How far is Jefferson City, MO from O'Fallon, MO?
Fastest route
The distance from Jefferson City, Missouri to O'Fallon, Missouri is approximately 101 miles (about 162 kilometers). The estimated travel time is 1 hour and 27 minutes. The fastest route currently is via US-54 E and I-70 E.
Directions
- 🚗 Head southeast on W Wall Way toward Jefferson St.
- 🚗 Turn right at the 1st cross street onto Jefferson St.
- 🚗 Turn right at the 1st cross street onto W McCarty St.
- 🚗 Turn right to merge onto US-54 E/US-63 N.
- 🚗 Continue to follow US-54 E.
- 🚗 Turn right to merge onto I-70 E/US-40 E toward St Louis.
- 🚗 Take exit 217 for State Hwy K/Main St toward O'Fallon.
- 🚗 Keep left at the fork to continue toward State Hwy K/Main St.
- 🚗 Turn left onto State Hwy K/Main St.
- 🚗 Continue to follow Main St. Pass by Firestone Complete Auto Care (on the right in 0.2 mi).
Tips & Suggestions
- 🛣️ Plan your trip ahead of time and check for any potential road closures or construction to avoid delays.
- 📱 Consider using a GPS navigation app or device to help you stay on the correct route.
- ⛽ Ensure your vehicle has enough fuel for the journey, especially if there are long stretches without gas stations.
- ☕ Take breaks during the drive to stay refreshed and avoid fatigue. Consider stopping at rest areas or scenic spots.
- 🚓 Observe the speed limits and traffic regulations to ensure a safe journey.
- 📞 Share your travel plans with a friend or family member, so they know your route and estimated arrival time.
- 🌆 If possible, time your travel to avoid rush hours or heavy traffic periods for a smoother trip.
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 31m.
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, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Jefferson City and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Jefferson City and O'Fallon.
-
1
Start on East Wall Way
47 m · 13 sec · East Wall Way
-
2
Turn right onto Jefferson Street
77 m · 15 sec · Jefferson Street
-
3
Turn right onto West McCarty Street
1 km · 2 min · West McCarty Street
-
4
Take the ramp right toward US 54 East, US 63 North: Fulton, Columbia
713 ft · 18 sec
-
5
Merge slight left
29.6 mi · 32 min
-
6
Take the exit slight right toward I 70 East, US 40 East: Saint Louis
1220 ft · 15 sec
-
7
Merge slight left onto Dwight D. Eisenhower Highway
69.2 mi · 1 hr 20 min · Dwight D. Eisenhower Highway
-
8
Take the exit slight right toward MO K: O'Fallon
1765 ft · 43 sec
-
9
Turn straight onto Drennen Parkway
46 m · 3 sec · Drennen Parkway
-
10
Keep slight right to continue on Drennen Parkway
51 m · 6 sec · Drennen Parkway
-
11
Turn slight left onto MO K: O'Fallon
19 m · 3 sec
-
12
Continue on South Main Street
3115 ft · 2 min · South Main Street
-
13
Turn right
8 m · 2 sec
-
14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Jefferson City and O'Fallon.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
69.2 mi · 01h 20m
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.
Slight Chance Rain Showers then Chance Showers And Thunderstorms leaving Jefferson City and Mostly Sunny near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Jefferson City to O'Fallon?
The road trip is about 100.9 miles (162.4 km) and usually takes 01h 31m 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?
Montgomery City is a useful midpoint, sitting about 50.4 miles from Jefferson City and 50.5 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 81.1 miles (130.5 km), while the road route adds roughly 19.8 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 3:26 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.42 one way or $26.85 round trip. Estimated CO2 is about 31.6 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers then Chance Showers And Thunderstorms around Jefferson City and Mostly Sunny near O'Fallon.
Stop Ideas Near Montgomery City
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 Montgomery City.
Hermann
Washington
Jefferson City
Kirkwood
Flight Path Map
This map shows the direct air route between Jefferson City and O'Fallon. Straight-line distance: 81.1 mi (130.51 km).
#1 Jefferson City
The capital of Missouri.
| Population | 42,708 |
| Coordinates | 38.5767000, -92.1735200 |
| Altitude | 192 |
| Country | United States |
#2 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
End: (-90.699849, 38.810674)
Estimated Travel Time
Distance: 162 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 21m |
| 40 mph (64.37 km/h) | 02h 31m |
| 50 mph (80.47 km/h) | 02h 01m |
| 60 mph (96.56 km/h) | 01h 40m |
| 70 mph (112.65 km/h) | 01h 26m |
| 80 mph (129 km/h) | 01h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.42 | $26.85 |
| Mid-grade | $4.25 | $15.14 | $30.28 |
| Premium | $4.65 | $16.57 | $33.14 |
| Diesel | $5.30 | $18.88 | $37.76 |
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.