How far is O'Fallon, MO from Clinton, MO?
The driving distance from O'Fallon, MO to Clinton, MO is about 203.6 miles (327.6 km), with a travel time of about 04h 12m by car.
- The straight-line flight distance is about 169 miles (272 km).
- For a round trip, plan for roughly 08h 25m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 04h 12m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between O'Fallon and Clinton.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Clinton.
-
1
Start on the route
8 m · 7 sec
-
2
Turn left onto South Main Street
3116 ft · 2 min · South Main Street
-
3
Turn left onto I 70 East
10 m · 6 sec
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4
Turn sharp left onto South Main Street
87 m · 11 sec · South Main Street
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5
Turn left onto West Terra Lane
576 ft · 12 sec · West Terra Lane
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6
Take the ramp straight toward I 70 West
146 m · 7 sec
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7
Merge slight left
139.5 mi · 2 hr 40 min
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8
Take the exit slight right toward US 65 South: Sedalia
1094 ft · 37 sec
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9
Merge slight left
30.5 mi · 38 min
-
10
Take the exit right toward MO 52 West: Windsor
57 m · 5 sec
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11
Turn right onto Whiteman Road
30.4 mi · 45 min · Whiteman Road
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12
Turn straight onto Price Lane
1.4 km · 2 min · Price Lane
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13
Continue on East Green Street
1.5 km · 3 min · East Green Street
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14
Turn left onto North Main Street
146 m · 15 sec · North Main Street
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15
Turn right onto West Franklin Street
145 m · 26 sec · West Franklin Street
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16
Turn left onto South Washington Street
785 ft · 35 sec · South Washington Street
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17
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between O'Fallon and Clinton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Merge slight left
139 mi · 02h 40m
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.
Mostly Sunny leaving O'Fallon and Partly Sunny then Slight Chance Showers And Thunderstorms near Clinton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Clinton?
The road trip is about 203.6 miles (327.6 km) and usually takes 04h 12m 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?
Rocheport is a useful midpoint, sitting about 101.7 miles from O'Fallon and 102 miles from Clinton.
How much longer is the road route than the straight-line distance?
The direct path is about 169 miles (272 km), while the road route adds roughly 34.6 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 CDT. If you want a more comfortable same-day return, try to leave by 8:34 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.08 one way or $54.15 round trip. Estimated CO2 is about 63.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Partly Sunny then Slight Chance Showers And Thunderstorms near Clinton.
Stop Ideas Near Rocheport
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 Rocheport.
Jefferson City
Sedalia
Hermann
Warrensburg
Flight Path Map
This map shows the direct air route between O'Fallon and Clinton. Straight-line distance: 169.03 mi (272.02 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Clinton
City in Missouri, United States
| Population | 9,043 |
| Coordinates | 38.3686300, -93.7782700 |
| Altitude | 245 |
| Country | United States |
End: Clinton (-93.77827, 38.36863)
Estimated Travel Time
Distance: 328 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 47m |
| 40 mph (64.37 km/h) | 05h 05m |
| 50 mph (80.47 km/h) | 04h 04m |
| 60 mph (96.56 km/h) | 03h 23m |
| 70 mph (112.65 km/h) | 02h 54m |
| 80 mph (129 km/h) | 02h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.08 | $54.15 |
| Mid-grade | $4.25 | $30.54 | $61.07 |
| Premium | $4.65 | $33.42 | $66.83 |
| Diesel | $5.30 | $38.08 | $76.17 |
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 · Apr 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.