Origin
Fort Benton, MT
Late night in Fort Benton on Wednesday
Local time
12:49 AM
MDT
Current temp
78°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 2, 2026 · Editorial standards
Drive Time
3h 53m
Distance
205.3 mi
330 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$36
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Fort Benton, MT
Wikimedia Commons
Missoula, MT
Wikimedia Commons
Fort Benton to Missoula is 205.3 miles and takes about 3h 53m via US 89, US 87, and the First Special Service Force Memorial Highway, with a fuel budget near $36 and enough daylight to finish in a day. This trip stays within the Mountain West region, traversing Montana from start to finish. Given its mostly highway profile, expect a straightforward drive with minimal delays. It's a solid option if you're looking for a direct route across the state, allowing for a full day of travel without feeling rushed.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
102.6 miles from Fort Benton, MT
A natural place for your longest stop of the day , about 1h 56m into the drive .
| Road | Distance | Duration |
|---|---|---|
| US 89 | 148.3 mi | 2h 47m |
| US 87 | 35.7 mi | 38m |
| First Special Service Force Memorial Highway | 9.4 mi | 9m |
| MT 200 | 4.5 mi | 5m |
| 3rd Street Northwest | 1.4 mi | 1m |
| MT 386 | 1.4 mi | 2m |
| Central Avenue West | 1.2 mi | 1m |
| Old Havre Highway | 0.8 mi | 1m |
Hour-of-day weekday pattern from 8 FHWA count stations on your route.
Peak
5 PM
~393 veh/hr typical · worst 526
Quietest
1 AM
~14 veh/hr
Peak-to-quiet ratio
28.1×
busier at peak than in the quiet hours
Averaged across 103 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between Fort Benton, MT and Missoula, MT.
Start on this road
Turn right
Turn left onto Main Street
Turn right onto 12th Street
Turn left onto MT 386
Continue on MT 386
Turn left onto US 87
Continue on US 87
Turn right onto Old Havre Highway
Turn right onto Smelter Avenue Northeast
Turn straight onto 3rd Street Northwest
Turn right onto I 15 Business
Take the exit onto I 15 Business
Merge onto I 15; US 89; MT 200
Take the exit onto US 89; MT 200
Keep slight right at fork onto MT 200
Take the exit onto I 90 Business; US 12
Enter roundabout onto I 90 Bus; US 12
Continue on I 90 Bus; US 12
Enter roundabout onto I 90 Bus; US 12
Continue on I 90 Bus; US 12
Turn right onto I 90 Bus; US 12
Turn right onto North Higgins Avenue
Arrive at destination
With a drive time under four hours, this route is easily manageable in a single day. Aim to depart in the morning to maximize daylight and allow for a leisurely pace. You'll encounter only one suggested stop, so plan your fuel and rest breaks accordingly. Keep an eye on your fuel gauge, especially during the 148.3-mile stretch on US 89, as services may be spaced out. Since it's a relatively short drive, you have the flexibility to stop more often if needed, but the direct highway nature means you can also make good time.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
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 45 miles or 52m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 102.6 miles or 1h 56m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 11m
Traffic, exits, and arrival timing usually matter more near Missoula, MT than in the middle of the route.
Open the route before leaving Fort Benton, 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.
Day 1
Settle into the route from Fort Benton, MT
This is one driving day of about 205.3 miles and 3h 53m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
103 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 45 miles helps settle the day before fatigue starts building.
The midpoint is around 102.6 miles from Fort Benton, MT, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before US 89 if your tank is already low. That segment runs about 148.3 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0.1 and 204.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto Main Street
Navigation decision point
Turn left onto MT 386 / Saint Charles Street
Navigation decision point
Turn left onto US 87
Lane positioning matters here
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
Enter roundabout onto I 90 Bus; US 12 / Van Buren Street
Roundabout - know your exit number before entering
Regular Gas
$35.60 one way
$71.21 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $37.24 | $74.47 |
| premium | $4.95 | $40.01 | $80.02 |
| diesel | $5.60 | $45.25 | $90.51 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$36
Meals
$25–$50
Total
$61–$86
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 71.8 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $22 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 61.6 | 0 | $21.56 | $9.85 |
| Efficient EV | 51.3 | 0 | $17.96 | $8.21 |
| EV Truck/SUV | 82.1 | 1 | $28.74 | $13.14 |
Gas CO2
72 kg
EV CO2
24 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Late night in Fort Benton on Wednesday
Local time
12:49 AM
MDT
Current temp
78°F
Unavailable
Destination
Late night in Missoula on Wednesday
Local time
12:49 AM
MDT
Current temp
76°F
Unavailable
68°F
Lincoln, MT
103 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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
You'll be on highways for 93% of this 205.3-mile drive. The longest continuous stretch on highways is 148.3 miles, primarily on US 89. This means you'll experience a significant amount of rural cruising with fewer exits and services. Expect the transition from highway to surface roads to occur later in the drive, offering a consistent driving experience for most of the trip.
This is a straightforward highway drive that stays mostly on US 89 and US 87. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.1 miles in near Main Street.
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 3h 53m drive. You will face about 17 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.1 miles (Main Street): Navigation decision point; at 0.5 miles (MT 386 / Saint Charles Street): Navigation decision point; at 2 miles (US 87): Lane positioning matters here.
Top landmarks
“The Garden City” · Founded 1866
Missoula is a medium-sized 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 Recreation Area, and a multitude of recreational opportunities, along with an active and colorful downtown.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 3h 53m. Total distance: 205.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 53m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (93%). Straightforward navigation.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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