How far is O'Fallon, MO from Belle, MO?
The driving distance from O'Fallon, MO to Belle, MO is about 84.1 miles (135.4 km), with a travel time of about 01h 59m by car.
- The straight-line flight distance is about 66 miles (106.2 km).
- For a round trip, plan for roughly 03h 59m 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 59m.
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 and county seat of Franklin County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between O'Fallon and Belle.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Belle.
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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 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
8 mi · 10 min
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8
Take the exit slight right toward MO Z
812 ft · 23 sec
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9
Enter the roundabout and take exit 3 toward South Church Street
74 m · 11 sec · South Church Street
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10
Exit the roundabout onto South Church Street
1 mi · 2 min · South Church Street
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11
Continue straight
1.4 mi · 2 min
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12
Continue straight
4.9 mi · 7 min
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13
Turn right
4.9 mi · 8 min
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14
At the end of the road, turn left
3.1 mi · 4 min
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15
Continue straight
3.6 mi · 6 min
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16
Continue straight
1.1 km · 2 min
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17
At the end of the road, turn left
11.1 mi · 17 min
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18
Turn right
24.9 mi · 30 min
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19
Turn left
19.4 mi · 29 min
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20
Turn right onto 5th Street
71 m · 12 sec · 5th Street
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21
Turn right onto South Alvarado Avenue
104 m · 6 sec · South Alvarado Avenue
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22
Turn right
42 m · 6 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between O'Fallon and Belle.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn right
24.9 mi · 00h 30m
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.
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely leaving O'Fallon and Chance Showers And Thunderstorms near Belle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Belle?
The road trip is about 84.1 miles (135.4 km) and usually takes 01h 59m 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?
Union is a useful midpoint, sitting about 42.1 miles from O'Fallon and 42.1 miles from Belle.
How much longer is the road route than the straight-line distance?
The direct path is about 66 miles (106.2 km), while the road route adds roughly 18.1 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 2:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.20 one way or $22.40 round trip. Estimated CO2 is about 26.4 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Showers And Thunderstorms Likely around O'Fallon and Chance Showers And Thunderstorms near Belle.
Stop Ideas Near Union
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 Union.
Washington
Hermann
Kirkwood
Gateway Transportation Center
Flight Path Map
This map shows the direct air route between O'Fallon and Belle. Straight-line distance: 66 mi (106.21 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Belle
City in Missouri, United States
| Population | 1,489 |
| Coordinates | 38.2858800, -91.7204400 |
| Altitude | 313 |
| Country | United States |
End: Belle (-91.72044, 38.28588)
Estimated Travel Time
Distance: 135 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 48m |
| 40 mph (64.37 km/h) | 02h 06m |
| 50 mph (80.47 km/h) | 01h 40m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.20 | $22.40 |
| Mid-grade | $4.25 | $12.63 | $25.26 |
| Premium | $4.65 | $13.82 | $27.64 |
| Diesel | $5.30 | $15.75 | $31.51 |
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 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.