How far is O'Fallon, MO from Campbell, MO?
The driving distance from O'Fallon, MO to Campbell, MO is about 202 miles (325.1 km), with a travel time of about 04h 08m by car.
- The straight-line flight distance is about 163.7 miles (263.5 km).
- For a round trip, plan for roughly 08h 16m 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 08m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Sunny
Driving Route Map
The map below follows the saved road route between O'Fallon and Campbell.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Campbell.
-
1
Start on the route
8 m · 7 sec
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2
Turn left onto South Main Street
3116 ft · 2 min · South Main Street
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3
Turn left onto Drennen Parkway
1.4 km · 1 min · Drennen Parkway
-
4
Take the ramp slight left toward I 70 East: Saint Louis
133 m · 6 sec
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5
Merge slight left
13.5 mi · 17 min
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6
Take the exit slight right toward I 270: Chicago, Memphis
872 ft · 12 sec
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7
Keep slight right to continue on I 270 South: Memphis
2339 ft · 33 sec
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8
Continue on I 270 South: Memphis
723 ft · 10 sec
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9
Merge slight left
19 mi · 24 min
-
10
Take the exit slight right toward I 55, US 61, US 67: Saint Louis, Memphis, Lemay Ferry Road
1911 ft · 27 sec
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11
Keep slight right to continue on I 55 South: Memphis
2031 ft · 44 sec
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12
Merge slight left onto Rosa Parks Highway
1.5 mi · 2 min · Rosa Parks Highway
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13
Continue on Officer Thomas G. Smith, Jr. Memorial Highway
1.8 mi · 2 min · Officer Thomas G. Smith, Jr. Memorial Highway
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14
Continue on Police Officer Steven Jarvis Memorial Highway
18.3 mi · 20 min · Police Officer Steven Jarvis Memorial Highway
-
15
Take the exit slight right toward US 67 South: Farmington, Poplar Bluff
914 ft · 20 sec
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16
Keep slight left
729 ft · 18 sec
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17
Enter the roundabout and take exit 1 toward the route
9 m · 1 sec
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18
Exit the roundabout
113 mi · 2 hr 10 min
-
19
Turn straight onto North Westwood Boulevard
1.6 mi · 3 min · North Westwood Boulevard
-
20
Continue on State Street
1396 ft · 26 sec · State Street
-
21
Continue on North Westwood Boulevard
2.3 mi · 4 min · North Westwood Boulevard
-
22
Turn slight left
41 m · 7 sec
-
23
Turn slight left
26.5 mi · 39 min
-
24
Turn right onto Frisco Street
2977 ft · 1 min · Frisco Street
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25
Turn left onto Grand Avenue
807 ft · 14 sec · Grand Avenue
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26
Arrive at your destination
0 m · 1 sec · Grand Avenue
Car Route Details
A richer read on the saved driving route between O'Fallon and Campbell.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 67 South
Exit the roundabout
113 mi · 02h 10m
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 O'Fallon and Slight Chance Rain Showers then Sunny near Campbell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Campbell?
The road trip is about 202 miles (325.1 km) and usually takes 04h 08m 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?
Farmington is a useful midpoint, sitting about 101.1 miles from O'Fallon and 101 miles from Campbell.
How much longer is the road route than the straight-line distance?
The direct path is about 163.7 miles (263.5 km), while the road route adds roughly 38.3 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 8:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.89 one way or $53.77 round trip. Estimated CO2 is about 63.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around O'Fallon and Slight Chance Rain Showers then Sunny near Campbell.
Stop Ideas Near Farmington
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 Farmington.
Kirkwood
Gateway Transportation Center
Washington
Carbondale station
Flight Path Map
This map shows the direct air route between O'Fallon and Campbell. Straight-line distance: 163.71 mi (263.47 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Campbell
City in Dunklin County, Missouri, United States
| Population | 1,792 |
| Coordinates | 36.4933900, -90.0750900 |
| Altitude | 96 |
| Country | United States |
End: Campbell (-90.07509, 36.49339)
Estimated Travel Time
Distance: 325 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 43m |
| 40 mph (64.37 km/h) | 05h 03m |
| 50 mph (80.47 km/h) | 04h 02m |
| 60 mph (96.56 km/h) | 03h 22m |
| 70 mph (112.65 km/h) | 02h 53m |
| 80 mph (129 km/h) | 02h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $26.89 | $53.77 |
| Mid-grade | $4.25 | $30.32 | $60.65 |
| Premium | $4.65 | $33.18 | $66.37 |
| Diesel | $5.30 | $37.82 | $75.64 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.