I’ve already talked about checking the status of your flight before you leave for the airport. Let’s say it’s delayed by a significant amount of time.
If you are picking up a rental car when you land at your final destination, you might want to notify the car rental of your new arrival time. The same goes for heading home. If your flight is delayed and you are returning the rental car, you might want to notify them of that as well. You should check to see if you will be charged for an extra day’s rental. That might change your decision on when to return it.
Don’t forget about your hotel or vacation rental if your flight is delayed significantly. There might be a check in or check out time that you need to pay attention to.