Shelby, MT to Billings, MT is 304.2 miles and takes about 5h 29m via First Special Service Force Memorial Highway and US 87, with a fuel budget near $48 and enough daylight to finish in a day. This one-day drive takes you across Montana, moving from the Mountain West region to the Mountain West region. Expect a highway-focused experience for the majority of the trip. This is a straightforward journey that's ideal if you're looking for a direct route with minimal fuss. It's a solid option for a single-day transit across the state.
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
152.1 miles from Shelby, MT
A natural place for your longest stop of the day
, about 2h 37m into the drive
.
Main Roads
Road
Distance
Duration
First Special Service Force Memorial Highway
81.2 mi
1h 16m
US 87
64.3 mi
1h 9m
US 12
45.1 mi
50m
MT 3
41 mi
46m
US 191
39.2 mi
43m
10th Avenue South
22.6 mi
25m
MT-3
2.5 mi
2m
North 27th Street
2.2 mi
3m
Longest stretch:
First Special Service Force Memorial Highway
— 81.2 mi, about 1h 16m
Traffic on I-15
Hour-of-day weekday pattern from 8 FHWA count stations on your route.
Peak
4 PM
~255 veh/hr typical
· worst 333
Quietest
2 AM
~10 veh/hr
Peak-to-quiet ratio
25.5×
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 Shelby, MT and Billings, MT.
1
Start on Maple Avenue
81 ft·9 sec·Maple Avenue
2
Turn left onto US 2
0.2 mi·40 sec·Main Street
3
Turn right onto I 15 Bus; US 2
453 ft·16 sec·5th Avenue North
4
Continue on I 15 Bus; US 2
1.0 mi·1 min·West Roosevelt Highway
5
Turn left onto I 15 BUS
0.3 mi·41 sec·I 15 BUS
Toward I 15 South: Great Falls
6
Merge onto I 15
81 mi·1 hr 16 min·First Special Service Force Memorial Highway
7
Take the exit onto I 15 Business
0.2 mi·30 sec·I 15 Business
Toward I 15 Business
8
Turn left onto I 15 Business
1.5 mi·1 min·Central Avenue West
9
Continue on I 15 Business
0.2 mi·17 sec·First Avenue North Bridge
10
Continue on I 15 Business
1.2 mi·2 min·1st Avenue North
11
Turn right onto US 87
0.8 mi·1 min·14th Street North
12
Turn left onto US 87; US 89; MT 3; MT 200
23 mi·25 min·10th Avenue South
13
Enter roundabout
224 ft·2 sec
14
Continue
0.3 mi·20 sec
15
Turn straight onto US 87; MT 3; MT 200
64 mi·1 hr 9 min·US 87; MT 3; MT 200
16
Turn right onto US 191; MT 3
39 mi·43 min·US 191; MT 3
17
Turn left onto US 12; MT 3
45 mi·50 min·US 12; MT 3
18
Turn right onto MT 3
12 mi·14 min·MT 3
19
Continue on MT-3
2.5 mi·2 min·MT-3
20
Continue on MT 3
25 mi·28 min·MT 3
21
Enter roundabout onto MT 3
123 ft·1 sec·MT 3
22
Continue on MT 3
3.1 mi·3 min·MT 3
23
Enter roundabout onto North 27th Street
36 ft·0 sec·North 27th Street
24
Continue on North 27th Street
2.2 mi·3 min·North 27th Street
Use the straight lane.
25
Turn left onto I 90 Business
0.2 mi·33 sec·Montana Avenue
Use the left lane.
26
Arrive at destination
I 90 Business
Trip Plan
Since this trip is manageable in a single day, you have the flexibility to depart when it suits you best. Aim to leave earlier in the day to maximize daylight, especially given the 5h 29m estimated drive time. With a fuel cost estimated around $48, it’s wise to fill up before you leave Shelby. Keep an eye on your fuel gauge, as the longest stretch without a significant change in road is over 81 miles. Plan for one stop to break up the drive and refuel if necessary.
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.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 152.1 miles from Shelby, MT, or about 2h 37m into the drive.
The longest continuous stretch on this route runs about 81.2 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 67 miles or 1h 5m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 152.1 miles or 2h 37m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 25m
Traffic, exits, and arrival timing usually matter more near Billings, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Shelby, 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 Shelby, MT
This is one driving day of about 304.2 miles and 5h 29m.
