How far is O'Fallon, MO from Sweet Springs, MO?
The driving distance from O'Fallon, MO to Sweet Springs, MO is about 152.5 miles (245.4 km), with a travel time of about 02h 56m by car.
- The straight-line flight distance is about 146.4 miles (235.6 km).
- For a round trip, plan for roughly 05h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 02h 56m.
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.
Human settlement in Callaway County, Missouri, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Clear
Driving Route Map
The map below follows the saved road route between O'Fallon and Sweet Springs.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Sweet Springs.
-
1
Start on the route
8 m · 7 sec
-
2
Turn left onto South Main Street
3116 ft · 2 min · South Main Street
-
3
Turn left onto I 70 East
10 m · 6 sec
-
4
Turn sharp left onto South Main Street
87 m · 11 sec · South Main Street
-
5
Turn left onto West Terra Lane
576 ft · 12 sec · West Terra Lane
-
6
Take the ramp straight toward I 70 West
146 m · 7 sec
-
7
Merge slight left
150.5 mi · 2 hr 52 min
-
8
Take the exit slight right toward MO 127: Sweet Springs, Mount Leonard
864 ft · 23 sec
-
9
Turn left
1.6 km · 2 min
-
10
Arrive at your destination
0 m · 1 sec · South Locust Street
Car Route Details
A richer read on the saved driving route between O'Fallon and Sweet Springs.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Merge slight left
151 mi · 02h 52m
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.
Clear leaving O'Fallon and Clear near Sweet Springs.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Sweet Springs?
The road trip is about 152.5 miles (245.4 km) and usually takes 02h 56m 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?
Kingdom City is a useful midpoint, sitting about 76.1 miles from O'Fallon and 76.4 miles from Sweet Springs.
How much longer is the road route than the straight-line distance?
The direct path is about 146.4 miles (235.6 km), while the road route adds roughly 6.1 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 12:36 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.29 one way or $40.58 round trip. Estimated CO2 is about 47.8 kg one way.
What should you check before leaving?
Before you leave, expect Clear around O'Fallon and Clear near Sweet Springs.
Stop Ideas Near Kingdom 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 Kingdom City.
Jefferson City
Hermann
Washington
Sedalia
Flight Path Map
This map shows the direct air route between O'Fallon and Sweet Springs. Straight-line distance: 146.4 mi (235.6 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Sweet Springs
City in Saline County, Missouri, United States
| Population | 1,415 |
| Coordinates | 38.9636300, -93.4149300 |
| Altitude | 217 |
| Country | United States |
End: Sweet Springs (-93.41493, 38.96363)
Estimated Travel Time
Distance: 245 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 04m |
| 40 mph (64.37 km/h) | 03h 48m |
| 50 mph (80.47 km/h) | 03h 03m |
| 60 mph (96.56 km/h) | 02h 32m |
| 70 mph (112.65 km/h) | 02h 10m |
| 80 mph (129 km/h) | 01h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.29 | $40.58 |
| Mid-grade | $4.25 | $22.88 | $45.76 |
| Premium | $4.65 | $25.04 | $50.08 |
| Diesel | $5.30 | $28.54 | $57.07 |
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 · May 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.