Driving
Butte to Idaho Falls
Updated: 31 May 2026
The drive from Butte to Idaho Falls is a 340-kilometer journey south along Interstate 15. You will cross the Continental Divide and travel through the scenic landscapes of Southwest Montana and Eastern Idaho. The drive takes approximately 3.5 hours. Idaho Falls is a gateway to Yellowstone National Park and the Grand Tetons.
Total Distance: 340 km driving, 290 km air distance.
Fastest Way
Driving your own vehicle.
Cheapest Way
Driving your own vehicle is the only practical way.
Compare Butte to Idaho Falls Routes
Driving
Direct
Duration
3 hours 30 mins
Avg Price
$45 - $65 in fuel
Operator
Personal Vehicle
Route
I-15 S.
The drive is straightforward; just follow the signs for Idaho Falls.
Travel Tips
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Stop in DillonA great place to stop for a break on the way.
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TrafficTraffic is generally light on this route.
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ParkingParking is easy to find in Idaho Falls.
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WeatherIdaho Falls can be very cold in winter; be prepared.
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NavigationI-15 is the only road you need to follow.
Safety Tips
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SpeedingWatch your speed on the open highway.
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WildlifeBe alert for deer and other wildlife on the road.
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EmergencyCell service is good along the entire I-15 corridor.
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WinterThe road can be icy in winter; drive with caution.
People Also Ask
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How long is the drive?About 3.5 hours.
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Is there a bus?No, there is no regular bus service between these two cities.
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What is the distance?340 kilometers.
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Are there trains?No, passenger rail service is not available.
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Is it a safe drive?Yes, I-15 is a major, well-maintained interstate.
Quick Info
- From Butte, Montana, United States
- To Idaho Falls, Idaho, United States
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Modes
Best Time to Travel
Summer for national park access or autumn for the scenery.
Things to Do in Idaho Falls
1
Idaho Falls Greenbelt
A beautiful park along the Snake River in the heart of the city.
2
Museum of Idaho
A great museum showcasing the history and science of the region.
3
Tautphaus Park Zoo
A fun zoo for families located in Idaho Falls.
4
Snake River Falls
The iconic waterfalls that give the city its name.
Tags
Butte to Idaho Falls
drive Butte to Idaho Falls
I-15 Idaho
Idaho Falls travel
Montana to Idaho road trip
Butte to Idaho Falls distance
traveling in the Rockies
Butte to Idaho Falls bus
