We are flying into SLC from NY 9/8. We arrive about 11 am. Plan to drive to West Yellowstone and stay outside the park for one night for free with points. Then stay 3 nights at Canyons in Yellowstone. Was planning to drive back to SLC on 9/12 stay over night to get a 4 pm flight home 9/13. A coworker said it is a big mistake if I do not stop in Jackson. Wondering now if we should only stay in Canyons 2 nights and go to Jackson for one night and possibly see GTNP. Does anyone have an opinion between the two options. We do not plan to be back in the area anytime soon.