Halfway point between Salt Lake City and West Yellowstone
On the I-15 and US-20 drive, the natural place to split the trip is Idaho Falls, ID. It is about 214 miles from Salt Lake City, UT and 106 miles from West Yellowstone, MT.
- Whole drive
- About 320 miles, 5 h
- To Idaho Falls
- About 3 h from Salt Lake City
- Highway
- I-15 and US-20
Total trip cost
Gas uses today's regional averages along this route. Add the nightly rate you find to see the full total.
- Gas, about 320 miles
- Checking prices
- Lodging, 1 night
- Add a rate
- Estimated total
- -
Why Idaho Falls
It sits right on I-15 and US-20 near the middle of the drive, so neither day is much longer than the other, and it has plenty of hotels by the exits. Meeting someone coming the other way? It also works as a fair meetup spot.
Along the way
- Old Faithful
- Grand Prismatic Spring
- Mesa Falls Scenic Byway
- Salt Lake City to near Yellowstone National Park road trip planner
- Where to stay in Idaho Falls, ID
- Best places to stop on the way
- Can you drive it in one day?
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