How far is Plains, MT from Billings, MT?
The driving distance from Plains, MT to Billings, MT is about 419.2 miles (674.7 km), with a travel time of about 06h 30m by car.
- The straight-line flight distance is about 324.2 miles (521.7 km).
- For a round trip, plan for roughly 13h 00m 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 30m.
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.
Chance Light Rain
Rain And Snow Showers Likely
Driving Route Map
The map below follows the saved road route between Plains and Billings.
Turn-by-Turn Driving Directions
Step-by-step road directions between Plains and Billings.
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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
105.3 mi · 1 hr 45 min
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11
Take the exit slight right toward I 90 Business: West Billings
1948 ft · 48 sec
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12
Keep slight left to continue on I 90 Business: City Center
1.7 mi · 3 min
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13
Keep slight left to continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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14
Continue on Montana Avenue
1.4 km · 3 min · Montana Avenue
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15
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between Plains and Billings.
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.
Chance Light Rain leaving Plains and Rain And Snow Showers Likely near Billings.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Plains to Billings?
The road trip is about 419.2 miles (674.7 km) and usually takes 06h 30m 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 209.3 miles from Plains and 210 miles from Billings.
How much longer is the road route than the straight-line distance?
The direct path is about 324.2 miles (521.7 km), while the road route adds roughly 95 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 $57.58 one way or $115.15 round trip. Estimated CO2 is about 131.4 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Plains and Rain And Snow Showers Likely near Billings.
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 Billings. Straight-line distance: 324.14 mi (521.66 km).
#1 Plains
Town of the United States
| Population | 1,139 |
| Coordinates | 47.4602100, -114.8829100 |
| Altitude | 755 |
| Country | United States |
#2 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
End: Montana Avenue (-108.500696, 45.783296)
Estimated Travel Time
Distance: 675 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 58m |
| 40 mph (64.37 km/h) | 10h 28m |
| 50 mph (80.47 km/h) | 08h 23m |
| 60 mph (96.56 km/h) | 06h 59m |
| 70 mph (112.65 km/h) | 05h 59m |
| 80 mph (129 km/h) | 05h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $57.58 | $115.15 |
| Mid-grade | $4.23 | $62.58 | $125.15 |
| Premium | $4.55 | $67.28 | $134.56 |
| Diesel | $5.41 | $80.04 | $160.09 |
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.