Driving
Billings to Boise
Updated: 28 May 2026
The drive from Billings to Boise is approximately 600 miles. You will travel west on I-90 and south on I-84 through the mountains of Montana and Idaho. The journey takes about 9 to 10 hours. You will pass through the scenic landscapes of the Northern Rockies. This route is a popular path for those traveling between Montana and Idaho.
Total Distance: 950 km driving, 750 km air.
Fastest Way
Driving is the fastest, taking 9 hours.
Cheapest Way
Driving is the only practical way to make this trip.
Compare Billings to Boise Routes
Driving
Direct
Duration
9 hours
Avg Price
$90-$130
Operator
Personal Vehicle
Route
I-90 to I-84 West
Watch for mountain weather conditions.
Travel Tips
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WildlifeBe alert for deer and elk crossing the road.
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FuelFill up in major towns to avoid running low on remote stretches.
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Winter DrivingCarry emergency supplies in your car during winter.
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NavigationDownload offline maps as cell service is spotty.
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BookingBook hotels in advance during peak summer season.
Safety Tips
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Road ConditionsCheck ITD for road closures before departing.
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EmergencyKeep a winter emergency kit in your vehicle.
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FatigueTake breaks every 2 hours to stay alert.
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SpeedObserve speed limits, especially on winding mountain roads.
People Also Ask
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Is there a flight?No direct flights exist between Billings and Boise.
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How long is the drive?Approximately 9 hours.
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Is I-84 safe?Yes, but watch for mountain weather.
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Can I take a bus?Bus options are limited and very slow.
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What is the best time to drive?Daylight hours during summer.
Quick Info
- From Billings, Montana, United States
- To Boise, Idaho, United States
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Modes
Best Time to Travel
Summer and early autumn for the best weather.
Things to Do in Boise
1
Idaho State Capitol
Historic capitol building with beautiful grounds.
2
Boise River Greenbelt
Scenic trail along the Boise River.
3
Basque Museum and Cultural Center
Unique museum dedicated to Basque culture.
4
Boise Art Museum
Art museum with a diverse collection.
Tags
Billings to Boise
drive to Boise
I-90 and I-84 route
Montana to Idaho
travel from Billings
best way to Boise
road trip Billings to Idaho
