Passports and visa: U.S. citizens must have a valid U.S. passport to enter Dominica. No visa is required for stays less than 6 months if you have an onward or return ticket, confirmation of accommodation, and can produce evidence of your ability to maintain yourself. There is a departure tax of US $22 assessed when leaving Dominica. Children under twelve years of age are exempt from the departure tax.
NOTE: Be aware that Caribbean cruises that begin and end in the United States (closed loop cruises) do not require that you travel with a valid passport. However, should you need to disembark due to an emergency and you do not have a valid passport, you may encounter difficulties entering or remaining in a foreign country. You may also have difficulty attempting to re-enter the United States by air because many airlines will require a valid passport before allowing you to board the aircraft. As such, we strongly recommend that you always travel abroad with your valid passport.