Distance from Helena, MT to Spokane, WA is 310Miles or 500 Km. You can get this distance about 4 hours 47 mins. If you want to planning travel with plane for 265 Miles or 427 Km, You can get this distance about 1 hours 4 mins .
A car with an average MPG will needs 14.35 gallons of gas to get the route between these points.
The estimated cost of gas to get between Helena, MT and Spokane, WA is $32.57.
During the route, an average car will release 281.15 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.