Hi there....
Should take you about 10 min (once you exit the parking lot and barring no major traffic). Here you go :
Follow World Drive until you get to the ramp toward EPCOT/ DOWNTOWN DISNEY (take this).
Stay STRAIGHT to go onto EPCOT CENTER DR
Merge onto I-4 E toward ORLANDO.
Take the SR-535 exit, EXIT 68, toward LAKE BUENA VISTA
Turn RIGHT onto FL-535 S/ S APOPKA VINELAND RD/ KISSIMMEE-VINELAND RD.
Got down through 3 lights (or so) and take a right into Vistana main drive........
However......that being said, at the end of the night, I-4 is often a zoo. To get around this, we often follow directions to DD/Marketplace. Once on Buena Vista Drive, you'll pass DD/Marketplace on the left of you. Go to Hotel Plaza Blvd and make a RIGHT. You will wind around the DD hotels and come out at the Goodings shopping center directly in front of you. Make a right here (so make sure you are in one of the two right-hand lanes). A couple lights down and you'll hit Vistana.
Hope this helps.
PS : I always remember when going TO WDW, take I-4 WEST (I think....GO WEST YOUNG MAN ! to find gold). I know it's weird, but it's how I remember. SO you reverse on the way home to your offsite hotel and go I-4 EAST.
