I don't know the area at all, but prayers for you and your brother.
You might try searching on the internet or if you can't get the info before you leave, usually in most airports they have info on shuttles, that could take you to Kirkland.
I found that Kirkland is about 20 min from Seattle.
Thanks for the prayers and I appreciate any and all help.
I guess living near Atlanta and knowing that our public transportation gets more limited whenever you leave the metro areas, just wanted to make sure that I wouldn't have any problems relying on public transport.
Thats on a very good day!!!