How far is Plains, MT from Lockwood, MT?
The driving distance from Plains, MT to Lockwood, MT is about 425.1 miles (684.1 km), with a travel time of about 06h 25m by car.
- The straight-line flight distance is about 327 miles (526.2 km).
- For a round trip, plan for roughly 12h 50m 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 06h 25m.
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.
Town in Jefferson County, Montana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely then Showers And Thunderstorms
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Plains and Lockwood.
Turn-by-Turn Driving Directions
Step-by-step road directions between Plains and Lockwood.
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1
Start on Railroad Avenue
1.3 km · 1 min · Railroad Avenue
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2
Continue on Montana Highway 200
31.5 mi · 47 min · Montana Highway 200
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3
Continue on A Street
7.5 mi · 11 min · A Street
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4
Continue straight
27.3 mi · 32 min
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5
Continue on West Broadway Street
925 ft · 24 sec · West Broadway Street
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6
Continue on West Broadway Street
733 ft · 18 sec · West Broadway Street
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7
Take the exit slight right toward I 90 East: Missoula
124.6 mi · 2 hr
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8
Keep slight right
110.8 mi · 1 hr 51 min
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9
Continue straight
6.9 mi · 6 min
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10
Continue straight
113 mi · 1 hr 53 min
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11
Continue straight
1.8 mi · 2 min
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12
Take the exit slight right toward Johnson Lane
1505 ft · 40 sec
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13
Turn left onto Johnson Lane
1900 ft · 46 sec · Johnson Lane
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14
Arrive at your destination
0 m · 1 sec · Johnson Lane
Car Route Details
A richer read on the saved driving route between Plains and Lockwood.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 East
Take the exit slight right toward I 90 East: Missoula
125 mi · 02h 00m
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.
Light Rain Likely then Showers And Thunderstorms leaving Plains and Mostly Sunny then Chance Showers And Thunderstorms near Lockwood.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Plains to Lockwood?
The road trip is about 425.1 miles (684.1 km) and usually takes 06h 25m 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?
Whitehall is a useful midpoint, sitting about 212.2 miles from Plains and 212.9 miles from Lockwood.
How much longer is the road route than the straight-line distance?
The direct path is about 327 miles (526.2 km), while the road route adds roughly 98.1 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 $58.39 one way or $116.79 round trip. Estimated CO2 is about 133.3 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely then Showers And Thunderstorms around Plains and Mostly Sunny then Chance Showers And Thunderstorms near Lockwood.
Stop Ideas Near Whitehall
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 Whitehall.
Butte, MT
Bozeman, MT
Flight Path Map
This map shows the direct air route between Plains and Lockwood. Straight-line distance: 326.99 mi (526.24 km).
#1 Plains
Town of the United States
| Population | 1,139 |
| Coordinates | 47.4602100, -114.8829100 |
| Altitude | 755 |
| Country | United States |
#2 Lockwood
Human settlement in Yellowstone County, Montana, United States of America
| Population | 6,797 |
| Coordinates | 45.8191200, -108.4148600 |
| Altitude | 943 |
| Country | United States |
End: Johnson Lane (-108.41395, 45.819127)
Estimated Travel Time
Distance: 684 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 14h 09m |
| 40 mph (64.37 km/h) | 10h 37m |
| 50 mph (80.47 km/h) | 08h 30m |
| 60 mph (96.56 km/h) | 07h 05m |
| 70 mph (112.65 km/h) | 06h 04m |
| 80 mph (129 km/h) | 05h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $58.39 | $116.79 |
| Mid-grade | $4.23 | $63.46 | $126.93 |
| Premium | $4.55 | $68.24 | $136.47 |
| Diesel | $5.41 | $81.18 | $162.36 |
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.