How far is Miles City, MT from Thompson Falls, MT?
The driving distance from Miles City, MT to Thompson Falls, MT is about 588.9 miles (947.7 km), with a travel time of about 10h 26m by car.
- The straight-line flight distance is about 454.7 miles (731.7 km).
- For a round trip, plan for roughly 20h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 10h 26m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
City in Gallatin County, Montana, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Rain Likely then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Miles City and Thompson Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Miles City and Thompson Falls.
-
1
Start on Main Street
1.1 mi · 2 min · Main Street
-
2
Continue straight
1.9 mi · 3 min
-
3
Take the ramp straight
20 m · 2 sec
-
4
Keep slight right
1487 ft · 36 sec
-
5
Merge slight left
135.4 mi · 2 hr 19 min
-
6
Merge slight left
2.8 mi · 3 min
-
7
Continue straight
112.8 mi · 1 hr 52 min
-
8
Continue straight
7 mi · 7 min
-
9
Continue straight
113.4 mi · 1 hr 54 min
-
10
Keep slight left to continue on I 90 West: Missoula
121.8 mi · 1 hr 57 min
-
11
Take the exit slight right toward US 93 North, MT 200 West: Kalispell
1009 ft · 25 sec
-
12
Keep slight right to continue on US 93 North, MT 200 West: Kalispell
27.2 mi · 32 min
-
13
Turn left
64.7 mi · 1 hr 36 min
-
14
Turn right
154 m · 22 sec
-
15
Keep slight right
40 m · 6 sec
-
16
Turn right onto East Preston Avenue
130 m · 23 sec · East Preston Avenue
-
17
Turn left onto Woodland Street
143 m · 21 sec · Woodland Street
-
18
Arrive at your destination
0 m · 1 sec · Woodland Street
Car Route Details
A richer read on the saved driving route between Miles City and Thompson Falls.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Main Street
Merge slight left
135 mi · 02h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Miles City and Rain Likely then Showers And Thunderstorms near Thompson Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Miles City to Thompson Falls?
The road trip is about 588.9 miles (947.7 km) and usually takes 10h 26m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Belgrade is a useful midpoint, sitting about 293.8 miles from Miles City and 295 miles from Thompson Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 454.7 miles (731.7 km), while the road route adds roughly 134.2 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $80.90 one way or $161.79 round trip. Estimated CO2 is about 184.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Miles City and Rain Likely then Showers And Thunderstorms near Thompson Falls.
Stop Ideas Near Belgrade
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 Belgrade.
Bozeman, MT
Livingston, MT
Butte, MT
Flight Path Map
This map shows the direct air route between Miles City and Thompson Falls. Straight-line distance: 454.68 mi (731.73 km).
#1 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| 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: 948 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 19h 37m |
| 40 mph (64.37 km/h) | 14h 43m |
| 50 mph (80.47 km/h) | 11h 46m |
| 60 mph (96.56 km/h) | 09h 48m |
| 70 mph (112.65 km/h) | 08h 24m |
| 80 mph (129 km/h) | 07h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $80.90 | $161.79 |
| Mid-grade | $4.23 | $87.92 | $175.84 |
| Premium | $4.55 | $94.53 | $189.06 |
| Diesel | $5.41 | $112.46 | $224.92 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.