I have a 2.57 pm flight from Phoenix to Los Angeles on Saturday April 25. I plan on taking the 10.00 am shuttle (Flagstaff Express) which is scheduled to get to Phoenix Sky Harbor at 12.55 pm. United Airlines recommend check-in by 1.30 pm if you have bags to check, so I think this shuttle will be okay, but was wondering if anyone has personal experience whether the shuttles tend to run to time? Also, do you know if any of the taxi services in Flagstaff can be pre-booked for a pick-up that morning from my vacation rental to the Flagstaff train station? I can't afford to miss that flight.