How far is Miles City, MT from Sidney, MT?
The driving distance from Miles City, MT to Sidney, MT is about 126.5 miles (203.6 km), with a travel time of about 02h 02m by car.
- The straight-line flight distance is about 120.2 miles (193.5 km).
- For a round trip, plan for roughly 04h 04m 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 02h 02m.
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.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Miles City and Sidney.
Turn-by-Turn Driving Directions
Step-by-step road directions between Miles City and Sidney.
-
1
Start on Main Street
17 m · 10 sec · Main Street
-
2
Turn sharp right onto Valley Drive East
1.6 mi · 3 min · Valley Drive East
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3
Turn right
1.6 mi · 2 min
-
4
Take the ramp left
71.5 mi · 1 hr 7 min
-
5
Take the exit slight right toward MT 16: Glendive, Sidney
1422 ft · 38 sec
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6
Turn left
49 mi · 56 min
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7
Enter the roundabout and take exit 2 toward South Central Avenue
40 m · 2 sec · South Central Avenue
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8
Exit the roundabout onto South Central Avenue
2.5 mi · 3 min · South Central Avenue
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9
Arrive at your destination
0 m · 1 sec · North Central Avenue
Car Route Details
A richer read on the saved driving route between Miles City and Sidney.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Valley Drive East
Take the ramp left
71.5 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.
Mostly Sunny leaving Miles City and Partly Sunny near Sidney.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Miles City to Sidney?
The road trip is about 126.5 miles (203.6 km) and usually takes 02h 02m 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 63.2 miles from Miles City and 63.3 miles from Sidney.
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 6.3 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 2:26 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 Mostly Sunny around Miles City and Partly Sunny near Sidney.
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 Miles City and Sidney. Straight-line distance: 120.22 mi (193.48 km).
#1 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| Country | United States |
#2 Sidney
City in Montana, United States
| Population | 6,297 |
| Coordinates | 47.7166800, -104.1563300 |
| Altitude | 594 |
| Country | United States |
End: North Central Avenue (-104.156325, 47.716678)
Estimated Travel Time
Distance: 204 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.