Hi Susan!
Welcome to planDisney.
At this time there are no complimentary airport transfers to/from Walt Disney World for Disney Resort guests, so I have been using Mears Connect bus service, and it is a good and affordable way to travel from all the terminals at Orlando International Airport to any of the Disney Resort hotels. Please visit their website for details on pricing, and how to book. They operate 24 hours a day, 7 days a week, and also offer an Express Service (which is direct to your hotel, but it may be shared with other guests). If you don't want to book in advance, walk-ons are also welcome. If you used Disney's Magical Express before it was discontinued, the check-in and boarding locations are in the same place for Mears Connect.
I thoroughly recommend Mears Connect and will always book them for whenever I don't rent a car at the airport. They are comfortable, clean, and efficient.
If you'd rather get to your Disney Resort hotel as fast as possible (and who wouldn't?), you might prefer to take a car to your Disney Resort hotel - I recommend using a Lyft ride. If you download the Lyft app to your phone, you will see a selection of available cars (with prices and varying pickup times and locations at the airport). You make payment on the app before your ride, so it's straightforward to use and doesn't require advance bookings.
Remember that once you arrive at your Disney Resort hotel, all guests are welcome to use the complimentary
Disney transport - buses, boats, monorail and Disney Skyliner (depending on where you are staying) which are available to take you all around the Resort.
Please come back and visit us if you have any further questions, and you can also
send me a direct question if you wish. We will be happy to help you plan your magical vacation at Walt Disney World!
Sue