Arriving in Phoenix at 12:30 PM on a Saturday in mid October and need to get to Flagstaff to meet our Grand Canyon hiking group. I thought I would take the Arizona shuttle but the timing of when we get in and when the shuttles leave means that we don't get to Flagstaff until 6:20 PM. (We can't make the 1 PM shuttle and there is no 2 PM shuttle so we are on the 3 PM shuttle.) So now I am thinking of renting a car but wondered how difficult it is to drive out of the airport. Is there alot of traffic and is it confusing to find the correct direction? I am not a great driver especially when I don't know where I am going. Are there any other car services or taxi services to Flagstaff. My internet search came up with one called Executive but they didn't seem to have Flagstaff service. Thanks for any advice.