How far is O'Fallon, MO from Wildwood, MO?
Fastest route
The distance between O'Fallon, Missouri, and Wildwood, Missouri, is approximately 20.5 miles (33 kilometers). The fastest route, considering traffic conditions, is via State Hwy K, I-64 E/US-40 E/US-61 S, N Eatherton Rd, and MO-109 S to Old Eatherton Rd in Wildwood.
Directions
- 🚗 Head south on S Main St toward W Elm St, passing by Commerce Bank on the left.
- 🛣️ Continue onto State Hwy K, passing by Arby's on the right, and stay straight to remain on State Hwy K, passing by Advance Auto Parts on the right in 0.5 mi.
- 🚧 Merge onto I-64 E/US-40 E/US-61 S via the ramp to St Louis.
- 🛣️ Take exit 14 toward Chesterfield Airport Rd and continue onto Chesterfield Airport Rd.
- 🚗 Turn right onto Olive Street Rd and continue onto N Eatherton Rd.
- 🛣️ Take Pond Rd and turn right onto Manchester Rd.
- 🚗 Finally, continue onto Old Eatherton Rd and turn right onto Smith School Rd, then right again onto Manchester Rd.
Tips & Suggestions
- 🚦 Check traffic conditions before starting your journey to choose the best route.
- ⛽ Ensure your vehicle has enough fuel for the trip.
- 🗺️ Consider using a navigation app or GPS device for real-time guidance.
- ☕ Take a short break if the journey is long to stay alert and refreshed.
- 🚘 Observe speed limits and traffic rules for a safe trip.
- 🚧 Be aware of any road closures or construction along the way.
- 🕰️ Allow some extra time in case of unexpected delays or traffic congestion.
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 36m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
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 Wildwood.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Wildwood.
-
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
3.7 mi · 5 min · Avenue of the Saints
-
7
Take the exit slight right toward Chesterfield Airport Road
2700 ft · 58 sec
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8
Continue on Chesterfield Airport Road
110 m · 7 sec · Chesterfield Airport Road
-
9
Turn right onto Olive Street Road
64 m · 5 sec
-
10
Turn right onto Olive Street Road
1.5 km · 2 min · Olive Street Road
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11
Continue on North Eatherton Road
2.4 mi · 5 min · North Eatherton Road
-
12
Enter the roundabout and take exit 2 toward the route
21 m · 1 sec
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13
Exit the roundabout
4.3 mi · 7 min
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14
Enter the roundabout and take exit 2 toward the route
29 m · 2 sec
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15
Exit the roundabout
2098 ft · 45 sec
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16
Enter the roundabout and take exit 2 toward MO 100 West: Gray Summit
23 m · 2 sec
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17
Exit the roundabout onto MO 100 West: Gray Summit
1202 ft · 33 sec
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18
Merge slight left
2494 ft · 44 sec
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19
Turn left onto Pond Road
1873 ft · 56 sec · Pond Road
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20
At the end of the road, turn right onto Manchester Road
2066 ft · 53 sec · Manchester Road
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21
Turn right
35 m · 9 sec
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22
Turn left
63 m · 16 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 Wildwood.
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.
North Eatherton Road
Exit the roundabout
4.27 mi · 00h 07m
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 Wildwood.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Wildwood?
The road trip is about 21.3 miles (34.2 km) and usually takes 00h 36m 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 10.6 miles from O'Fallon and 10.6 miles from Wildwood.
How much longer is the road route than the straight-line distance?
The direct path is about 15.8 miles (25.5 km), while the road route adds roughly 5.5 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 7:18 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.83 one way or $5.66 round trip. Estimated CO2 is about 6.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Mostly Sunny near Wildwood.
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 Wildwood. Straight-line distance: 15.86 mi (25.53 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Wildwood
City in New Jersey
| Population | 35,460 |
| Coordinates | 38.5828300, -90.6629000 |
| Altitude | 230 |
| Country | United States |
End: (-90.662289, 38.582821)
Estimated Travel Time
Distance: 34 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 42m |
| 40 mph (64.37 km/h) | 00h 31m |
| 50 mph (80.47 km/h) | 00h 25m |
| 60 mph (96.56 km/h) | 00h 21m |
| 70 mph (112.65 km/h) | 00h 18m |
| 80 mph (129 km/h) | 00h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.83 | $5.66 |
| Mid-grade | $4.25 | $3.19 | $6.38 |
| Premium | $4.65 | $3.49 | $6.98 |
| Diesel | $5.30 | $3.98 | $7.96 |
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 · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.