I would suggest calling 511 from your cell phone when you land. Check on the 528 and I-4 (say Disney for the section you want) and if they're both clear, you're good to go. I drive I-4 every day and I would say most of the time it's not bad down in that area. There are definitely certain times to avoid it (like Friday evening) but unless there's an accident or it's rush hour, I usually don't have problems with it.