Not sure what you’re chances on getting on a flight looks like, but I know AA has two flight from MCO to MIA. Same thing for Delta. From the above posts, it would like driving is the best thing to do. I personally lived in Orlando and currently live in Miami. The Miami traffic really isn’t that bad, just time it right going into the airport and you’ll be fine. I’m not a 121 pilot, but have flown out of both airports enough to know their kinks. Feel free to PM me if you have any questions regarding anything other than commuting on a plane.