How far is Decatur, IL from Kankakee, IL?
The driving distance from Decatur, IL to Kankakee, IL is about 121.9 miles (196.1 km), with a travel time of about 02h 17m by car.
- The straight-line flight distance is about 105.4 miles (169.7 km).
- For a round trip, plan for roughly 04h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 17m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny then Patchy Blowing Dust
Driving Route Map
The map below follows the saved road route between Decatur and Kankakee.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Kankakee.
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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
-
3
Continue on North Water Street
4 mi · 6 min · North Water Street
-
4
Take the ramp slight right toward I 72 East: Champaign
2373 ft · 1 min
-
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
-
7
Merge slight left
72.6 mi · 1 hr 18 min
-
8
Take the exit slight right toward US 45, US 52: Kankakee
1575 ft · 54 sec
-
9
Keep slight right
83 m · 9 sec
-
10
Turn straight onto South Schuyler Avenue
3.1 mi · 5 min · South Schuyler Avenue
-
11
Turn right onto East Court Street
765 ft · 13 sec · East Court Street
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12
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Decatur and Kankakee.
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
72.6 mi · 01h 18m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Decatur and Partly Sunny then Patchy Blowing Dust near Kankakee.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Kankakee?
The road trip is about 121.9 miles (196.1 km) and usually takes 02h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Rantoul is a useful midpoint, sitting about 61 miles from Decatur and 61 miles from Kankakee.
How much longer is the road route than the straight-line distance?
The direct path is about 105.4 miles (169.7 km), while the road route adds roughly 16.5 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 1:56 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.22 one way or $32.43 round trip. Estimated CO2 is about 38.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Decatur and Partly Sunny then Patchy Blowing Dust near Kankakee.
Stop Ideas Near Rantoul
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 Rantoul.
Rantoul
Illinois Terminal
Danville, Illinois
Gilman
Flight Path Map
This map shows the direct air route between Decatur and Kankakee. Straight-line distance: 105.46 mi (169.72 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 Kankakee
City in Kankakee County, Illinois, United States
| Population | 25,668 |
| Coordinates | 41.1200300, -87.8611500 |
| Altitude | 200 |
| Country | United States |
End: Kankakee (-87.86115, 41.12003)
Estimated Travel Time
Distance: 196 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 03m |
| 40 mph (64.37 km/h) | 03h 02m |
| 50 mph (80.47 km/h) | 02h 26m |
| 60 mph (96.56 km/h) | 02h 01m |
| 70 mph (112.65 km/h) | 01h 44m |
| 80 mph (129 km/h) | 01h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $16.22 | $32.43 |
| Mid-grade | $4.25 | $18.29 | $36.58 |
| Premium | $4.65 | $20.01 | $40.02 |
| Diesel | $5.30 | $22.81 | $45.61 |
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 · May 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.