Hello Andy,
Thanks for stopping by
planDisney with your question! A pushed back flight, on your departure day? That sounds like the best flight change ever. It gives you more time to soak in the magic before heading back to reality. Lucky you!
You can absolutely play in the parks for another day, or even just spend the day shopping, dining, and enjoying
Disney Springs. I know on our vacations, we sometimes don't get to spend as much time as we would like in Disney Springs because we want to spend as much time as possible in the parks. Whatever you choose to do, you can leave your luggage at Bell Services before you head out. They'll store it for you while you head off for a day of fun, and you can pick it up before you catch your bus back to the airport.
You'll want to give yourself about 90 - 120 minutes (depending on where you are spending your day) to make sure you have plenty of time to return to
Disney's Port Orleans Resort - Riverside and collect your luggage before your ride to the airport. It most likely won't take that long, but you don't want to feel rushed on that last magical day.
Hope this helps. Have a magical vacation!
Diane