I do not book airfare unless it's through the supplier as part of your vacation package. Generally, I recommend booking airfare separately from your Disney packages so you have more control on the timing of your flights, seat selection, etc.  However, if you book your airfare with your Disney package and have purchased Disney's travel insurance, your air transportation is protected under their coverage. If you choose to book airfare separately, I can provide my recommendations for airline, arrival/departure times, etc.