Spanning 400.5 miles across Montana, this trek from Dillon to Miles City is a significant cross-state journey that typically takes about 7 hours and 16 minutes behind the wheel. Because you will be navigating through the Mountain West, expect a substantial day of travel that is best suited for a single, focused day trip if you get an early start. Budgeting approximately $63 for fuel is a smart way to prepare for the expenses of this transit. While the route is entirely contained within the Mountain West, the transition from the mountainous landscape near Dillon to the plains near Miles City is notable. Whether you choose to power through in one go or break it up, having a clear plan for your 400-mile transit will make the experience much smoother.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
200.3 miles from Dillon, MT
A natural place for your longest stop of the day
, about 3h 48m into the drive
.
Main Roads
Road
Distance
Duration
I 90
206.6 mi
3h 26m
I 94
134.7 mi
2h 20m
MT 41
27.1 mi
40m
Main Street
14.4 mi
21m
Mount Highway 55
9.6 mi
14m
I 94 Business
3.6 mi
6m
Montana Highway 55
2.1 mi
3m
Montana Street
0.8 mi
1m
Longest stretch:
I 90
— 206.6 mi, about 3h 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Dillon, MT and Miles City, MT.
1
Start on South Idaho Street
0.2 mi·43 sec·South Idaho Street
2
Turn left onto I 15 Business
345 ft·15 sec·East Helena Street
3
At end of road, turn right onto I 15 Business
0.8 mi·1 min·Montana Street
4
Continue on MT 41
27 mi·40 min·MT 41
5
At end of road, turn left onto MT 41
14 mi·21 min·Main Street
6
Turn straight onto MT 55
2.1 mi·3 min·Montana Highway 55
7
Continue on MT 55
0.3 mi·27 sec·State Highway 55
8
Turn straight onto MT 55
9.6 mi·14 min·Mount Highway 55
9
Turn right onto MT 2; MT 55
0.4 mi·41 sec·West Legion Avenue
10
Turn left onto MT 55
0.5 mi·49 sec·North Whitehall Street
11
Take the ramp
0.2 mi·24 sec
12
Merge onto I 90
207 mi·3 hr 26 min·I 90
13
Keep slight left at fork onto I 94
135 mi·2 hr 20 min·I 94
Toward I 94 East: Bismark
14
Take the exit onto I 94 Business
3.6 mi·6 min·I 94 Business
Toward I 94 Business: Miles City, Jordan
15
Arrive at destination
MT 59
Trip Plan
To manage this 7-hour and 16-minute drive effectively, try to depart early in the morning to avoid fatigue during the final stretches. Plan for at least two designated stops to stretch your legs and refuel, as the long, 206.6-mile stretch on I-90 can be mentally taxing. Since you are staying on major interstates for nearly the entire trip, keep a close eye on your fuel gauge during the more remote sections of the route. If you find the 400.5-mile distance daunting, consider breaking the journey into two smaller segments to keep your energy levels high. Ultimately, the high highway percentage makes this a reliable route, provided you stay alert during the long, consistent interstate portions.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 200.3 miles from Dillon, MT, or about 3h 48m into the drive.
The longest continuous stretch on this route runs about 206.6 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 88 miles or 1h 56m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 200.3 miles or 3h 48m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 11m
Traffic, exits, and arrival timing usually matter more near Miles City, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Dillon, MT so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Dillon, MT
This is one driving day of about 400.5 miles and 7h 16m.
Your first comfortable stop window is around 88 miles from Dillon, MT.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 90 for about 206.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 9
5 decision points cluster between mile 0.3 and 396.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.3 mi into trip|~0m in|I 15 Business / Montana Street
At end of road, turn right onto I 15 Business / Montana Street
Navigation decision point
5
28.2 mi into trip|~42m in|MT 41 / Main Street
At end of road, turn left onto MT 41 / Main Street
Navigation decision point
4
55.5 mi into trip|~1h 23m in
Take the ramp
Navigation decision point
5
262.3 mi into trip|~4h 50m in|I 94
Keep slight left at fork onto I 94 toward I 94 East: Bismark
Highway fork - watch signs carefully
Toward I 94 East: Bismark
5
396.9 mi into trip|~7h 10m in|I 94 Business
Take the exit onto I 94 Business toward I 94 Business: Miles City, Jordan
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 94 Business: Miles City, Jordan
Fuel & Cost
Regular Gas
$63.47 one way
$126.93 round trip
$4.03/gal25.4 MPG avg140 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$66.52
$133.05
premium
$4.53
$71.44
$142.89
diesel
$5.61
$88.43
$176.85
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$63
Meals
$25–$50
Total
$88–$113
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 140.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $42 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
120.1
1
$42.05
$19.22
Efficient EV
100.1
1
$35.04
$16.02
EV Truck/SUV
160.2
2
$56.07
$25.63
Gas CO2
140 kg
EV CO2
47 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 18, 2026
Origin
Dillon, MT
Evening
in Dillon on Saturday
Local time
7:27 PM
MDT
Current temp
19°F
Mostly Clear
SSW 6 mph1% chanceLive forecast
Destination
Miles City, MT
Evening
in Miles City on Saturday
Local time
7:27 PM
MDT
Current temp
25°F
Partly Cloudy
W 6 mph3% chanceLive forecast
74°F
Columbus, MT
200 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
6 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 16m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This drive is heavily highway-focused, with 96% of your journey spent on high-speed roads. You will rely primarily on I-90 and I-94 to cover the distance, though a brief stint on MT-41 helps you navigate the initial leg of the trip. Be prepared for a long haul, as your longest uninterrupted stretch clocks in at 206.6 miles on I-90. The road's personality is defined by these fast, efficient interstate miles that prioritize speed over technical turns. Once you transition onto the interstates, the route settles into a steady, consistent pace that allows you to cover large swaths of Montana landscape without the need for constant navigation.
96% highway — fuel and pacing are the main things to plan.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 206.6 mi on I 90.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 90 and I 94. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.3 miles in near I 15 Business / Montana Street.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 7h 16m, endurance matters. Plan breaks every 2-3 hours. The 9 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 0.3 miles (I 15 Business / Montana Street): Navigation decision point; at 28.2 miles (MT 41 / Main Street): Navigation decision point; at 55.5 miles: Navigation decision point.
Elevation Profile
High-altitude sections with notable climbs
5,169 ft2,362 ft
Total Climb
1,159 ft
Total Descent
3,894 ft
Highest Point
5,169 ft
~66.8 mi in
Elevation Range
2,807 ft
Notable High Points
5,169 ft at ~66.8 miles+361 ft prominence
4,887 ft at ~133.5 miles+497 ft prominence
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 7h 16m. Total distance: 400.5 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
The longest stretch is about 206.6 miles on I 90. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Miles City, MT before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
Mostly yes along the main roads, but rural stretches through MT can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: at 0.3 miles (I 15 Business / Montana Street): Navigation decision point; at 28.2 miles (MT 41 / Main Street): Navigation decision point; at 55.5 miles: Navigation decision point.
Not recommended in a single day. At 7.3 hours each way, a round trip means 14.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Miles City, MT before the return drive.
