How far is Polk, MO from O'Fallon, MO?
The driving distance from Polk, MO to O'Fallon, MO is about 203.6 miles (327.6 km), with a travel time of about 03h 16m by car.
- The straight-line flight distance is about 159.6 miles (256.8 km).
- For a round trip, plan for roughly 06h 33m 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 16m.
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.
The capital of Missouri.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Polk and O'Fallon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Polk and O'Fallon.
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1
Start on the route
2.1 mi · 5 min
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2
Continue straight
9.5 mi · 17 min
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3
Continue straight
5.4 mi · 10 min
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4
Turn right onto US Highway 54
60 mi · 1 hr 13 min · US Highway 54
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5
Turn straight
56.1 mi · 1 hr 3 min
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6
Take the exit slight right toward I 70 East, US 40 East: Saint Louis
1220 ft · 15 sec
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7
Merge slight left onto Dwight D. Eisenhower Highway
69.2 mi · 1 hr 20 min · Dwight D. Eisenhower Highway
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8
Take the exit slight right toward MO K: O'Fallon
1765 ft · 43 sec
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9
Turn straight onto Drennen Parkway
46 m · 3 sec · Drennen Parkway
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10
Keep slight right to continue on Drennen Parkway
51 m · 6 sec · Drennen Parkway
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11
Turn slight left onto MO K: O'Fallon
19 m · 3 sec
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12
Continue on South Main Street
3115 ft · 2 min · South Main Street
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13
Turn right
8 m · 2 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Polk 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 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.
Chance Showers And Thunderstorms leaving Polk and Chance Showers And Thunderstorms near O'Fallon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Polk to O'Fallon?
The road trip is about 203.6 miles (327.6 km) and usually takes 03h 16m 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?
Jefferson City is a useful midpoint, sitting about 101.7 miles from Polk and 101.9 miles from O'Fallon.
How much longer is the road route than the straight-line distance?
The direct path is about 159.6 miles (256.8 km), while the road route adds roughly 44 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 10:26 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.54 one way or $57.08 round trip. Estimated CO2 is about 63.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Polk and Chance Showers And Thunderstorms near O'Fallon.
Stop Ideas Near Jefferson 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 Jefferson City.
Jefferson City
Hermann
Sedalia
Washington
Flight Path Map
This map shows the direct air route between Polk and O'Fallon. Straight-line distance: 159.57 mi (256.81 km).
#1 Polk
County in Missouri, United States
| Population | 732 |
| Coordinates | 37.7292000, -93.2993600 |
| Altitude | 317 |
| 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: 328 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 46m |
| 40 mph (64.37 km/h) | 05h 05m |
| 50 mph (80.47 km/h) | 04h 04m |
| 60 mph (96.56 km/h) | 03h 23m |
| 70 mph (112.65 km/h) | 02h 54m |
| 80 mph (129 km/h) | 02h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.98 | $28.54 | $57.08 |
| Mid-grade | $4.34 | $31.17 | $62.34 |
| Premium | $4.71 | $33.80 | $67.59 |
| Diesel | $5.99 | $42.99 | $85.99 |
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 · Oct 15, 2026