How far is Louisiana, MO from O'Fallon, MO?
The driving distance from Louisiana, MO to O'Fallon, MO is about 52.7 miles (84.8 km), with a travel time of about 01h 04m by car.
- The straight-line flight distance is about 48 miles (77.2 km).
- For a round trip, plan for roughly 02h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 04m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Lincoln County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Louisiana and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Louisiana and O'Fallon.
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1
Start on Tennessee Street
11 m · 7 sec · Tennessee Street
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2
Turn left onto North 7th Street
90 m · 18 sec · North 7th Street
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3
Turn left onto Georgia Street
1194 ft · 28 sec · Georgia Street
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4
Turn right onto South 3rd Street
50 mi · 1 hr 9 min · South 3rd Street
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5
Turn right onto North Main Street
2.3 mi · 4 min · North Main Street
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6
Turn left
8 m · 2 sec
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7
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Louisiana and O'Fallon.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
South 3rd Street
Turn right onto South 3rd Street
50 mi · 01h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Louisiana and Mostly Sunny near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Louisiana to O'Fallon?
The road trip is about 52.7 miles (84.8 km) and usually takes 01h 04m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Elsberry is a useful midpoint, sitting about 26.3 miles from Louisiana and 26.3 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 48 miles (77.2 km), while the road route adds roughly 4.7 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.01 one way or $14.03 round trip. Estimated CO2 is about 16.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Louisiana and Mostly Sunny near O'Fallon.
Stop Ideas Near Elsberry
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 Elsberry.
Alton
Washington
Kirkwood
Hermann
Flight Path Map
This map shows the direct air route between Louisiana and O'Fallon. Straight-line distance: 47.96 mi (77.19 km).
#1 Louisiana
Town in Pike County, Missouri, United States
| Population | 3,219 |
| Coordinates | 39.4489400, -91.0515300 |
| Altitude | 148 |
| Country | United States |
#2 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
End: (-90.699849, 38.810674)
Estimated Travel Time
Distance: 85 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 45m |
| 40 mph (64.37 km/h) | 01h 19m |
| 50 mph (80.47 km/h) | 01h 03m |
| 60 mph (96.56 km/h) | 00h 52m |
| 70 mph (112.65 km/h) | 00h 45m |
| 80 mph (129 km/h) | 00h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $7.01 | $14.03 |
| Mid-grade | $4.25 | $7.91 | $15.82 |
| Premium | $4.65 | $8.66 | $17.31 |
| Diesel | $5.30 | $9.87 | $19.73 |
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 Missouri · May 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.