As of early 2026, U.S. citizens do not need a traditional "visa" to enter Kenya, but they must obtain an Electronic Travel Authorization (eTA) before departure. Kenya officially transitioned to a "visa-free" system in 2024, replacing the old eVisa with this new digital screening process. You must apply for the eTA online at least three days before your trip; it requires a valid passport with 6 months of validity, a digital photo, and proof of your travel itinerary. The cost is approximately $30 to $35 USD. For those traveling frequently for business or tourism, a "Five-Year Multiple Entry" option is specifically available for U.S. nationals. Note that while the eTA streamlines entry, you must still present a printed copy upon arrival in Nairobi or Mombasa, and you may be denied boarding if you do not have the authorization confirmed before your flight.