How far is Great Falls, MT from Thompson Falls, MT?
The driving distance from Great Falls, MT to Thompson Falls, MT is about 266.6 miles (429 km), with a travel time of about 05h 27m by car.
- The straight-line flight distance is about 188.4 miles (303.2 km).
- For a round trip, plan for roughly 10h 54m 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 05h 27m.
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.
Census designated place in Montana, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Great Falls and Thompson Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls and Thompson Falls.
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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
13.8 mi · 16 min
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12
Take the exit slight right toward US 93 North, MT 200 West: Kalispell
1009 ft · 25 sec
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13
Keep slight right to continue on US 93 North, MT 200 West: Kalispell
27.2 mi · 32 min
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14
Turn left
64.7 mi · 1 hr 36 min
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15
Turn right
154 m · 22 sec
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16
Keep slight right
40 m · 6 sec
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17
Turn right onto East Preston Avenue
130 m · 23 sec · East Preston Avenue
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18
Turn left onto Woodland Street
143 m · 21 sec · Woodland Street
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19
Arrive at your destination
0 m · 1 sec · Woodland Street
Car Route Details
A richer read on the saved driving route between Great Falls and Thompson Falls.
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.
Mostly Sunny leaving Great Falls and Mostly Sunny near Thompson Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Great Falls to Thompson Falls?
The road trip is about 266.6 miles (429 km) and usually takes 05h 27m 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?
Seeley Lake is a useful midpoint, sitting about 133 miles from Great Falls and 133.5 miles from Thompson Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 188.4 miles (303.2 km), while the road route adds roughly 78.2 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 6:06 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.63 one way or $73.27 round trip. Estimated CO2 is about 83.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Great Falls and Mostly Sunny near Thompson Falls.
Stop Ideas Near Seeley Lake
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 Seeley Lake.
Missoula, MT
Flight Path Map
This map shows the direct air route between Great Falls and Thompson Falls. Straight-line distance: 188.39 mi (303.18 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 Thompson Falls
Town in Montana, United States
| Population | 1,432 |
| Coordinates | 47.5948900, -115.3383400 |
| Altitude | 779 |
| Country | United States |
End: Thompson Falls (-115.33834, 47.59489)
Estimated Travel Time
Distance: 429 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 52m |
| 40 mph (64.37 km/h) | 06h 39m |
| 50 mph (80.47 km/h) | 05h 19m |
| 60 mph (96.56 km/h) | 04h 26m |
| 70 mph (112.65 km/h) | 03h 48m |
| 80 mph (129 km/h) | 03h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $36.63 | $73.27 |
| Mid-grade | $4.23 | $39.81 | $79.63 |
| Premium | $4.55 | $42.81 | $85.61 |
| Diesel | $5.41 | $50.93 | $101.85 |
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 · May 14, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.