How far is Cahokia, IL from Brookfield, IL?
The driving distance from Cahokia, IL to Brookfield, IL is about 286 miles (460.3 km), with a travel time of about 05h 24m by car.
- The straight-line flight distance is about 256.4 miles (412.6 km).
- For a round trip, plan for roughly 10h 49m 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 05h 24m.
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 Logan County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Cahokia and Brookfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cahokia and Brookfield.
-
1
Start on West 1st Street
29 m · 5 sec · West 1st Street
-
2
Turn slight left onto Mississippi Avenue
3.1 mi · 5 min · Mississippi Avenue
-
3
Keep slight right to continue on I 64 East, I 55 North, IL 3: Chicago, Indianapolis, Great River Road
2.1 mi · 3 min
-
4
Keep slight left to continue on I 55 North: Chicago, Indianapolis
3128 ft · 54 sec
-
5
Merge slight right
15.5 mi · 18 min
-
6
Keep slight left to continue on I 55 North, I 270 West: Chicago, Springfield, Kansas City
107.9 mi · 1 hr 57 min
-
7
Keep slight right to continue on I 55 North: Chicago
29.4 mi · 31 min
-
8
Keep slight left to continue on I 55 North, I 74 West: Chicago, Peoria
120.7 mi · 2 hr 14 min
-
9
Take the exit slight left toward Joliet Road
2 mi · 4 min · Joliet Road
-
10
Turn left onto South Brainard Avenue
1.6 km · 2 min · South Brainard Avenue
-
11
Turn right onto West Plainfield Road
3132 ft · 1 min · West Plainfield Road
-
12
Turn left onto South La Grange Road
1.3 km · 2 min · South La Grange Road
-
13
Turn right onto East 47th Street
1 mi · 2 min · East 47th Street
-
14
Turn left onto Maple Avenue
1.3 mi · 3 min · Maple Avenue
-
15
Turn left onto Grant Avenue
31 m · 4 sec · Grant Avenue
-
16
Arrive at your destination
0 m · 1 sec · Grant Avenue
Car Route Details
A richer read on the saved driving route between Cahokia and Brookfield.
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 55 North
Keep slight left to continue on I 55 North, I 74 West: Chicago, Peoria
121 mi · 02h 14m
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 Cahokia and Slight Chance Showers And Thunderstorms near Brookfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cahokia to Brookfield?
The road trip is about 286 miles (460.3 km) and usually takes 05h 24m 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?
Atlanta is a useful midpoint, sitting about 143 miles from Cahokia and 143 miles from Brookfield.
How much longer is the road route than the straight-line distance?
The direct path is about 256.4 miles (412.6 km), while the road route adds roughly 29.6 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 6:10 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.05 one way or $76.10 round trip. Estimated CO2 is about 89.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Cahokia and Slight Chance Showers And Thunderstorms near Brookfield.
Stop Ideas Near Atlanta
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Route 66 Original Alignment- Driveable!
City of Lincoln
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Atlanta.
Lincoln
Uptown Station
Peoria, Illinois
Springfield station
Flight Path Map
This map shows the direct air route between Cahokia and Brookfield. Straight-line distance: 256.39 mi (412.62 km).
#1 Cahokia
Village in St.
| Population | 13,742 |
| Coordinates | 38.5708800, -90.1901100 |
| Altitude | 124 |
| Country | United States |
#2 Brookfield
Village in Cook County, Illinois (United States of America)
| Population | 18,091 |
| Coordinates | 41.8239200, -87.8517300 |
| Altitude | 190 |
| Country | United States |
End: Brookfield (-87.85173, 41.82392)
Estimated Travel Time
Distance: 460 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 31m |
| 40 mph (64.37 km/h) | 07h 09m |
| 50 mph (80.47 km/h) | 05h 43m |
| 60 mph (96.56 km/h) | 04h 45m |
| 70 mph (112.65 km/h) | 04h 05m |
| 80 mph (129 km/h) | 03h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $38.05 | $76.10 |
| Mid-grade | $4.25 | $42.91 | $85.83 |
| Premium | $4.65 | $46.96 | $93.92 |
| Diesel | $5.30 | $53.52 | $107.03 |
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 · Jul 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.