Flagstaff to Twin Falls: Road Trip Guide & Distance

How far is Flagstaff from Twin Falls?

The distance from Flagstaff to Twin Falls is 530.7 miles (854.1 km) as the crow flies. Twin Falls is located NNW of Flagstaff. By car, the driving distance is approximately 636.8 miles, taking about 12h 49min. A direct flight would take roughly 1h 34min. Both are located in United States — Flagstaff in Arizona and Twin Falls in Idaho.

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.

Coordinates come from public place data for Flagstaff and Twin Falls. 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.