How far is O'Fallon, MO from Old Jamestown, MO?
The driving distance from O'Fallon, MO to Old Jamestown, MO is about 26.8 miles (43.1 km), with a travel time of about 00h 41m by car.
- The straight-line flight distance is about 22.4 miles (36 km).
- For a round trip, plan for roughly 01h 23m 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 41m.
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.
A city in St.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between O'Fallon and Old Jamestown.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Old Jamestown.
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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 Drennen Parkway
1.4 km · 1 min · Drennen Parkway
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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 left to continue on I 270 North: Chicago
2556 ft · 36 sec
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8
Continue on I 270 North: Chicago
1270 ft · 18 sec
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9
Keep slight left to continue on I 270 North: Chicago
988 ft · 14 sec
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10
Merge slight left
4.2 mi · 5 min
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11
Take the exit slight right toward US 67
1565 ft · 45 sec
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12
Turn left onto North Lindbergh Boulevard
2.1 mi · 4 min · North Lindbergh Boulevard
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13
Turn left onto Patterson Road
2.3 mi · 5 min · Patterson Road
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14
Continue on Vaile Ave
1.1 mi · 2 min · Vaile Ave
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15
Enter the roundabout and take exit 1 toward Old Halls Ferry Road
6 m · 1 sec · Old Halls Ferry Road
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16
Exit the roundabout onto Old Halls Ferry Road
1368 ft · 38 sec · Old Halls Ferry Road
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17
Turn left
52 m · 12 sec
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18
Keep slight right
1292 ft · 2 min
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between O'Fallon and Old Jamestown.
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.
I 70 East
Merge slight left
13.5 mi · 00h 17m
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.
Chance Showers And Thunderstorms leaving O'Fallon and Showers And Thunderstorms then Chance Showers And Thunderstorms near Old Jamestown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Old Jamestown?
The road trip is about 26.8 miles (43.1 km) and usually takes 00h 41m 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?
Saint Charles is a useful midpoint, sitting about 13.4 miles from O'Fallon and 13.4 miles from Old Jamestown.
How much longer is the road route than the straight-line distance?
The direct path is about 22.4 miles (36 km), while the road route adds roughly 4.4 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 7:06 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.78 one way or $7.55 round trip. Estimated CO2 is about 8.4 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around O'Fallon and Showers And Thunderstorms then Chance Showers And Thunderstorms near Old Jamestown.
Stop Ideas Near Saint Charles
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 Saint Charles.
Kirkwood
Gateway Transportation Center
Alton
Washington
Flight Path Map
This map shows the direct air route between O'Fallon and Old Jamestown. Straight-line distance: 22.39 mi (36.03 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Old Jamestown
This historic settlement in Saint Louis County, Missouri, is nestled along the Missouri River, defining its geographic character.
| Population | 0 |
| Coordinates | 38.8349400, -90.2851100 |
| Altitude | - |
| Country | United States |
End: Old Jamestown (-90.28511, 38.83494)
Estimated Travel Time
Distance: 43 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 53m |
| 40 mph (64.37 km/h) | 00h 40m |
| 50 mph (80.47 km/h) | 00h 32m |
| 60 mph (96.56 km/h) | 00h 26m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.98 | $3.78 | $7.55 |
| Mid-grade | $4.34 | $4.12 | $8.25 |
| Premium | $4.71 | $4.47 | $8.94 |
| Diesel | $5.99 | $5.69 | $11.38 |
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 · Oct 15, 2026