Flying to Seattle to go on Alaska cruise. To get to ship, airport shuttle and taxi is out of the question. Heard to use UBER but never have, there will be 4 of us. Is the rate per person or per car load? If per car load $38 is a lot better than cruise/airport shuttle of $54 round trip per person. Thanks

Anytime I have used Uber the price was per car load.

If you arrive at a real busy time the Uber premium rates can eat you up.
Lyft has premium rates too but not near as bad as Uber does.