Duncan, Oklahoma to San Tan Valley: Road Trip Guide & Distance

How far is Duncan, Oklahoma from San Tan Valley?

The distance from Duncan, Oklahoma to San Tan Valley is 783.4 miles (1260.7 km) as the crow flies. San Tan Valley is located W of Duncan, Oklahoma. By car, the driving distance is approximately 940 miles, taking about 18h 55min. A direct flight would take roughly 2h 5min. Both are located in United States — Duncan, Oklahoma in Oklahoma and San Tan Valley in Arizona.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Duncan, Oklahoma and San Tan Valley. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.