I've always booked my Disney travel through the Walt Disney World site online. However, this time I have Delta Skymiles that I can use toward my tickets. Can you use Delta Skymiles when booking through Disney, or do you have to book your hotel and park tickets through Disney and then book your airfare separately through Delta to use Skymiles? Also, if you don't book your airfare directly through Disney, does that mean you can't use Mickey's Magical Express? Thanks for your help!