Connecting Great Falls to Missoula is a straightforward 167.5-mile journey that typically takes about 2 hours and 55 minutes to complete. Because this route stays entirely within the Mountain West region of Montana, you will experience a consistent feel across the state. Budgeting approximately $23 for fuel should cover your needs for the trip. Given the duration, this is easily manageable as a single-day excursion, meaning you won't need to worry about booking an overnight stay unless you prefer a slower pace. It is a practical, direct connection between these two Montana hubs, perfect for travelers looking to move efficiently between cities without a complex itinerary.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
83 miles from Great Falls, MT
A natural place for your longest stop of the day
, about 1h 34m into the drive
.
Main Roads
Road
Distance
Duration
US 89
148.3 mi
2h 47m
First Special Service Force Memorial Highway
9.4 mi
9m
MT 200
4.5 mi
5m
Central Avenue West
1.4 mi
1m
East Broadway Street
0.6 mi
<1m
River Drive South
0.4 mi
<1m
I 15 Business
0.2 mi
<1m
First Avenue North Bridge
0.2 mi
<1m
Longest stretch:
US 89
— 148.3 mi, about 2h 47m
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls, MT and Missoula, MT.
1
Start on 4th Street South
162 ft·9 sec·4th Street South
2
Turn right onto 5th Avenue South
0.2 mi·39 sec·5th Avenue South
3
At end of road, turn right onto 2nd Street South
0.1 mi·24 sec·2nd Street South
4
Turn left onto 3rd Avenue South
0.1 mi·19 sec·3rd Avenue South
5
At end of road, turn right onto River Drive South
0.4 mi·49 sec·River Drive South
6
Turn left onto I 15 Business
0.2 mi·26 sec·First Avenue North Bridge
7
Continue on I 15 Business
1.4 mi·1 min·Central Avenue West
8
Take the exit onto I 15 Business
0.2 mi·32 sec·I 15 Business
9
Merge onto I 15; US 89; MT 200
9.4 mi·9 min·First Special Service Force Memorial Highway
10
Take the exit onto US 89; MT 200
148 mi·2 hr 47 min·US 89; MT 200
Exit 290
11
Keep slight right at fork onto MT 200
4.5 mi·5 min·MT 200
12
Take the exit onto I 90 Business; US 12
0.2 mi·26 sec·I 90 Business; US 12
Toward US 12 West, I 90 Business
13
Enter roundabout onto I 90 Bus; US 12
206 ft·2 sec·Van Buren Street
14
Continue on I 90 Bus; US 12
212 ft·3 sec·Van Buren Street
15
Enter roundabout onto I 90 Bus; US 12
92 ft·1 sec·Van Buren Street
16
Continue on I 90 Bus; US 12
0.1 mi·11 sec·Van Buren Street
17
Turn right onto I 90 Bus; US 12
0.6 mi·55 sec·East Broadway Street
Use the straight / left / right lanes.
18
Turn right onto North Higgins Avenue
19 ft·0 sec·North Higgins Avenue
19
Arrive at destination
North Higgins Avenue
Trip Plan
Since the trip is under three hours, you have plenty of flexibility to depart whenever fits your schedule best. While you only need to plan for one stop, keep an eye on your fuel gauge to ensure you stay within your $23 budget, especially since local roads can sometimes lead to varying fuel consumption. Because this is a turn-heavy route, make sure your GPS is clearly mounted and audible to help you navigate the transitions between 5th Avenue South and the other local roads. Use the short duration to your advantage by planning your single rest stop at a point that breaks up the drive comfortably. Staying focused on the local street signage is the most important tip for ensuring a smooth arrival in Missoula.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 83 miles from Great Falls, MT, or about 1h 34m into the drive.
The longest continuous stretch on this route runs about 148.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 36 miles or 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 83 miles or 1h 34m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 34m
Traffic, exits, and arrival timing usually matter more near Missoula, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Great Falls, MT so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Great Falls, MT
This is one driving day of about 165.9 miles and 3h 9m.
Your first comfortable stop window is around 36 miles from Great Falls, MT.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 89 for about 148.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 13
5 decision points cluster between mile 0 and 165.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|5th Avenue South
Turn right onto 5th Avenue South
Navigation decision point
6
0.2 mi into trip|~0m in|2nd Street South
At end of road, turn right onto 2nd Street South
Complex interchange - multiple decisions in a short stretch
5
0.3 mi into trip|~1m in|3rd Avenue South
Turn left onto 3rd Avenue South
Navigation decision point
5
164.9 mi into trip|~3h 7m in|I 90 Business; US 12
Take the exit onto I 90 Business; US 12 toward US 12 West, I 90 Business
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 12 West, I 90 Business
5
165.1 mi into trip|~3h 8m in|I 90 Bus; US 12 / Van Buren Street
Enter roundabout onto I 90 Bus; US 12 / Van Buren Street
Roundabout - know your exit number before entering
Fuel & Cost
Regular Gas
$26.29 one way
$52.58 round trip
$4.03/gal25.4 MPG avg58 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$27.56
$55.11
premium
$4.53
$29.59
$59.19
diesel
$5.61
$36.63
$73.26
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$26
Meals
$25–$50
Total
$51–$76
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 58 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $17 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
49.8
0
$17.42
$7.96
Efficient EV
41.5
0
$14.52
$6.64
EV Truck/SUV
66.4
0
$23.23
$10.62
Gas CO2
58 kg
EV CO2
19 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Great Falls, MT
Afternoon
in Great Falls on Sunday
Local time
2:21 PM
MDT
Current temp
68°F
Unavailable
Live forecast
Destination
Missoula, MT
Afternoon
in Missoula on Sunday
Local time
2:21 PM
MDT
Current temp
65°F
Unavailable
Live forecast
46°F
Lincoln, MT
83 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 9m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a turn-heavy local drive rather than a high-speed interstate cruise, as this route features 0% highway driving. You will navigate primarily via 5th Avenue South, 2nd Street South, and 3rd Avenue South, which keeps you engaged with the local road network. Because the longest uninterrupted stretch on 5th Avenue South is 0 miles, you should prepare for a drive that requires your full attention at the wheel. The character of the road is defined by its local navigation, providing a different experience than a monotonous highway slog. It is a technical, hands-on journey that demands you stay alert to turns and shifts in the road layout.
92% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 148.3 mi on US 89.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on US 89 and First Special Service Force Memorial Highway. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near 5th Avenue South.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 3h 9m drive. You will face about 13 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (5th Avenue South): Navigation decision point; at 0.2 miles (2nd Street South): Complex interchange - multiple decisions in a short stretch; at 0.3 miles (3rd Avenue South): Navigation decision point.
Great Falls is a city in Central Montana. It is the third most populous city in Montana with approximately 60,000 people. It is the hub for commercial and financial dealings in the center of the state.
The longest stretch is about 148.3 miles on US 89. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
Mostly yes along the main roads, but rural stretches through MT can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (5th Avenue South): Navigation decision point; at 0.2 miles (2nd Street South): Complex interchange - multiple decisions in a short stretch; at 0.3 miles (3rd Avenue South): Navigation decision point.
Possible but tiring. At 3.2 hours each way, an in-and-out day trip would put you behind the wheel for 6.3 hours — manageable with a long break at Missoula, MT, but most travelers stay overnight.
