Downtown Seattle is about a half hour ride from the airport. We took a taxi and I think it was around $40 + tip. We stayed at the Hyatt Olive 8 for two nights pre-cruise and one night post. An Uber to the cruise terminal was around $15-$20. There are two Hyatt’s right across the street from one another. Both are great and perfect location for exploring, walking distance to the fish market, original Starbucks and other tourist attractions. There is a monorail station nearby that will take you to the space needle, glass museum etc.