Miles City, MT to Missoula, MT is 488.2 miles and takes about 8 hours 8 minutes via I 90, I 94, and I 94 Business, with a fuel budget near $86 and enough daylight to finish in a day, though two days is recommended. This drive stays within the Mountain West region, traversing Montana entirely. Expect a predominantly highway experience, suitable for those who prefer covering ground efficiently. Planning for an overnight stop will make the drive more relaxed and allow for potential detours or breaks.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
244.1 miles from Miles City, MT
A natural place for your longest stop of the day
, about 4h 9m into the drive
.
Main Roads
Road
Distance
Duration
I 90
348.5 mi
5h 42m
I 94
135.4 mi
2h 18m
I 94 Business
2.2 mi
3m
Main Street
1.1 mi
2m
East Broadway Street
0.6 mi
<1m
Van Buren Street
0.2 mi
<1m
I 90 Business
0.2 mi
<1m
North Higgins Avenue
<0.1 mi
—
Some road-level metrics are being recalculated.
Longest stretch:
I 90
— 348.5 mi, about 5h 42m
Traffic on I-90
Hour-of-day weekday pattern from 32 FHWA count stations on your route.
Peak
4 PM
~651 veh/hr typical
· worst 823
Quietest
2 AM
~40 veh/hr
Peak-to-quiet ratio
16.3×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Miles City, MT and Missoula, MT.
1
Start on MT 59
1.1 mi·2 min·Main Street
2
Continue on I 94 Business
1.9 mi·2 min·I 94 Business
3
Take the ramp onto I 94 Business
66 ft·1 sec·I 94 Business
4
Keep slight right at fork onto I 94 Business
0.3 mi·36 sec·I 94 Business
5
Merge onto I 94; US 12
135 mi·2 hr 18 min·I 94; US 12
6
Merge onto I 90; US 87; US 212
2.8 mi·3 min·I 90; US 87; US 212
7
Continue on I 90; US 212
113 mi·1 hr 51 min·I 90; US 212
8
Continue on I 90; US 89; US 191
7.0 mi·6 min·I 90; US 89; US 191
9
Continue on I 90; US 191
113 mi·1 hr 54 min·I 90; US 191
Use the straight / slight right lanes.
10
Keep slight left at fork onto I 90
113 mi·1 hr 46 min·I 90
Toward I 90 West: Missoula
11
Take the exit onto I 90 Business; US 12
0.2 mi·26 sec·I 90 Business; US 12
Toward US 12 West, I 90 Business
12
Enter roundabout onto I 90 Bus; US 12
206 ft·2 sec·Van Buren Street
13
Continue on I 90 Bus; US 12
212 ft·3 sec·Van Buren Street
14
Enter roundabout onto I 90 Bus; US 12
92 ft·1 sec·Van Buren Street
15
Continue on I 90 Bus; US 12
0.1 mi·11 sec·Van Buren Street
16
Turn right onto I 90 Bus; US 12
0.6 mi·55 sec·East Broadway Street
Use the straight / left / right lanes.
17
Turn right onto North Higgins Avenue
19 ft·0 sec·North Higgins Avenue
18
Arrive at destination
North Higgins Avenue
Trip Plan
Given the 488.2-mile distance and 8-hour duration, splitting this drive over two days is a smart move. Aim to leave early in the morning if you plan to drive it in one go, but consider an overnight stop around the halfway point to break up the 8+ hours of driving. The route has only 2 designated stops, so plan your fuel and rest breaks strategically, especially considering the longest stretch is over 348 miles. Keep an eye on your fuel gauge; it's best to fill up whenever you see a service area on I 90.
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.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 244.1 miles from Miles City, MT, or about 4h 9m into the drive.
The longest continuous stretch on this route runs about 348.5 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 107 miles or 1h 51m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 244.1 miles or 4h 9m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 244.1 miles or 4h 9m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 11m
Traffic, exits, and arrival timing usually matter more near Missoula, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Miles City, 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.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Miles City, MT
Aim for roughly 244 miles and 4.1 hours of wheel time on this day.
Day 2
Finish the approach into Missoula, MT
Aim for roughly 244 miles and 4.1 hours of wheel time on this day.
