How far is Champaign, IL from Cahokia, IL?
The driving distance from Champaign, IL to Cahokia, IL is about 180.6 miles (290.6 km), with a travel time of about 03h 23m by car.
- The straight-line flight distance is about 149.1 miles (239.9 km).
- For a round trip, plan for roughly 06h 46m 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 23m.
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.
City in Effingham County, Illinois, United States
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 Champaign and Cahokia.
Turn-by-Turn Driving Directions
Step-by-step road directions between Champaign and Cahokia.
-
1
Start on North Neil Street
13 m · 6 sec · North Neil Street
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2
Turn right onto West University Avenue
141 m · 17 sec · West University Avenue
-
3
Turn right onto North Randolph Street
721 ft · 28 sec · North Randolph Street
-
4
Turn left onto West Church Street
1.9 mi · 5 min · West Church Street
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5
Continue straight
1.3 mi · 2 min
-
6
Take the exit slight right toward I 57 South: Memphis
1515 ft · 43 sec
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7
Merge slight left
77.4 mi · 1 hr 23 min
-
8
Keep slight right to continue on I 70 West: Saint Louis
76.8 mi · 1 hr 23 min
-
9
Keep slight left to continue on I 55 South, I 70 West: Saint Louis
16.8 mi · 20 min
-
10
Keep slight left to continue on I 55 South, I 64, IL 3, US 40 West: Louisville, Saint Louis
1.1 km · 1 min
-
11
Merge slight left
1 mi · 2 min
-
12
Keep slight right to continue on IL 3 South: Cahokia
2632 ft · 32 sec
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13
Take the exit slight right toward IL 3 South: Cahokia Heights, Great River Road South
3.6 mi · 6 min
-
14
Turn right onto West 1st Street
29 m · 4 sec · West 1st Street
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15
Arrive at your destination
0 m · 1 sec · West 1st Street
Car Route Details
A richer read on the saved driving route between Champaign and Cahokia.
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
77.4 mi · 01h 23m
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 Champaign and Sunny near Cahokia.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Champaign to Cahokia?
The road trip is about 180.6 miles (290.6 km) and usually takes 03h 23m 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?
Altamont is a useful midpoint, sitting about 90.2 miles from Champaign and 90.3 miles from Cahokia.
How much longer is the road route than the straight-line distance?
The direct path is about 149.1 miles (239.9 km), while the road route adds roughly 31.5 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:14 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.02 one way or $48.04 round trip. Estimated CO2 is about 56.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Champaign and Sunny near Cahokia.
Stop Ideas Near Altamont
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 Altamont.
Effingham
Mattoon station
Centralia station
Mt. Vernon, IL
Flight Path Map
This map shows the direct air route between Champaign and Cahokia. Straight-line distance: 149.07 mi (239.9 km).
#1 Champaign
The most populous city in Champaign County, Illinois.
| Population | 89,390 |
| Coordinates | 40.1164200, -88.2433800 |
| Altitude | 225 |
| Country | United States |
#2 Cahokia
Village in St.
| Population | 13,742 |
| Coordinates | 38.5708800, -90.1901100 |
| Altitude | 124 |
| Country | United States |
End: Cahokia (-90.19011, 38.57088)
Estimated Travel Time
Distance: 291 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 01m |
| 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 15m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $24.02 | $48.04 |
| Mid-grade | $4.25 | $27.09 | $54.18 |
| Premium | $4.65 | $29.65 | $59.29 |
| Diesel | $5.30 | $33.79 | $67.57 |
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.