re: Car Rental Cancellation Question

You are going to want to read the fine print, my guess is worst case you will be charged for one night but mostly likely its free cancellation up to a certain point. You may consider renting it 5-6 hours later, and then you can cancel without any issues. If you still need it, often times you can just check in early to get the car.

You can almost always return a rental car early and get any nights you want back.

Pro tip, you will often get priority for a longer rental. Rent a car for a week and you can often find one if inventory is low for a 2-3 day rental. Return the car early, get a refund, profit.