DriveWindow Canada route answer
How long is the drive from Seattle to Portland?
The drive is typically 3 hours and covers 282 km via I-5 through western Washington and Oregon. Allow extra time when persistent rain or standing water affects the corridor.
Route facts
Seattle → Portland
- Distance
- 282 km
- Typical drive
- 3 hours
- Planning baseline
- Midday
- Main weather risks
- persistent rain · standing water · low visibility through heavier showers
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Time and distance
Why the trip can take longer than the baseline
- Distance
- 282 km
- Typical drive
- 3 hours
- Weather-sensitive corridor
- I-5 through western Washington and Oregon
3 hours is a typical estimate for the 282 km drive. It does not include fuel, charging, food, border, park-entry, or weather-related stops.
Allow extra time if the forecast includes persistent rain or standing water; conditions may affect your pace or require stops.
What to check before leaving
Cool-season rain patterns make timing useful even when the route stays at low elevation. Key weather factors: persistent rain, standing water, low visibility through heavier showers.
- persistent rain
- standing water
- low visibility through heavier showers
Route planning answers
Common questions about this drive
Plan the drive
Route weather planning guides
Start with the question that matches your Canadian or cross-border trip, then finish the current check in DriveWindow.
Sources and methodology
How this answer is produced
Website drive time and distance are static planning baselines. In the app, routing-provider travel time can account for traffic and helps time each weather segment; departure options are then compared by weather risk for your date.
US National Weather Service Environment and Climate Change Canada WSDOT Travel CenterOregon TripCheck Route weather methodology Data-source policy
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