How far is O'Fallon, MO from Winchester, MO?
The driving distance from O'Fallon, MO to Winchester, MO is about 24.5 miles (39.5 km), with a travel time of about 00h 37m by car.
- The straight-line flight distance is about 17.8 miles (28.7 km).
- For a round trip, plan for roughly 01h 15m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 37m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Village in the 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 O'Fallon and Winchester.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Winchester.
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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
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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
3.2 mi · 5 min
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10
Take the exit slight right toward MO 100
908 ft · 25 sec
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11
Keep slight right to continue on MO 100
93 m · 10 sec
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12
Merge slight left onto Manchester Road
1 mi · 2 min · Manchester Road
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13
Turn left onto Solley Drive
792 ft · 41 sec · Solley Drive
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14
Keep slight left
74 m · 18 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between O'Fallon and Winchester.
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.
Avenue of the Saints
Merge slight left onto Avenue of the Saints
12.3 mi · 00h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving O'Fallon and Mostly Sunny near Winchester.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Winchester?
The road trip is about 24.5 miles (39.5 km) and usually takes 00h 37m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Weldon Spring Heights is a useful midpoint, sitting about 12.2 miles from O'Fallon and 12.3 miles from Winchester.
How much longer is the road route than the straight-line distance?
The direct path is about 17.8 miles (28.7 km), while the road route adds roughly 6.7 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:14 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.28 one way or $6.56 round trip. Estimated CO2 is about 7.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Mostly Sunny near Winchester.
Stop Ideas Near Weldon Spring Heights
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall Park
City of O'Fallon
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Weldon Spring Heights.
Kirkwood
Washington
Gateway Transportation Center
Alton
Flight Path Map
This map shows the direct air route between O'Fallon and Winchester. Straight-line distance: 17.82 mi (28.68 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Winchester
City in St.
| Population | 1,509 |
| Coordinates | 38.5903300, -90.5279000 |
| Altitude | 190 |
| Country | United States |
End: Winchester (-90.5279, 38.59033)
Estimated Travel Time
Distance: 39 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 36m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $3.28 | $6.56 |
| Mid-grade | $4.25 | $3.70 | $7.40 |
| Premium | $4.65 | $4.05 | $8.10 |
| Diesel | $5.30 | $4.61 | $9.23 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.