No, there is no passenger rail service.

How long is the drive?

The drive takes about 4 hours and 15 minutes.

No, there are no tolls on this route.

What is the best route?

I-15 to I-84 is the direct route.

Is Boise the capital?

Yes, Boise is the capital of Idaho.

Idaho Falls

Boise

Flight Driving

Idaho Falls to Boise

Updated: 31 May 2026

The journey from Idaho Falls to Boise covers 280 miles and takes approximately 4 hours and 15 minutes by car. You will travel south on I-15 before merging onto I-84 West. This is the primary corridor connecting eastern and western Idaho. Alternatively, you can take a direct flight from Idaho Falls Regional Airport (IDA) to Boise Airport (BOI), which takes about 1 hour. The drive offers scenic views of the Snake River Plain.

Total Distance: 450 km driving distance; 350 km straight-line air distance.

Fastest Way

Flying from IDA to BOI is the fastest method, taking 1 hour.

Cheapest Way

Driving your own vehicle is the most economical option, costing about 50 dollars in fuel.

Compare Idaho Falls to Boise Routes

	Flight Direct	Driving Direct
Duration	1 hour	4 hours 15 minutes
Avg Price	150-300 USD	40-60 USD
Operator	Alaska Airlines	Personal Vehicle
Route	IDA to BOI.	I-15 South to I-84 West.
Tip	Book in advance for the best fares.	I-84 can have high winds; keep both hands on the wheel.

Travel Tips

Traffic
Expect heavy traffic in Boise during rush hour.
Navigation
I-84 is well-marked, but stay alert for highway splits.
Dining
Twin Falls is a great place to stop for lunch on the way.
Parking
Boise has plenty of parking in the downtown area.
Road Conditions
Check for construction on I-84 before you leave.

Safety Tips

Speeding
Police monitor speeds on I-84 near small towns.
Weather
Winter driving on I-84 can be dangerous; check conditions.
Visibility
Keep your headlights on during the day for safety.
Emergency
Keep a basic emergency kit in your car.