Seattle to yellowstone

[MuppetOnTour]

hello

This is a rescheduled trip as was postponed due to that dreaded word. So we want to do yellowstone and mount st helens. The other main bit i want is craters of the moon. We will have probably 16 days including travel. Now Seattle is cheap for us to fly into and back. Jackson hole, salt lake is ridiculous. Flying between seattle and jackson is also ok.

So one thought is fly seattle , stay a night as i dont like to drive after long flight especially as on other side of the road. then fly to Jackson. Do grand teton , yellowstone then through craters of moon but then i assume that means im taking south road to porrtland really to get to rainer , mount st helens and then may olympia then fly back.

I that the best road trip option or is it better to treat as 2 road trips nad fly in between so road trip 1 is teton,yellowstone,craters. road trip 2 mount st helens, mount rainer and Olympia.

We are planning first 2 weeks september and not sure if hiring a van or a car. ie camping or hotels. i assume if hotels etc then for these location they would need booked in advance.