As of 2026, U.S. citizens do need formal authorization to enter Kenya, but the traditional "visa" has been replaced by the Electronic Travel Authorization (eTA). Following a major policy shift in 2024, Kenya moved toward a "visa-free" model that still requires all visitors (except for certain African nationals) to apply for an eTA online before travel. You must apply through the official government portal at least 3 days before your flight. The process requires a valid passport (valid for 6 months), a recent photo, and your travel itinerary (flight and hotel details). For those who travel to Kenya frequently for business, a 5-year multiple-entry visa is still available specifically for U.S. nationals, which offers more long-term flexibility than the standard single-entry eTA. It is also essential to carry proof of Yellow Fever vaccination if you are arriving from a country where the disease is endemic. Always print a physical copy of your approved eTA, as many airlines will not allow you to board your flight from the U.S. without seeing the digital or printed confirmation first.