If you return your rental car to Alamo Car Rentals at Miami International Airport after the designated hours, you will unquestionably be charged more. You may be subject to even steeper penalties based on how long you keep an Alamo vehicle past the pre-agreed rental period. Therefore, if your plans have suddenly changed or there is even a remote chance that you will be late, it is crucial to notify Alamo car rentals at Miami International Airport as soon as possible.