How far is O'Fallon, MO from Savannah, MO?
The driving distance from O'Fallon, MO to Savannah, MO is about 284.1 miles (457.2 km), with a travel time of about 05h 23m by car.
- The straight-line flight distance is about 234 miles (376.6 km).
- For a round trip, plan for roughly 10h 46m 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 23m.
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 Pettis County, Missouri, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between O'Fallon and Savannah.
Turn-by-Turn Driving Directions
Step-by-step road directions between O'Fallon and Savannah.
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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
36.7 mi · 40 min
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17
Take the exit slight right toward I 29 Business, US 59 South, US 71 Business: Savannah
1386 ft · 24 sec
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18
Turn right
5.7 mi · 8 min
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19
Turn left onto East Price Street
2385 ft · 1 min · East Price Street
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20
Turn right onto South 5th Street
842 ft · 37 sec · South 5th Street
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21
Arrive at your destination
0 m · 1 sec · North 5th Street
Car Route Details
A richer read on the saved driving route between O'Fallon and Savannah.
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
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.
Mostly Sunny leaving O'Fallon and Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Savannah.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from O'Fallon to Savannah?
The road trip is about 284.1 miles (457.2 km) and usually takes 05h 23m 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?
Houstonia is a useful midpoint, sitting about 141.9 miles from O'Fallon and 142.2 miles from Savannah.
How much longer is the road route than the straight-line distance?
The direct path is about 234 miles (376.6 km), while the road route adds roughly 50.1 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 6:14 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $37.82 one way or $75.65 round trip. Estimated CO2 is about 89.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around O'Fallon and Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely near Savannah.
Stop Ideas Near Houstonia
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 Houstonia.
Sedalia
Warrensburg
Lee's Summit
Independence
Flight Path Map
This map shows the direct air route between O'Fallon and Savannah. Straight-line distance: 234 mi (376.59 km).
#1 O'Fallon
The most populous city in St.
| Population | 89,769 |
| Coordinates | 38.8106100, -90.6998500 |
| Altitude | 165 |
| Country | United States |
#2 Savannah
City in Missouri, United States
| Population | 5,168 |
| Coordinates | 39.9416600, -94.8302500 |
| Altitude | 337 |
| Country | United States |
End: Savannah (-94.83025, 39.94166)
Estimated Travel Time
Distance: 457 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 27m |
| 40 mph (64.37 km/h) | 07h 06m |
| 50 mph (80.47 km/h) | 05h 40m |
| 60 mph (96.56 km/h) | 04h 44m |
| 70 mph (112.65 km/h) | 04h 03m |
| 80 mph (129 km/h) | 03h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $37.82 | $75.65 |
| Mid-grade | $4.25 | $42.66 | $85.32 |
| Premium | $4.65 | $46.68 | $93.36 |
| Diesel | $5.30 | $53.20 | $106.40 |
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.