How much does it cost for hourly limo rental in Phoenix, AZ?

It depends on the vehicle hired and the total number of hours of the rental. This site lets you search the various limo services in your area: http://www.limos.com/geo/United-States/AZ/Phoenix

An hourly limo rental in Phoenix, AZ will vary on the type of vehicle rented. A stretch SUV limo will cost $92 an hour for up to 6 passengers. A stretch car limo will vary in prices from $80 to $90 per hour.