We are flying to Seattle before cruise finding out that most hotels do not offer shuttle service we will take taxi one way $35.00-$40.00 or take limo for about $50.00-$60.00 hour there are four of us thats $10.00-$15.00 each There is a airport shuttle bus for about $8.50 per person but told they do not stop at every hotel some drop off blocks from some hotels. I am on vacation first cab at airport I get is mine, enjoy.
We used the Shuttle Express for trans. from the airport to downtown. It stops at MOST major hotels and will be the cheapest way. The driver will work with you as to drop off. (within reason) We had a lady who rode with us going to a hotel that was not a regular stop and he let her off at her door. For the 3 of us it cost 7.00 pp. Plus the driver carries the bags for you. Tip accordingly. ;-) http://www.seatac.org/seatac/transport/shuttlebus.htm
Someone else just posted this information under Cheap Eats and Sleeps in Seattle (just a couple of posts after yours. Note that they mention Grayline coming to the Piers!
"I took Gray Line's Airport Express shuttle bus, which is $8.50 one-way or $14 r.t., runs every half-hour, and stops at eight or so of the downtown hotels. I took it to the last one before it heads back to the airport, the Warwick Hotel (I wasn't actually staying there, but it was walking distance to where I was staying.) On the way home, the Gray Line buses come right to the piers, so you can take advantage of the round trip fare. They have a web site, and can also be reached at 206-626-6088, or 800-426-7532 for recorded schedule info."