Drive Phoenix to Flagstaff Now or Wait?

We compared today's departure windows for Phoenix to Flagstaff (143 miles via I-17) and graded each one for live weather, traffic, and hazards. Pick the safest window in seconds.

Why timing matters on this route

Phoenix to Flagstaff crosses I-17 where I-17 snow at 7,000ft, flash freeze, wind shear are recurring winter hazards. A 2-hour delay on a stormy morning can drop your risk score from danger to caution; a 4-hour delay can shift you from black ice exposure to clear roads.

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