How far is O'Fallon, MO from Cedar Hill, MO?
The driving distance from O'Fallon, MO to Cedar Hill, MO is about 45 miles (72.4 km), with a travel time of about 01h 06m by car.
- The straight-line flight distance is about 31.8 miles (51.1 km).
- For a round trip, plan for roughly 02h 13m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
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 06m.
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 Missouri
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between O'Fallon and Cedar Hill.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Cedar Hill.
-
1
Start on the route
8 m · 7 sec
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2
Turn left onto South Main Street
2865 ft · 1 min · South Main Street
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3
Continue straight
3.1 mi · 6 min
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4
Continue straight
3.4 mi · 5 min
-
5
Take the ramp slight right toward I 64 East, US 40 East, US 61 South
1523 ft · 22 sec
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6
Merge slight left onto Avenue of the Saints
12.3 mi · 15 min · Avenue of the Saints
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7
Take the exit slight right toward MO 141
1368 ft · 34 sec
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8
Turn right onto MO 141: Manchester
56 m · 6 sec
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9
Merge slight left
8.5 mi · 13 min
-
10
Turn right onto Hawkins Road
1.6 mi · 4 min · Hawkins Road
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11
Continue on New Sugar Creek Road
1 mi · 2 min · New Sugar Creek Road
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12
Take the ramp slight right toward MO 30 West
56 m · 3 sec
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13
Merge slight left
13.3 mi · 17 min
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14
Take the exit slight left toward MO BB
546 ft · 15 sec
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15
Turn slight left
2032 ft · 55 sec
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16
Turn left onto Cedar Hill Road
116 m · 9 sec · Cedar Hill Road
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17
Turn right
16 m · 4 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between O'Fallon and Cedar Hill.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
MO 30 West
Merge slight left
13.3 mi · 00h 17m
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 O'Fallon and Sunny near Cedar Hill.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Cedar Hill?
The road trip is about 45 miles (72.4 km) and usually takes 01h 06m 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?
Manchester is a useful midpoint, sitting about 22.5 miles from O'Fallon and 22.5 miles from Cedar Hill.
How much longer is the road route than the straight-line distance?
The direct path is about 31.8 miles (51.1 km), while the road route adds roughly 13.2 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 CST. If you want a more comfortable same-day return, try to leave by 4:16 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.00 one way or $12.00 round trip. Estimated CO2 is about 14.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Sunny near Cedar Hill.
Stop Ideas Near Manchester
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 Manchester.
Kirkwood
Gateway Transportation Center
Washington
Alton
Flight Path Map
This map shows the direct air route between O'Fallon and Cedar Hill. Straight-line distance: 31.75 mi (51.1 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Cedar Hill
Cedar Hill is a place in Missouri, United States.
| Population | 0 |
| Coordinates | 38.3533900, -90.6412400 |
| Altitude | 168 |
| Country | United States |
End: Cedar Hill (-90.64124, 38.35339)
Estimated Travel Time
Distance: 72 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 29m |
| 40 mph (64.37 km/h) | 01h 07m |
| 50 mph (80.47 km/h) | 00h 53m |
| 60 mph (96.56 km/h) | 00h 44m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.00 | $12.00 |
| Mid-grade | $4.15 | $6.60 | $13.19 |
| Premium | $4.51 | $7.18 | $14.35 |
| Diesel | $6.00 | $9.53 | $19.07 |
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 · Nov 06, 2026