How far is Sidney, MT from Miles City, MT?
The driving distance from Sidney, MT to Miles City, MT is about 126.4 miles (203.4 km), with a travel time of about 01h 59m by car.
- The straight-line flight distance is about 120.2 miles (193.5 km).
- For a round trip, plan for roughly 03h 59m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 59m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Sidney and Miles City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sidney and Miles City.
-
1
Start on North Central Avenue
2.5 mi · 3 min · North Central Avenue
-
2
Enter the roundabout and take exit 2 toward the route
41 m · 2 sec
-
3
Exit the roundabout
48.9 mi · 56 min
-
4
Take the exit right
1385 ft · 34 sec
-
5
Merge slight left
71.4 mi · 1 hr 7 min
-
6
Take the exit slight right
1047 ft · 26 sec
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7
Turn right
1.5 mi · 2 min
-
8
At the end of the road, turn left onto Valley Drive East
1.6 mi · 3 min · Valley Drive East
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9
Turn sharp left onto Main Street
17 m · 1 sec · Main Street
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10
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Sidney and Miles City.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
North Central Avenue
Merge slight left
71.4 mi · 01h 07m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Partly Sunny leaving Sidney and Mostly Sunny near Miles City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sidney to Miles City?
The road trip is about 126.4 miles (203.4 km) and usually takes 01h 59m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
West Glendive is a useful midpoint, sitting about 63.1 miles from Sidney and 63.3 miles from Miles City.
How much longer is the road route than the straight-line distance?
The direct path is about 120.2 miles (193.5 km), while the road route adds roughly 6.2 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 2:30 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.36 one way or $34.73 round trip. Estimated CO2 is about 39.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Sidney and Mostly Sunny near Miles City.
Stop Ideas Near West Glendive
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 West Glendive.
Glendive, MT
Sidney, MT
Miles City, MT
Flight Path Map
This map shows the direct air route between Sidney and Miles City. Straight-line distance: 120.22 mi (193.48 km).
#1 Sidney
City in Montana, United States
| Population | 6,297 |
| Coordinates | 47.7166800, -104.1563300 |
| Altitude | 594 |
| Country | United States |
#2 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| Country | United States |
End: Main Street (-105.84056, 46.408351)
Estimated Travel Time
Distance: 203 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 12m |
| 40 mph (64.37 km/h) | 03h 09m |
| 50 mph (80.47 km/h) | 02h 31m |
| 60 mph (96.56 km/h) | 02h 06m |
| 70 mph (112.65 km/h) | 01h 48m |
| 80 mph (129 km/h) | 01h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $17.36 | $34.73 |
| Mid-grade | $4.23 | $18.87 | $37.74 |
| Premium | $4.55 | $20.29 | $40.58 |
| Diesel | $5.41 | $24.14 | $48.28 |
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.