Hi Rachel!
Thank you for visiting the Moms Panel!
I always allow at least three hours from the time our flight lands, to the time of our dinner reservation. That being said, we travel internationally, have to wait for our luggage, and then proceed to collect our hire car. (I am also someone who wants enough time to have everything unpacked and tidied away before we go to dinner.) If you only bring carry-on luggage, and take Disney's Magic Express, it could be quicker, but I honestly think you may be cutting it too fine, in order to comfortably arrive at your reservation. If you are able to change it, I would recommend that you do so. All dining reservations can be made (or amended)
online, or by calling 407 939 3463.
If you have any other questions, please come back and ask me - I would be happy to help you plan your magical vacation!