigrant visa, but obtaining one of these visas might require you to have already secured employment in American Samoa, in which case, you might have to visit the island first as a prospective job applicant.
Get a job in American Samoa either online or by visiting the island.
Apply for a non-immigrant visa. United States citizens applying for visas to American Samoa are subject to the same rules as non-U.S. citizens applying for visas to the U.S.
Book accommodations. Some companies offer to find housing for U.S. emigrants before they arrive in American Samoa. If you do not want to contract their services, you can stay in a local hotel and search for housing by yourself or through a local real estate office.
Book a round-trip plane ticket to American Samoa. When you arrive in American Samoa, their customs officials will ask you to present proof of a valid return plane ticket that departs from American Samoa within 60 days of your arrival. Even U.S. citizens cannot stay any longer than this period unless they have a non-immigrant visa (see Resource 2).
Pack your bags and go. If you have successfully obtained a non-immigrant visa, you can purchase a one-way flight.