The drive from Portland to Las Vegas takes approximately 16h 22min, covering 982 miles via I-5. Under normal conditions, expect to spend around $114 on gas.
Travel time can vary — during peak hours, weekends, or holidays, the journey may take 22–23+ hours. For the fastest trip, leave early morning (before 7 AM) or travel on weekday evenings.
Traffic Estimate
🟢 Light traffic
13h 55m
🔵 Typical
16h 22min
🔴 Heavy traffic
23h 44m
Traffic is usually worst during weekday rush hours (7–9 AM, 4–7 PM) and holiday weekends.
Trip Details
Distance982 miles (1580 km)
Drive Time16h 22min
RouteI-5
Best TimeWeekday mid-day
Fuel Costs
Gas (30 mpg)~32.7 gallons
Est. Cost$114
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 2 fuel stops along the way.
Best Time to Drive from Portland to Las Vegas
For a long drive like Portland to Las Vegas, 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
16h 22min
~$114 gas
✈️ Flying
4h 28m
~$147–$344 flight
✈️ Flying is faster when you factor in airport time. Flight time is ~1h 58m but add ~2.5 hours for check-in, security, and boarding.
All Travel Options
🚗 Drive
16h 22min
~$114
🚌 Bus
21h 49m
~$79–$177
🚂 Train
17h 51m
~$118–$295
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
📍 Sacramento
Frequently Asked Questions
How long does it take to drive from Portland to Las Vegas?
The drive from Portland to Las Vegas takes approximately 16h 22min covering 982 miles via I-5. Actual time may vary based on traffic, weather, and road conditions.
How much does gas cost for Portland to Las Vegas?
At 30 MPG and $3.50/gallon, expect to spend approximately $114 on gas for this 982-mile trip. You'll need about 32.7 gallons of fuel.
What is the best time to drive from Portland to Las Vegas?
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 Portland to Las Vegas route?
Yes, expect approximately $29 in tolls along this route. Check with the local toll authority for transponder options to speed up toll payment.
