Hi Melissa!
I'm so excited for you! My family has visited
Walt Disney World Resort in May many times and we love that time of the year!
If you booked your reservation through Disney, you absolutely can add flights to your reservation! (If you booked through a different travel provider, I encourage you to reach out to them directly.) You have a couple of options regarding modifying your
vacation package. You can visit your
My Disney Experience account and modify it or you can call and chat with a Cast Member in Disney Resort Hotel Reservations at (407) 939-1936.
I know you are going to want to maximize your time in the theme parks but if you decide you need an afternoon break to recharge, I encourage you to visit your
Disney Resort hotel and check out the pool. Many of the pools are themed and they all make for a great break as you prepare to enjoy your evening.
Thanks so much for sharing your question with the Disney Parks Moms Panel! Please let me know if you need any other information as you plan your magical Walt Disney World Resort vacation!
Kari