How far is East Missoula, MT from Billings, MT?
The driving distance from East Missoula, MT to Billings, MT is about 341.3 miles (549.3 km), with a travel time of about 05h 04m by car.
- The straight-line flight distance is about 270.3 miles (435 km).
- For a round trip, plan for roughly 10h 09m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 05h 04m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Gallatin County, Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between East Missoula and Billings.
Turn-by-Turn Driving Directions
Step-by-step road directions between East Missoula and Billings.
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1
Start on Randles Street
572 ft · 32 sec · Randles Street
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2
Turn left onto Old Montana 200
2586 ft · 59 sec · Old Montana 200
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3
Take the ramp sharp left
1447 ft · 35 sec
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4
Merge slight left
113.5 mi · 1 hr 47 min
-
5
Keep slight right
110.8 mi · 1 hr 51 min
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6
Continue straight
6.9 mi · 6 min
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7
Continue straight
105.3 mi · 1 hr 45 min
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8
Take the exit slight right toward I 90 Business: West Billings
1948 ft · 48 sec
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9
Keep slight left to continue on I 90 Business: City Center
1.7 mi · 3 min
-
10
Keep slight left to continue on Montana Avenue
1.3 mi · 2 min · Montana Avenue
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11
Continue on Montana Avenue
1.4 km · 3 min · Montana Avenue
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12
Arrive at your destination
0 m · 1 sec · Montana Avenue
Car Route Details
A richer read on the saved driving route between East Missoula and Billings.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Old Montana 200
Merge slight left
113 mi · 01h 47m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving East Missoula and Mostly Sunny near Billings.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from East Missoula to Billings?
The road trip is about 341.3 miles (549.3 km) and usually takes 05h 04m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Three Forks is a useful midpoint, sitting about 170.4 miles from East Missoula and 170.8 miles from Billings.
How much longer is the road route than the straight-line distance?
The direct path is about 270.3 miles (435 km), while the road route adds roughly 71 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 6:50 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.87 one way or $93.74 round trip. Estimated CO2 is about 107 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around East Missoula and Mostly Sunny near Billings.
Stop Ideas Near Three Forks
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Three Forks.
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Flight Path Map
This map shows the direct air route between East Missoula and Billings. Straight-line distance: 270.32 mi (435.04 km).
#1 East Missoula
Census designated place
| Population | 2,157 |
| Coordinates | 46.8707600, -113.9445500 |
| Altitude | 995 |
| Country | United States |
#2 Billings
The most populous city in Montana.
| Population | 117,445 |
| Coordinates | 45.7832900, -108.5006900 |
| Altitude | 952 |
| Country | United States |
End: Montana Avenue (-108.500696, 45.783296)
Estimated Travel Time
Distance: 549 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 22m |
| 40 mph (64.37 km/h) | 08h 31m |
| 50 mph (80.47 km/h) | 06h 49m |
| 60 mph (96.56 km/h) | 05h 41m |
| 70 mph (112.65 km/h) | 04h 52m |
| 80 mph (129 km/h) | 04h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $46.87 | $93.74 |
| Mid-grade | $4.23 | $50.94 | $101.88 |
| Premium | $4.55 | $54.77 | $109.54 |
| Diesel | $5.41 | $65.16 | $130.32 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Montana · Jun 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.