Distance from Portland, OR to Seattle, WA is 173Miles or 278 Km. You can get this distance about 2 hours 44 mins. If you want to planning travel with plane for 146 Miles or 234 Km, You can get this distance about 48 mins .
A car with an average MPG will needs 8.01 gallons of gas to get the route between these points.
The estimated cost of gas to get between Portland, OR and Seattle, WA is $18.18.
During the route, an average car will release 156.93 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.
* Average US MPG used for calculations is 21.6 MPG.
* Average US gas price used for calculation is 2.27 per gallon.