PreFlight Airport Parking in Phoenix is easy to get to and close to the Sky Harbor Airport. You can reserve your spot online for either the covered parking rate or the uncovered. With the unrelenting sunshine and heat (summers in particular) in Phoenix, covered is a good choice and worth the extra bucks. Caution, when you pay in advance online make sure you keep the receipt safe (I always leave mine on the car seat or glovebox). If you forget to submit this receipt upon returning from your trip, you will be charged a second time. This happened to me twice, however PreFlight was good about refunding the overcharge to my credit card when I called them. The note on the receipt that advises you to turn it in upon your return is in very small type at the top of the printout. I think PreFlight should greatly enlarge the type font on that reminder. Also, If you get a late return flight, you can call PreFlight to have a shuttle bus sent to the airport.