- From the East or West: Interstate 40
- From the South / Phoenix: Interstate 17
- From the North / Page / Lake Powell / Monument Valley: Highway 89
If you are coming from Phoenix, take I-17 north and follow the numerous “Flagstaff” signs. I-17 terminates in Flagstaff at its junction with I-40 and becomes Milton Road which in turn becomes Route 66 in downtown Flagstaff. This is the main artery through Flagstaff.