It is long, but the roads are well-maintained.

What is the best stop?

Bozeman is a great city to explore.

No, there is no direct passenger rail service.

Ellensburg

Billings

Driving

Ellensburg to Billings

Updated: 28 May 2026

The journey from Ellensburg to Billings is a long-haul drive of approximately 1,100 km along Interstate 90 East. You will traverse the entire state of Montana, passing through Missoula and Bozeman. The drive takes about 11 to 12 hours of pure driving time. It is a scenic route that showcases the transition from the Cascades to the Great Plains.

Total Distance: Driving distance 1,100 km, straight-line air distance 850 km.

Fastest Way

Driving via I-90.

Cheapest Way

Driving your own vehicle via I-90.

Compare Ellensburg to Billings Routes

Driving

Direct

Duration

11 hours

Avg Price

$150 - $200 (fuel)

Operator

Personal Vehicle

Route

I-90 East through Missoula and Bozeman.

Plan for an overnight stop in Bozeman to break up the drive.

Travel Tips

Route Planning
Stay on I-90 East for the entire duration.
Overnight Stop
Bozeman is an ideal place to stay overnight if you want to split the drive.
Fuel
Keep your tank at least half full as gas stations can be sparse in rural Montana.
Weather
Check for high winds on the plains, which can affect vehicle handling.
Snacks
Pack plenty of water and snacks for the long stretches between towns.

Safety Tips

Fatigue
Take regular breaks every 2 hours to stay alert.
Wildlife
Be extremely cautious of deer and elk on the highway at night.
Emergency Kit
Carry a winter emergency kit even in summer, including extra water and blankets.
Speed
Observe speed limits, as Montana state troopers are active on I-90.