How far is Riverside, MO from O'Fallon, MO?
The driving distance from Riverside, MO to O'Fallon, MO is about 223.7 miles (360 km), with a travel time of about 03h 28m by car.
- The straight-line flight distance is about 211.6 miles (340.6 km).
- For a round trip, plan for roughly 06h 57m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 28m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Cooper County, Missouri, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Slight Chance Showers And Thunderstorms
Sunny
Driving Route Map
The map below follows the saved road route between Riverside and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Riverside and O'Fallon.
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1
Start on the route
47 m · 13 sec
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2
At the end of the road, turn uturn onto Northwest Gateway Avenue
35 m · 9 sec · Northwest Gateway Avenue
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3
Turn straight onto US 69 North
95 m · 13 sec
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4
Turn sharp left onto Northwest Vivion Road
48 m · 7 sec · Northwest Vivion Road
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5
Turn left onto Northwest Gateway Avenue
2005 ft · 49 sec · Northwest Gateway Avenue
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6
Continue on Northwest Platte Road
1.4 km · 2 min · Northwest Platte Road
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7
Enter the roundabout and take exit 2 toward Northwest Briarcliff Parkway
18 m · 1 sec · Northwest Briarcliff Parkway
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8
Exit the roundabout onto Northwest Briarcliff Parkway
121 m · 9 sec · Northwest Briarcliff Parkway
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9
Enter the roundabout and take exit 3 toward MO 9 South: North Kansas City
146 m · 9 sec
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10
Exit the roundabout onto MO 9 South: North Kansas City
1090 ft · 27 sec
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11
Merge slight left
1586 ft · 25 sec
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12
Take the exit slight right toward US 169 South: Kansas City
1558 ft · 39 sec
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13
Merge slight left
3.5 mi · 5 min
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14
Keep slight left to continue on Broadway Boulevard
536 ft · 18 sec · Broadway Boulevard
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15
Turn left onto West 6th Street
1438 ft · 26 sec · West 6th Street
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16
Take the ramp slight left toward I 35 North, I 70 East, US 24 East, US 40 East
721 ft · 16 sec
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17
Continue on George Brett Super Highway
2089 ft · 39 sec · George Brett Super Highway
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18
Keep slight right to continue on George Brett Super Highway
2797 ft · 58 sec · George Brett Super Highway
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19
Keep slight left to continue on George Brett Super Highway
7.1 mi · 10 min · George Brett Super Highway
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20
Continue on Truman/Eisenhower Presidential Highway
2.9 mi · 3 min · Truman/Eisenhower Presidential Highway
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21
Continue on Clifton J. Scott Memorial Highway
1.8 mi · 2 min · Clifton J. Scott Memorial Highway
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22
Continue on Truman/Eisenhower Presidential Highway
2.6 mi · 3 min · Truman/Eisenhower Presidential Highway
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23
Continue on Dwight D. Eisenhower Highway
52.5 mi · 57 min · Dwight D. Eisenhower Highway
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24
Continue on U.S. Submarine Veterans' Memorial Highway
32 mi · 34 min · U.S. Submarine Veterans' Memorial Highway
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25
Keep slight left to continue on U.S. Submarine Veterans' Memorial Highway
22.4 mi · 24 min · U.S. Submarine Veterans' Memorial Highway
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26
Continue on Dwight D. Eisenhower Highway
1.8 mi · 2 min · Dwight D. Eisenhower Highway
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27
Continue on Highway Patrol Sgt. Benjamin Booth Memorial Highway
1.6 mi · 2 min · Highway Patrol Sgt. Benjamin Booth Memorial Highway
-
28
Continue on Sheriff Roger I. Wilson Memorial Highway
1.9 mi · 2 min · Sheriff Roger I. Wilson Memorial Highway
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29
Continue on Dwight D. Eisenhower Highway
88.2 mi · 1 hr 44 min · Dwight D. Eisenhower Highway
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30
Take the exit slight right toward MO K: O'Fallon
1765 ft · 43 sec
-
31
Turn straight onto Drennen Parkway
46 m · 3 sec · Drennen Parkway
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32
Keep slight right to continue on Drennen Parkway
51 m · 6 sec · Drennen Parkway
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33
Turn slight left onto MO K: O'Fallon
19 m · 3 sec
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34
Continue on South Main Street
3115 ft · 2 min · South Main Street
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35
Turn right
8 m · 2 sec
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36
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Riverside 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
Continue on Dwight D. Eisenhower Highway
88.2 mi · 01h 44m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny then Slight Chance Showers And Thunderstorms leaving Riverside and Sunny near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Riverside to O'Fallon?
The road trip is about 223.7 miles (360 km) and usually takes 03h 28m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Boonville is a useful midpoint, sitting about 111.4 miles from Riverside and 112.2 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 211.6 miles (340.6 km), while the road route adds roughly 12.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:02 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.75 one way or $59.51 round trip. Estimated CO2 is about 70.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Slight Chance Showers And Thunderstorms around Riverside and Sunny near O'Fallon.
Stop Ideas Near Boonville
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 Boonville.
Sedalia
Jefferson City
Warrensburg
Hermann
Flight Path Map
This map shows the direct air route between Riverside and O'Fallon. Straight-line distance: 211.65 mi (340.61 km).
#1 Riverside
City in Platte County, Missouri, United States
| Population | 3,150 |
| Coordinates | 39.1775000, -94.6130100 |
| Altitude | 236 |
| 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: 360 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 27m |
| 40 mph (64.37 km/h) | 05h 35m |
| 50 mph (80.47 km/h) | 04h 28m |
| 60 mph (96.56 km/h) | 03h 43m |
| 70 mph (112.65 km/h) | 03h 11m |
| 80 mph (129 km/h) | 02h 47m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $29.75 | $59.51 |
| Mid-grade | $4.25 | $33.56 | $67.11 |
| Premium | $4.65 | $36.72 | $73.44 |
| Diesel | $5.30 | $41.85 | $83.70 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.