Hello Alaska cruisers (probably not many left)... It just occurred to me to pass this tip on. Taxis and towncars were expensive. We happened upon a flat rate cab (Olympic for Hire) waiting at our hotel (Intercontinental Seattle). It was $9 to get to the port, and $30 flat to get back. Cheaper than Eastside for Hire and the taxi companies. We had set up Uber towncars but abandoned that expensive idea once we paid $9 (so cheap that we ended up paying him $15 anyway). Hope this helps someone!