How far is Decatur, IL from Oak Park, IL?
The driving distance from Decatur, IL to Oak Park, IL is about 180 miles (289.7 km), with a travel time of about 03h 34m by car.
- The straight-line flight distance is about 153.9 miles (247.7 km).
- For a round trip, plan for roughly 07h 09m 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 34m.
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
Driving Route Map
The map below follows the saved road route between Decatur and Oak Park.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Oak Park.
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1
Start on East Wood Street
155 m · 23 sec · East Wood Street
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2
Turn left onto South Franklin Street
2129 ft · 46 sec · South Franklin Street
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3
Continue on North Water Street
4 mi · 6 min · North Water Street
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4
Take the ramp slight right toward I 72 East: Champaign
2373 ft · 1 min
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5
Merge slight left
40.4 mi · 44 min
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6
Take the exit slight right toward I 57 North: Chicago
1520 ft · 43 sec
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7
Merge slight left
106.9 mi · 1 hr 55 min
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8
Take the exit slight right toward Vollmer Road
1475 ft · 42 sec
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9
Keep slight left to continue on Vollmer Road West
159 m · 17 sec
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10
Turn right onto Vollmer Road
1892 ft · 40 sec · Vollmer Road
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11
Turn left onto Cicero Avenue
10.8 mi · 17 min · Cicero Avenue
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12
Continue on South Cicero Avenue
13.6 mi · 23 min · South Cicero Avenue
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13
Turn left onto West Madison Street
1.5 mi · 3 min · West Madison Street
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14
Turn right onto North Austin Boulevard
713 ft · 28 sec · North Austin Boulevard
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15
Turn left onto Washington Boulevard
2681 ft · 1 min · Washington Boulevard
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16
Turn right onto South Ridgeland Avenue
1210 ft · 35 sec · South Ridgeland Avenue
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17
Arrive at your destination
0 m · 1 sec · South Ridgeland Avenue
Car Route Details
A richer read on the saved driving route between Decatur and Oak Park.
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 North
Merge slight left
107 mi · 01h 55m
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 Decatur and Mostly Sunny near Oak Park.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Oak Park?
The road trip is about 180 miles (289.7 km) and usually takes 03h 34m 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 90 miles from Decatur and 90 miles from Oak Park.
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 26.1 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 9:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.95 one way or $47.89 round trip. Estimated CO2 is about 56.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near Oak Park.
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 Decatur and Oak Park. Straight-line distance: 153.94 mi (247.74 km).
#1 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
#2 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 |
End: Oak Park (-87.7845, 41.88503)
Estimated Travel Time
Distance: 290 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 59m |
| 40 mph (64.37 km/h) | 04h 30m |
| 50 mph (80.47 km/h) | 03h 36m |
| 60 mph (96.56 km/h) | 03h 00m |
| 70 mph (112.65 km/h) | 02h 34m |
| 80 mph (129 km/h) | 02h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $23.95 | $47.89 |
| Mid-grade | $4.25 | $27.01 | $54.01 |
| Premium | $4.65 | $29.55 | $59.11 |
| Diesel | $5.30 | $33.68 | $67.36 |
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.