Yes, there are shuttles back and forth to airport and rental place.
We've also got our car at the SeaTac facility, stayed 2 weeks with family, dropped it off in Ballard and caught a Lyft to the cruise terminal. Returned from the cruise got an enterprise bus to downtown seattle to get another car for a few days. Then dropped it off at SeaTac facility to catch our ✈ back to the east coast. Very easy just required some planning.
Yes.
Yes.. we drove from LA and returned at Seattle airport.
Yes, just be mindful that it could take you around 30 mins to return the car and shuttle to the terminals.
Yes. All of the rental car companies are off site. When you get your bags in baggage claim, go outside and there are rental car buses that will drive you for free to the rental car facility. When you return your car, you catch the bus at the facility and they return you to the baggage claim area. You will then need to walk to your departure gate.
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