How far is Warm Springs, MT from Lewistown, MT?
The driving distance from Warm Springs, MT to Lewistown, MT is about 264 miles (424.9 km), with a travel time of about 04h 16m by car.
- The straight-line flight distance is about 170.5 miles (274.4 km).
- For a round trip, plan for roughly 08h 32m 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 04h 16m.
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 in Cascade County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Warm Springs and Lewistown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Warm Springs and Lewistown.
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1
Start on Gas City Road
156 m · 12 sec · Gas City Road
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2
Take the ramp left
1741 ft · 43 sec
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3
Merge slight left
25 mi · 23 min
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4
Take the exit slight right toward US 12 East: Helena, Garrison
1.2 mi · 2 min
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5
At the end of the road, turn right
42 mi · 47 min
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6
Turn left onto Henderson Street
1.6 km · 2 min · Henderson Street
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7
Turn right onto West Custer Avenue
1.6 mi · 3 min · West Custer Avenue
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8
Continue on East Custer Avenue
2739 ft · 1 min · East Custer Avenue
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9
Turn left onto I 15 North, US 287: Great Falls
1722 ft · 44 sec
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10
Merge slight left onto First Special Service Force Memorial Highway
84 mi · 1 hr 21 min · First Special Service Force Memorial Highway
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11
Take the exit slight right toward I 15 Business, US 89 South, MT 200 East
2016 ft · 49 sec
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12
Continue on Country Club Boulevard
1.4 mi · 2 min · Country Club Boulevard
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13
Continue on 10th Avenue South
6.5 mi · 9 min · 10th Avenue South
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14
Continue straight
17.6 mi · 19 min
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15
Enter the roundabout and take exit 2 toward the route
68 m · 3 sec
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16
Exit the roundabout
1606 ft · 21 sec
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17
Turn straight
64.3 mi · 1 hr 10 min
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18
Continue straight
14.7 mi · 16 min
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19
Continue on US Highway 87
1.5 mi · 2 min · US Highway 87
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20
Continue on West Main Street
1.3 km · 2 min · West Main Street
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21
Turn right onto 6th Avenue South
121 m · 17 sec · 6th Avenue South
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22
Arrive at your destination
0 m · 1 sec · 6th Avenue South
Car Route Details
A richer read on the saved driving route between Warm Springs and Lewistown.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
First Special Service Force Memorial Highway
Merge slight left onto First Special Service Force Memorial Highway
84 mi · 01h 21m
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 Warm Springs and Sunny near Lewistown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Warm Springs to Lewistown?
The road trip is about 264 miles (424.9 km) and usually takes 04h 16m 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?
Cascade is a useful midpoint, sitting about 131.6 miles from Warm Springs and 132.5 miles from Lewistown.
How much longer is the road route than the straight-line distance?
The direct path is about 170.5 miles (274.4 km), while the road route adds roughly 93.5 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 8:28 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.88 one way or $83.77 round trip. Estimated CO2 is about 82.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Warm Springs and Sunny near Lewistown.
Flight Path Map
This map shows the direct air route between Warm Springs and Lewistown. Straight-line distance: 170.5 mi (274.4 km).
#1 Warm Springs
Situated in southwestern Montana's Deer Lodge Valley at an elevation of 4,813 feet, this unincorporated community is part of Deer Lodge County.
| Population | 0 |
| Coordinates | 46.1813100, -112.7847600 |
| Altitude | 1467 |
| Country | United States |
#2 Lewistown
City in Montana, United States
| Population | 5,905 |
| Coordinates | 47.0624700, -109.4282400 |
| Altitude | 1203 |
| Country | United States |
End: 6th Avenue South (-109.428026, 47.06261)
Estimated Travel Time
Distance: 425 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 47m |
| 40 mph (64.37 km/h) | 06h 36m |
| 50 mph (80.47 km/h) | 05h 16m |
| 60 mph (96.56 km/h) | 04h 24m |
| 70 mph (112.65 km/h) | 03h 46m |
| 80 mph (129 km/h) | 03h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.49 | $41.88 | $83.77 |
| Mid-grade | $4.83 | $44.97 | $89.94 |
| Premium | $5.19 | $48.40 | $96.80 |
| Diesel | $6.11 | $56.95 | $113.89 |
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 · Oct 15, 2026