Lewistown to Whitefish is 323.6 miles and takes about 6h 17m via US 87, US 2, and US 89, with a fuel budget near $52 and enough daylight to finish in a day. This route stays within Montana, traversing the Mountain West region from start to finish. Expect mostly highway driving with a relatively straightforward path. It's a solid option if you're looking for a single-day drive across the state, keeping you on major roads for most of the trip.
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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
161.8 miles from Lewistown, MT
A natural place for your longest stop of the day
, about 3h 3m into the drive
.
Main Roads
Road
Distance
Duration
US 87
83.6 mi
1h 30m
US 2
80.2 mi
1h 32m
United States Highway 89
49.2 mi
53m
US 89
40.5 mi
45m
US Highway 87
16.1 mi
17m
13th Lane Northwest
12.9 mi
15m
First Special Service Force Memorial Highway
9.4 mi
9m
US Route 2
7.5 mi
10m
Longest stretch:
US 87
— 83.6 mi, about 1h 30m
Traffic on I-15
Hour-of-day weekday pattern from 4 FHWA count stations on your route.
Peak
5 PM
~391 veh/hr typical
· worst 507
Quietest
1 AM
~14 veh/hr
Peak-to-quiet ratio
27.9×
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 Lewistown, MT and Whitefish, MT.
1
Start on 6th Avenue South
395 ft·22 sec·6th Avenue South
2
Turn left onto US 87; MT 200
0.8 mi·2 min·West Main Street
3
Continue on US 87; MT 200
1.5 mi·2 min·US Highway 87
4
At end of road, turn left onto US 87; US 191; MT 200
15 mi·15 min·US Highway 87
5
Continue on US 87; MT 3; MT 200
64 mi·1 hr 9 min·US 87; MT 3; MT 200
6
Turn slight right
0.3 mi·20 sec
7
Enter roundabout
172 ft·2 sec
8
Continue
0.1 mi·7 sec
9
Continue on US 87; US 89; MT 3; MT 200
19 mi·20 min·US 87; US 89; MT 3; MT 200
10
Turn right onto US 87 Bypass
0.9 mi·1 min·57th Street South
11
Turn left onto 2nd Avenue North
4.3 mi·7 min·2nd Avenue North
12
At end of road, turn left onto I 15 Business
240 ft·4 sec·Park Drive North
13
Turn right onto I 15 Business
0.2 mi·23 sec·1st Avenue North
14
Continue on I 15 Business
0.2 mi·17 sec·First Avenue North Bridge
15
Continue on I 15 Business
1.4 mi·1 min·Central Avenue West
16
Take the exit onto I 15 Business
0.2 mi·32 sec·I 15 Business
17
Merge onto I 15; US 89; MT 200
9.4 mi·9 min·First Special Service Force Memorial Highway
18
Take the exit onto US 89; MT 200
8.3 mi·9 min·US 89; MT 200
Exit 290
19
Turn right onto US 89
32 mi·35 min·US 89
20
Enter roundabout onto US 89
514 ft·17 sec·West Division Street
21
Continue on US 89
143 ft·4 sec·West Division Street
22
Turn slight right onto US 89
6.0 mi·8 min·Main Avenue North
23
Continue on US 89
13 mi·15 min·13th Lane Northwest
24
Continue on US 89
49 mi·53 min·United States Highway 89
25
At end of road, turn left onto US 2; US 89
3.9 mi·6 min·US 2; US 89
26
Enter roundabout onto US 2
246 ft·3 sec·US 2
27
Continue on US 2
72 mi·1 hr 19 min·US 2
28
Turn right
0.2 mi·1 min
29
At end of road, turn left onto Old US 2
0.4 mi·1 min·Old US 2
30
Turn right onto US 2
7.5 mi·10 min·US Route 2
31
Continue on US 2
3.0 mi·4 min·US 2
Use the straight lane.
32
Continue on US 2
2.0 mi·4 min·9th Street
33
Continue on US 2
1.0 mi·1 min·US 2
Use the straight / right lanes.
34
Continue on MT 40
4.5 mi·5 min·MT 40
Use the straight / right lanes.
35
Turn right onto US 93
0.5 mi·50 sec·US 93 South
36
Continue on US 93
1.7 mi·3 min·Spokane Avenue
Use the straight lane.
37
Turn left onto US 93
0.1 mi·22 sec·East 2nd Street
38
Turn right
168 ft·12 sec
39
Arrive at destination
Trip Plan
Given the 6h 17m estimated drive time, this trip is comfortably achievable in a single day. Leaving Lewistown in the morning will give you plenty of daylight to reach Whitefish. With only one recommended stop and a fuel cost around $52, planning your fuel and a quick meal is straightforward. Since this is a mostly highway route, pay attention to the 83.6-mile stretch on US 87 to gauge your progress. You'll want to ensure you have enough fuel before starting that longer segment.
