The drive from Seattle to Phoenix takes approximately 22h 0min, covering 1420 miles via I-5. Under normal conditions, expect to spend around $165 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 31–32+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
18h 42m
🔵 Typical
22h 0min
🔴 Heavy traffic
31h 54m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance1420 miles (2285 km)
Drive Time22h 0min
RouteI-5
Best TimeWeekday mid-day
Fuel Costs
Gas (30 mpg)~47.3 gallons
Est. Cost$165
Route Tips: I-5
The main West Coast highway. Heavy traffic near LA, San Francisco, and Seattle. Scenic stretches through Oregon and Northern California.
You'll likely need 3 fuel stops along the way.
Best Time to Drive from Seattle to Phoenix
For a long drive like Seattle to Phoenix, plan to depart early in the morning. This lets you cover most of the distance before afternoon traffic builds up. Consider breaking the trip with a lunch stop midway.
🟢 Best:Weekday mid-day
🔴 Avoid:Rush hour (4-7 PM)
Driving vs Flying
🚗 Driving
22h 0min
~$165 gas
✈️ Flying
5h 20m
~$213–$497 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~2h 50m but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
22h 0min
~$165
🚌 Bus
31h 33m
~$114–$256
🚂 Train
25h 49m
~$170–$426
Estimated times and prices. Bus/train availability varies by route. Driving gives the most flexibility for stops and schedules.
Suggested Stops
Popular cities along the route for rest, food, or fuel:
📍 Reno
📍 Lake Tahoe
📍 Boise
Frequently Asked Questions
How long does it take to drive from Seattle to Phoenix?
The drive from Seattle to Phoenix takes approximately 22h 0min covering 1420 miles via I-5. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for Seattle to Phoenix?
At 30 MPG and $3.50/gallon, expect to spend approximately $165 on gas for this 1420-mile trip. You'll need about 47.3 gallons of fuel.
What is the best time to drive from Seattle to Phoenix?
Weekday mid-day to avoid heavy traffic. Weekday mornings before 7 AM or evenings after 7 PM typically have less congestion.
Are there tolls on the Seattle to Phoenix route?
Yes, expect approximately $42 in tolls along this route. Consider getting a Good To Go! transponder for faster toll payment.
