Idaho Falls, Idaho to Jackson Hole
just over 90 miles or just under 2 hours

There are 2 ways to get from Idaho Falls to Jackson Hole. The first and most used goes over Teton Pass. The second goes through Alpine and up the Snake River Canyon.

Route #1:
Over Teton Pass
Take US 26 East to Swan Valley
In Swan Valley, turn left on ID 31
Follow ID-31 to Victor, ID.
In Victor, turn right (East) on ID-33.
Follow ID-33 over Teton Pass where it Becomes WY-22
Follow WY-22 to US 89/Broadway.
Note:If you're going to Teton Village, turn at WY-390/ Moose-Wilson Rd. before reaching US-89/Broadway.

Route #2:
Via the Snake River Canyon. This route is longer, but quite a bit flatter, too. Recommended for those with trailers or during severe winter weather.
Take US 26 East to Swan Valley
Continue on US-26 to Alpine
At Alpine, WY turn left at US-89
US 89 becomes US 191/US-89 at Hoback Junction.
Continue North to Jackson
Note: if you're going to Teton Village, take a left at WY-22 just after Albertsons then, turn right at the Moose-Wilson Rd./ WY 390.