Most major car rental agencies at Miami International Airport (MIA) do not provide a direct shuttle to the Port of Miami; instead, travelers are expected to use the "MIA Mover" to the Rental Car Center and then take a taxi or Uber. However, Avis, Budget, and Hertz operate specific "off-airport" locations in Downtown Miami (often near the SE 2nd St area) that provide a complimentary shuttle service specifically for cruise passengers. The Avis/Budget "Q8M" location is a dedicated cruise ship shuttle hub; when you return your car here, a shuttle runs every 20-30 minutes to drop you off directly at your ship's terminal. Similarly, Enterprise and National often offer shuttle services from their downtown locations, but these can be subject to "peak ship" demand and may require a confirmed reservation that specifies you are a cruise passenger. For the most seamless 2026 experience, booking your return at a "Downtown" or "Port-servicing" location rather than the airport will save you a $30+ rideshare fee, as these shuttles are included in the rental price for those specific branch codes.