How far is Decatur, IL from Oak Lawn, IL?
The driving distance from Decatur, IL to Oak Lawn, IL is about 166.8 miles (268.5 km), with a travel time of about 03h 12m by car.
- The straight-line flight distance is about 143.6 miles (231.1 km).
- For a round trip, plan for roughly 06h 24m 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 12m.
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.
Human settlement 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 Lawn.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Oak Lawn.
-
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
1.5 mi · 3 min · South Cicero Avenue
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13
Turn left onto 103rd Street
1.3 km · 2 min · 103rd Street
-
14
Turn right onto Buell Avenue
528 ft · 28 sec · Buell Avenue
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15
Turn left onto 102nd Street
647 ft · 30 sec · 102nd Street
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16
Turn right onto Mulberry Avenue
1414 ft · 1 min · Mulberry Avenue
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17
Arrive at your destination
0 m · 1 sec · Mulberry Avenue
Car Route Details
A richer read on the saved driving route between Decatur and Oak Lawn.
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 Lawn.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Oak Lawn?
The road trip is about 166.8 miles (268.5 km) and usually takes 03h 12m 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?
Buckley is a useful midpoint, sitting about 83.5 miles from Decatur and 83.4 miles from Oak Lawn.
How much longer is the road route than the straight-line distance?
The direct path is about 143.6 miles (231.1 km), while the road route adds roughly 23.2 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 10:36 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.21 one way or $44.42 round trip. Estimated CO2 is about 52.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near Oak Lawn.
Stop Ideas Near Buckley
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 Buckley.
Gilman
Rantoul
Illinois Terminal
Pontiac station
Flight Path Map
This map shows the direct air route between Decatur and Oak Lawn. Straight-line distance: 143.61 mi (231.11 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 Lawn
Village in Illinois, United States of America
| Population | 54,376 |
| Coordinates | 41.7108700, -87.7581100 |
| Altitude | 182 |
| Country | United States |
End: Oak Lawn (-87.75811, 41.71087)
Estimated Travel Time
Distance: 268 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 33m |
| 40 mph (64.37 km/h) | 04h 10m |
| 50 mph (80.47 km/h) | 03h 20m |
| 60 mph (96.56 km/h) | 02h 46m |
| 70 mph (112.65 km/h) | 02h 22m |
| 80 mph (129 km/h) | 02h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $22.21 | $44.42 |
| Mid-grade | $4.25 | $25.05 | $50.10 |
| Premium | $4.65 | $27.41 | $54.82 |
| Diesel | $5.30 | $31.24 | $62.48 |
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.