Osoyoos to Coeur d'alene via Orville US Border crossing
 

best route from Osoyoos to CDA, through Spokane, Wa.

Is this vital information that you are passing on to a grateful audience or are you asking whether this is the best route?

I'm sure this is the route that my GPS receiver would recommend.

My apologies...it is a question...Does anyone know the fastest way from Osoyoos, BC to CDA, Idaho?

Go on this site www.ama.ab.ca, click on TRAVEL in far top right hand corner, then click on MAPS AND GUIDES then TRIPTIK. Enter your travel info and this program will give you a trip plan including the time it will take. You can manipulate the route if you want to travel less popular roads.
And you can print out the map to take with you. We've used this alot in planning our road trips.