On July 25th I'm flying into Seattle to hike the Wonderland trail; I'll start and end at Longmire. I'm having a hard time locating a shuttle or bus line that would serve Longmire. Anyone in the area know how to get to the trail-head from the airport?

I'm searched on Google extensively with zero hits. Being a popular hike, I'm assuming I'm missing something.

Renting a car would be the last resort. I'm not really thrilled with the idea of having to pay rental fees for a car to sit for a week.