Looks like you have this one covered but if anything changes I will be going through Spokane Sunday. I would be happy to pick up the Dog and I Could fly down to drop him off early next week. Monday or Tuesday. (as long as It would be ok for him to stay with me for a couple days)
I fly from Seattle to North Idaho regularly. I try to look on here often but if you have a regular need to transport from Eastern Washington to Western Washington or Oregon for that matter you can call or email anytime.