How far is Great Falls, MT from East Missoula, MT?
The driving distance from Great Falls, MT to East Missoula, MT is about 163.9 miles (263.8 km), with a travel time of about 03h 07m by car.
- The straight-line flight distance is about 131.5 miles (211.7 km).
- For a round trip, plan for roughly 06h 14m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 07m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Great Falls and East Missoula.
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls and East Missoula.
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1
Start on 4th Street South
49 m · 9 sec · 4th Street South
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2
Turn right onto 5th Avenue South
862 ft · 40 sec · 5th Avenue South
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3
At the end of the road, turn right onto 2nd Street South
686 ft · 24 sec · 2nd Street South
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4
Turn left onto 3rd Avenue South
683 ft · 20 sec · 3rd Avenue South
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5
At the end of the road, turn right onto River Drive South
2365 ft · 49 sec · River Drive South
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6
Turn left onto First Avenue North Bridge
1148 ft · 27 sec · First Avenue North Bridge
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7
Continue on Central Avenue West
1.4 mi · 2 min · Central Avenue West
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8
Take the exit right
1311 ft · 32 sec
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9
Merge slight left onto First Special Service Force Memorial Highway
9.4 mi · 9 min · First Special Service Force Memorial Highway
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10
Take the exit slight right
148.3 mi · 2 hr 48 min
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11
Keep slight right
2.8 mi · 4 min
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12
Take the exit slight right toward East Missoula
992 ft · 24 sec
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13
Turn sharp right onto Old Montana 200
1973 ft · 44 sec · Old Montana 200
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14
Turn right onto Randles Street
572 ft · 25 sec · Randles Street
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15
Arrive at your destination
0 m · 1 sec · Randles Street
Car Route Details
A richer read on the saved driving route between Great Falls and East Missoula.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
First Special Service Force Memorial Highway
Take the exit slight right
148 mi · 02h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Great Falls and Sunny near East Missoula.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Great Falls to East Missoula?
The road trip is about 163.9 miles (263.8 km) and usually takes 03h 07m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Dutton is a useful midpoint, sitting about 81.8 miles from Great Falls and 82.1 miles from East Missoula.
How much longer is the road route than the straight-line distance?
The direct path is about 131.5 miles (211.7 km), while the road route adds roughly 32.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:46 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.54 one way or $45.08 round trip. Estimated CO2 is about 51.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Great Falls and Sunny near East Missoula.
Stop Ideas Near Dutton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Dutton.
Butte, MT
Missoula, MT
Flight Path Map
This map shows the direct air route between Great Falls and East Missoula. Straight-line distance: 131.53 mi (211.68 km).
#1 Great Falls
Town in Cascade County, Montana, United States
| Population | 58,353 |
| Coordinates | 47.5002400, -111.3008100 |
| Altitude | 1015 |
| Country | United States |
#2 East Missoula
Census designated place
| Population | 2,157 |
| Coordinates | 46.8707600, -113.9445500 |
| Altitude | 995 |
| Country | United States |
End: East Missoula (-113.94455, 46.87076)
Estimated Travel Time
Distance: 264 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 27m |
| 40 mph (64.37 km/h) | 04h 05m |
| 50 mph (80.47 km/h) | 03h 16m |
| 60 mph (96.56 km/h) | 02h 43m |
| 70 mph (112.65 km/h) | 02h 20m |
| 80 mph (129 km/h) | 02h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $22.54 | $45.08 |
| Mid-grade | $4.23 | $24.50 | $48.99 |
| Premium | $4.55 | $26.34 | $52.68 |
| Diesel | $5.41 | $31.34 | $62.67 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Montana · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.