417 is by far the easiest route IMHO. Never heavy traffic, 2 tolls @ $1.25 each.
Take exit 6 off 417 and follow straight into Disney, and follow signs to MK.
Save even more using 528. Don't get on it right away but instead go left at the first light when leaving the airport north exit. Little over a mile is next light (Conway), take two quick lefts to get on 528 west from there.
Returning to airport via I-4 east to 528 east, get off 528 at its exit 9 (Tradeport). Left and cross under, get into middle lane. Required right onto McCoy, next light is airport entrance (turn right).
Save even more using 528. Don't get on it right away but instead go left at the first light when leaving the airport north exit. Little over a mile is next light (Conway), take two quick lefts to get on 528 west from there.
Returning to airport via I-4 east to 528 east, get off 528 at its exit 9 (Tradeport). Left and cross under, get into middle lane. Required right onto McCoy, next light is airport entrance (turn right).
Well, 417 it is for me! I went that way last year and thought it was easy but Google maps showed it to be a longer way so was just wondering. Thanks so much for all of the advice!