Your first comfortable stop window is around 107 miles from Miles City, MT.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 90 for about 348.5 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 3.1 and 487.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
3.1 mi into trip|~5m in|I 94 Business
Keep slight right at fork onto I 94 Business
Highway fork - watch signs carefully
5
374.7 mi into trip|~6h 20m in|I 90
Keep slight left at fork onto I 90 toward I 90 West: Missoula
Highway fork - watch signs carefully
Toward I 90 West: Missoula
5
487.2 mi into trip|~8h 7m in|I 90 Business; US 12
Take the exit onto I 90 Business; US 12 toward US 12 West, I 90 Business
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 12 West, I 90 Business
5
487.4 mi into trip|~8h 7m in|I 90 Bus; US 12 / Van Buren Street
Enter roundabout onto I 90 Bus; US 12 / Van Buren Street
Roundabout - know your exit number before entering
5
487.5 mi into trip|~8h 7m in|I 90 Bus; US 12 / Van Buren Street
Enter roundabout onto I 90 Bus; US 12 / Van Buren Street
Roundabout - know your exit number before entering
Fuel & Cost
Regular Gas
$76.09 one way
$152.19 round trip
$3.96/gal25.4 MPG avg171 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$80.21
$160.41
premium
$4.47
$85.99
$171.98
diesel
$4.80
$92.18
$184.36
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$76
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$206–$316
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 170.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $51 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
146.5
1
$51.26
$23.43
Efficient EV
122.1
1
$42.72
$19.53
EV Truck/SUV
195.3
2
$68.35
$31.24
Gas CO2
171 kg
EV CO2
57 kg (67% 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 Jul 16, 2026
Origin
Miles City, MT
Morning
in Miles City on Saturday
Local time
10:33 AM
MDT
Current temp
96°F
Sunny
NNE 8 mph4% chanceLive forecast
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued July 16 at 5:08PM MDT until July 16 at 5:30PM MDT by NWS Great Falls MT
Special Weather Statement
Special Weather Statement issued July 16 at 5:04PM MDT by NWS Missoula MT
Destination
Missoula, MT
Morning
in Missoula on Saturday
Local time
10:33 AM
MDT
Current temp
95°F
Chance Showers And Thunderstorms
ENE 2 mph30% chanceLive forecast
Severe Thunderstorm Warning
Severe Thunderstorm Warning issued July 16 at 5:08PM MDT until July 16 at 5:30PM MDT by NWS Great Falls MT
Special Weather Statement
Special Weather Statement issued July 16 at 5:04PM MDT by NWS Missoula MT
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
8h 8m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
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 trip is 100% highway driving, meaning you'll spend your entire 8 hours and 8 minutes on major interstates. The longest continuous stretch you'll encounter is 348.5 miles on I 90. You'll be cruising through Montana's varied terrain, with a mix of open expanses and potential mountain grades as you approach western Montana. Be aware of the significant mileage between services on some segments.
100% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 348.5 mi on I 90.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 90 and I 94. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 3.1 miles in near I 94 Business.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 488.2 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 3.1 miles (I 94 Business): Highway fork - watch signs carefully; at 374.7 miles (I 90): Highway fork - watch signs carefully; at 487.2 miles (I 90 Business; US 12): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Missoula is a medium size city in Western Montana with a population of about 73,000 (2020). The hub of five valleys in the northwest region of the state, or Glacier Country, the town boasts the University of Montana, the Rattlesnake Wilderness Area, and a multitude of recreational opportunities, along with an active and colorful downtown.
Top landmarks
•Fort Missoula
•Gleim Building — building in Missoula, Montana, US
•Masonic Lodge — Masonic lodge in Missoula, Montanna
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
8h 8m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (100%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 348.5 miles on I 90. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 244 miles on day one.
Yes — we found about 20 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Missoula, 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. There are 20 rest areas along the route for bathroom stops.
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 3.1 miles (I 94 Business): Highway fork - watch signs carefully; at 374.7 miles (I 90): Highway fork - watch signs carefully; at 487.2 miles (I 90 Business; US 12): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Not recommended in a single day. At 8.1 hours each way, a round trip means 16.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Missoula, MT before the return drive.
