How far is Oak Park, IL from Decatur, IL?
The driving distance from Oak Park, IL to Decatur, IL is about 181.3 miles (291.7 km), with a travel time of about 03h 06m by car.
- The straight-line flight distance is about 153.9 miles (247.7 km).
- For a round trip, plan for roughly 06h 12m 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 06m.
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.
Village in Iroquois County, Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Oak Park and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Oak Park and Decatur.
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1
Start on South Ridgeland Avenue
1210 ft · 42 sec · South Ridgeland Avenue
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2
Turn left onto Washington Boulevard
2681 ft · 1 min · Washington Boulevard
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3
Turn right onto North Austin Boulevard
713 ft · 22 sec · North Austin Boulevard
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4
Turn left onto West Madison Street
1.5 mi · 3 min · West Madison Street
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5
Turn right onto South Cicero Avenue
13.6 mi · 23 min · South Cicero Avenue
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6
Continue on Cicero Avenue
6.6 mi · 10 min · Cicero Avenue
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7
Turn left onto 167th Street
855 ft · 26 sec · 167th Street
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8
Take the ramp slight right toward I 57 South: Kankakee, I-80
3048 ft · 1 min
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9
Merge slight left
110.8 mi · 2 hr
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10
Take the exit slight right toward I 72 West: Decatur
2596 ft · 1 min
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11
Merge slight left
36.6 mi · 39 min
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12
Take the exit slight right toward IL 48: Oreana, Decatur
2140 ft · 39 sec
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13
Turn left
5.1 mi · 8 min
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14
Turn right onto East Eldorado Street
1163 ft · 29 sec · East Eldorado Street
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15
Continue straight
1.4 mi · 2 min
-
16
Turn left onto North Main Street
1985 ft · 49 sec · North Main Street
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17
Turn left onto East Wood Street
91 m · 8 sec · East Wood Street
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18
Arrive at your destination
0 m · 1 sec · East Wood Street
Car Route Details
A richer read on the saved driving route between Oak Park and Decatur.
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 57 South
Merge slight left
111 mi · 02h 00m
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 Oak Park and Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Oak Park to Decatur?
The road trip is about 181.3 miles (291.7 km) and usually takes 03h 06m 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?
Onarga is a useful midpoint, sitting about 89.4 miles from Oak Park and 91.8 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 153.9 miles (247.7 km), while the road route adds roughly 27.4 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 10:48 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.13 one way or $48.27 round trip. Estimated CO2 is about 56.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Oak Park and Sunny near Decatur.
Stop Ideas Near Onarga
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 Onarga.
Gilman
Kankakee
Rantoul
Dwight station
Flight Path Map
This map shows the direct air route between Oak Park and Decatur. Straight-line distance: 153.94 mi (247.74 km).
#1 Oak Park
Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
| Population | 51,852 |
| Coordinates | 41.8850300, -87.7845000 |
| Altitude | 189 |
| Country | United States |
#2 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
End: East Wood Street (-88.954801, 39.840341)
Estimated Travel Time
Distance: 292 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 02m |
| 40 mph (64.37 km/h) | 04h 31m |
| 50 mph (80.47 km/h) | 03h 37m |
| 60 mph (96.56 km/h) | 03h 01m |
| 70 mph (112.65 km/h) | 02h 35m |
| 80 mph (129 km/h) | 02h 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $24.13 | $48.27 |
| Mid-grade | $4.25 | $27.22 | $54.44 |
| Premium | $4.65 | $29.79 | $59.57 |
| Diesel | $5.30 | $33.95 | $67.89 |
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 Illinois · 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.