The journey from South Riding to Phoenix is approximately 2,000 miles. Flying from Dulles (IAD) to Phoenix Sky Harbor (PHX) is the only practical method, taking about 5 hours. Driving is a massive cross-country trip of over 35 hours.
Total Distance: Driving distance 3,600 km, straight-line air distance 3,100 km.
PHX is very close to downtown; use the light rail for easy access.
Winter and Spring offer the most comfortable temperatures.