The drive from Seattle to Denver takes approximately 21h 0min, covering 1315 miles via I-5. Under normal conditions, expect to spend around $153 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 29–30+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
17h 51m
🔵 Typical
21h 0min
🔴 Heavy traffic
30h 27m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance1315 miles (2116 km)
Drive Time21h 0min
RouteI-5
Best TimeLate evening (8-10 PM)
Fuel Costs
Gas (30 mpg)~43.8 gallons
Est. Cost$153
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 Denver
For a long drive like Seattle to Denver, 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:Late evening (8-10 PM)
🔴 Avoid:Rush hour (4-7 PM)
Driving vs Flying
🚗 Driving
21h 0min
~$153 gas
✈️ Flying
5h 8m
~$197–$460 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~2h 38m but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
21h 0min
~$153
🚌 Bus
29h 13m
~$105–$237
🚂 Train
23h 55m
~$158–$394
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:
📍 Sun Valley
📍 Boise
📍 Jackson Hole
Frequently Asked Questions
How long does it take to drive from Seattle to Denver?
The drive from Seattle to Denver takes approximately 21h 0min covering 1315 miles via I-5. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for Seattle to Denver?
At 30 MPG and $3.50/gallon, expect to spend approximately $153 on gas for this 1315-mile trip. You'll need about 43.8 gallons of fuel.
What is the best time to drive from Seattle to Denver?
Late evening (8-10 PM) 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 Denver route?
Yes, expect approximately $39 in tolls along this route. Consider getting a ExpressToll transponder for faster toll payment.