Your first comfortable stop window is around 67 miles from Shelby, 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 First Special Service Force Memorial Highway for about 81.2 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 14
5 decision points cluster between mile 0 and 304 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|US 2 / Main Street
Turn left onto US 2 / Main Street
Navigation decision point
4
0.2 mi into trip|~0m in|I 15 Bus; US 2 / 5th Avenue North
Turn right onto I 15 Bus; US 2 / 5th Avenue North
Navigation decision point
5
1.3 mi into trip|~2m in|I 15 BUS
Turn left onto I 15 BUS toward I 15 South: Great Falls
Navigation decision point
Toward I 15 South: Great Falls
4
82.8 mi into trip|~1h 19m in|I 15 Business
Take the exit onto I 15 Business toward I 15 Business
Exit ramp - move to the correct lane early
Toward I 15 Business
6
304 mi into trip|~5h 28m in|I 90 Business / Montana Avenue
Turn left onto I 90 Business / Montana Avenue
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$47.41 one way
$94.83 round trip
$3.96/gal25.4 MPG avg106 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.17
$49.98
$99.95
premium
$4.47
$53.58
$107.16
diesel
$4.80
$57.44
$114.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$47
Meals
$25–$50
Total
$72–$97
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 106.4 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $32 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
91.3
1
$31.94
$14.60
Efficient EV
76.1
0
$26.62
$12.17
EV Truck/SUV
121.7
1
$42.59
$19.47
Gas CO2
106 kg
EV CO2
36 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
Shelby, MT
Late night
in Shelby on Sunday
Local time
12:48 AM
MDT
Current temp
93°F
Slight Chance Showers And Thunderstorms
ESE 12 mph19% chanceLive forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 2:16PM MDT until July 17 at 5:15PM MDT by NWS Billings MT
Special Weather Statement
Special Weather Statement issued July 17 at 2:14PM MDT by NWS Great Falls MT
Destination
Billings, MT
Late night
in Billings on Sunday
Local time
12:48 AM
MDT
Current temp
97°F
Partly Sunny
E 10 mph9% chanceLive forecast
Flash Flood Warning
Flash Flood Warning issued July 17 at 2:16PM MDT until July 17 at 5:15PM MDT by NWS Billings MT
Special Weather Statement
Special Weather Statement issued July 17 at 2:14PM MDT by NWS Great Falls MT
60°F
Denton, MT
152 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
4 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
5h 29m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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 route is primarily a highway-focused drive, with 63% of the journey on main roads like the First Special Service Force Memorial Highway and US 87. You'll encounter some longer, uninterrupted stretches, including an 81.2-mile section on the First Special Service Force Memorial Highway. While you'll experience highway speeds for a significant portion, the character can shift as you transition between these main arteries. It's a drive that offers a consistent pace for much of its length.
63% highway — fuel and pacing are the main things to plan.
26 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 81.2 mi on First Special Service Force Memorial Highway.
How Hard Is This Drive?
3/10
This is a straightforward highway drive that stays mostly on First Special Service Force Memorial Highway and US 87. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near US 2 / Main Street.
Driving Effort3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 29m drive. You will face about 14 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (US 2 / Main Street): Navigation decision point; at 0.2 miles (I 15 Bus; US 2 / 5th Avenue North): Navigation decision point; at 1.3 miles (I 15 BUS): Navigation decision point.
Billings is the largest city in Montana in Yellowstone County, with an estimated 110,000 people (2019). As a destination, Billings does a significant amount of convention business and is also the host to various regional events such as music festivals, athletic contests, rodeos, and outdoor activities. Billings hosts the largest hospitals in a 500-mile radius, as such the medical profession is a major source of employment in the area. Billings is also a frequent overnight or meal stop for westbound visitors to Yellowstone National Park, as it is the last major city for visitors going to the park via the Beartooth Highway.
Top landmarks
•Masonic Temple — building in Billings, Montana
•United States Post Office and Courthouse–Billings — post office in Billings, United States of America
•Northern Hotel — historic hotel in Billings, Montana, United States
The longest stretch is about 81.2 miles on First Special Service Force Memorial Highway. 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.
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: near the start (US 2 / Main Street): Navigation decision point; at 0.2 miles (I 15 Bus; US 2 / 5th Avenue North): Navigation decision point; at 1.3 miles (I 15 BUS): Navigation decision point.
Not recommended in a single day. At 5.5 hours each way, a round trip means 11.0 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Billings, MT before the return drive.
