ORIX Rent a Car
National
Avis
Alamo
Budget
Nippon Rent-A-Car
Nissan Rent-A-Car
Europcar
Generally, for a better deal at Miyazaki Airport it’s recommended to book in a timely manner (to save up to 70%). Cheapflights recommends you book around 84 days prior to your pickup date. Booking as early as you can also increases the likelihood that you’ll get the ideal car.
Yes, renting a vehicle at Miyazaki Airport for a month is certainly possible.