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 1 meaningful break for fuel, food, and rest.
The halfway point lands around 161.8 miles from Lewistown, MT, or about 3h 3m into the drive.
The longest continuous stretch on this route runs about 83.6 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 71 miles or 1h 18m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 161.8 miles or 3h 3m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 1m
Traffic, exits, and arrival timing usually matter more near Whitefish, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Lewistown, 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 Lewistown, MT
This is one driving day of about 323.6 miles and 6h 17m.
Your first comfortable stop window is around 71 miles from Lewistown, MT.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 87 for about 83.6 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 19
5 decision points cluster between mile 81.6 and 302.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
81.6 mi into trip|~1h 30m in
Enter roundabout
Roundabout - know your exit number before entering
5
106.3 mi into trip|~2h in|I 15 Business / Park Drive North
At end of road, turn left onto I 15 Business / Park Drive North
Navigation decision point
5
158.2 mi into trip|~2h 58m in|US 89 / West Division Street
Enter roundabout onto US 89 / West Division Street
Roundabout - know your exit number before entering
5
226.5 mi into trip|~4h 15m in|US 2; US 89
At end of road, turn left onto US 2; US 89
Navigation decision point
5
302.8 mi into trip|~5h 43m in|Old US 2
At end of road, turn left onto Old US 2
Navigation decision point
Fuel & Cost
Regular Gas
$50.44 one way
$100.88 round trip
$3.96/gal25.4 MPG avg113 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$53.16
$106.33
premium
$4.47
$57.00
$114.00
diesel
$4.80
$61.10
$122.20
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$50
Meals
$25–$50
Total
$75–$100
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 113.2 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $34 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
97.1
1
$33.98
$15.53
Efficient EV
80.9
0
$28.32
$12.94
EV Truck/SUV
129.4
1
$45.30
$20.71
Gas CO2
113 kg
EV CO2
38 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 Jul 17, 2026
Origin
Lewistown, MT
Late night
in Lewistown on Sunday
Local time
12:53 AM
MDT
Current temp
91°F
Mostly Sunny
ESE 6 to 13 mph5% chanceLive forecast
Flash Flood Watch
Flash Flood Watch issued July 17 at 12:23AM MDT until July 18 at 12:00AM MDT by NWS Great Falls MT
Destination
Whitefish, MT
Late night
in Whitefish on Sunday
Local time
12:53 AM
MDT
Current temp
92°F
Mostly Sunny then Chance Showers And Thunderstorms
NNE 2 mph31% chanceLive forecast
Flash Flood Watch
Flash Flood Watch issued July 17 at 12:23AM MDT until July 18 at 12:00AM MDT by NWS Great Falls 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.
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 warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 17m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Glacier National Park
National Park
A showcase of melting glaciers, alpine meadows, carved valleys, and spectacular lakes. With over 700 miles of trails, Glacier is a paradise for adventurous visitors seeking a landscape steeped in huma...
14 mi from route
~36 min detour
$35
near mile 290.1
Park Closure: Going-to-the-Sun Road Seasonal Closure
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll be on the highway for about 87% of this 323.6-mile drive. The longest continuous stretch without needing to navigate a turn is 83.6 miles on US 87. Expect to spend most of your time cruising on these main arteries, rather than navigating complex city streets or winding backroads. The profile is mostly highway, suggesting a consistent driving experience with fewer distractions.
87% highway — fuel and pacing are the main things to plan.
39 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 83.6 mi on US 87.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on US 87 and US 2. There are only a few real navigation decisions along the way. The trickiest moment comes around 81.6 miles in.
Driving Effort3/10
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 6h 17m, endurance matters. Plan breaks every 2-3 hours. The 19 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 81.6 miles: Roundabout - know your exit number before entering; at 106.3 miles (I 15 Business / Park Drive North): Navigation decision point; at 158.2 miles (US 89 / West Division Street): Roundabout - know your exit number before entering.
The longest stretch is about 83.6 miles on US 87. The full list of main roads is in the Roads section above.
Yes — we found about 5 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 Whitefish, 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 1 meaningful breaks. There are 5 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 81.6 miles: Roundabout - know your exit number before entering; at 106.3 miles (I 15 Business / Park Drive North): Navigation decision point; at 158.2 miles (US 89 / West Division Street): Roundabout - know your exit number before entering.
Yes — Glacier National Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.3 hours each way, a round trip means 12.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Whitefish, MT before the return drive.
