How far is O'Fallon, MO from Maryville, MO?
The driving distance from O'Fallon, MO to Maryville, MO is about 313.2 miles (504.1 km), with a travel time of about 05h 55m by car.
- The straight-line flight distance is about 246.2 miles (396.2 km).
- For a round trip, plan for roughly 11h 51m 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 05h 55m.
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 Lafayette and Saline counties in the U.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between O'Fallon and Maryville.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Maryville.
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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 I 70 East
10 m · 6 sec
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4
Turn sharp left onto South Main Street
87 m · 11 sec · South Main Street
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5
Turn left onto West Terra Lane
576 ft · 12 sec · West Terra Lane
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6
Take the ramp straight toward I 70 West
146 m · 7 sec
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7
Merge slight left
200.7 mi · 3 hr 46 min
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8
Continue on Truman/Eisenhower Presidential Highway
2.7 mi · 3 min · Truman/Eisenhower Presidential Highway
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9
Continue on Clifton J. Scott Memorial Highway
1.8 mi · 2 min · Clifton J. Scott Memorial Highway
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10
Continue on Truman/Eisenhower Presidential Highway
2.9 mi · 3 min · Truman/Eisenhower Presidential Highway
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11
Continue on George Brett Super Highway
1.4 km · 58 sec · George Brett Super Highway
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12
Take the exit slight right toward I 435 North, US 24 East: Des Moines
1.1 mi · 2 min
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13
Merge slight left onto Lamar Hunt Memorial Highway
7.8 mi · 9 min · Lamar Hunt Memorial Highway
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14
Continue on I435 N
1.3 mi · 1 min · I435 N
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15
Continue straight
20.9 mi · 22 min
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16
Keep slight left to continue on I 29 North, US 71 North: Saint Joseph
37.1 mi · 40 min
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17
Continue straight
2.7 mi · 3 min
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18
Take the exit slight right toward US 71 North, US 59 North: Maryville
30.3 mi · 35 min
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19
Turn left
2.3 mi · 4 min
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20
Turn right onto East 1st Street
41 m · 3 sec · East 1st Street
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21
Arrive at your destination
0 m · 1 sec · East 1st Street
Car Route Details
A richer read on the saved driving route between O'Fallon and Maryville.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 70 West
Merge slight left
201 mi · 03h 46m
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 leaving O'Fallon and Sunny near Maryville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Maryville?
The road trip is about 313.2 miles (504.1 km) and usually takes 05h 55m 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?
Emma is a useful midpoint, sitting about 156.4 miles from O'Fallon and 156.8 miles from Maryville.
How much longer is the road route than the straight-line distance?
The direct path is about 246.2 miles (396.2 km), while the road route adds roughly 67 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 5:08 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $41.67 one way or $83.34 round trip. Estimated CO2 is about 98.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around O'Fallon and Sunny near Maryville.
Stop Ideas Near Emma
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 Emma.
Warrensburg
Sedalia
Lee's Summit
Independence
Flight Path Map
This map shows the direct air route between O'Fallon and Maryville. Straight-line distance: 246.2 mi (396.22 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Maryville
City in Nodaway County, Missouri, United States
| Population | 11,530 |
| Coordinates | 40.3461000, -94.8724700 |
| Altitude | 351 |
| Country | United States |
End: Maryville (-94.87247, 40.3461)
Estimated Travel Time
Distance: 504 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 26m |
| 40 mph (64.37 km/h) | 07h 49m |
| 50 mph (80.47 km/h) | 06h 15m |
| 60 mph (96.56 km/h) | 05h 13m |
| 70 mph (112.65 km/h) | 04h 28m |
| 80 mph (129 km/h) | 03h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $41.67 | $83.34 |
| Mid-grade | $4.25 | $47.00 | $93.99 |
| Premium | $4.65 | $51.43 | $102.85 |
| Diesel | $5.30 | $58.61 | $117.22 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.