How far is Cahokia, IL from Springfield, IL?
The driving distance from Cahokia, IL to Springfield, IL is about 103.5 miles (166.6 km), with a travel time of about 01h 39m by car.
- The straight-line flight distance is about 89.9 miles (144.7 km).
- For a round trip, plan for roughly 03h 18m 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 01h 39m.
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.
Human settlement in Macoupin County, Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Cahokia and Springfield.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cahokia and Springfield.
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1
Start on West 1st Street
29 m · 5 sec · West 1st Street
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2
Turn slight left onto Mississippi Avenue
3.1 mi · 5 min · Mississippi Avenue
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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
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4
Keep slight left to continue on I 55 North: Chicago, Indianapolis
3128 ft · 54 sec
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5
Merge slight right
15.5 mi · 18 min
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6
Keep slight left to continue on I 55 North, I 270 West: Chicago, Springfield, Kansas City
72.8 mi · 1 hr 18 min
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7
Take the exit slight left toward I 55 Business North: Springfield
1.1 km · 1 min
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8
Keep slight left to continue on I 55 Business North: Springfield
891 ft · 17 sec
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9
Keep slight left to continue on I 55 Business North: Springfield
3.8 mi · 9 min
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10
Continue on East Old State Capitol Plaza
125 m · 16 sec · East Old State Capitol Plaza
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11
Turn right onto East Washington Street
1169 ft · 37 sec · East Washington Street
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12
Arrive at your destination
0 m · 1 sec · East Washington Street
Car Route Details
A richer read on the saved driving route between Cahokia and Springfield.
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 270 West: Chicago, Springfield, Kansas City
72.8 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.
Sunny leaving Cahokia and Sunny near Springfield.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cahokia to Springfield?
The road trip is about 103.5 miles (166.6 km) and usually takes 01h 39m 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?
Lake Ka-Ho is a useful midpoint, sitting about 49.6 miles from Cahokia and 53.9 miles from Springfield.
How much longer is the road route than the straight-line distance?
The direct path is about 89.9 miles (144.7 km), while the road route adds roughly 13.6 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:12 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.76 one way or $27.53 round trip. Estimated CO2 is about 32.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Cahokia and Sunny near Springfield.
Stop Ideas Near Lake Ka-Ho
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 Lake Ka-Ho.
Carlinville
Alton
Gateway Transportation Center
Springfield station
Flight Path Map
This map shows the direct air route between Cahokia and Springfield. Straight-line distance: 89.94 mi (144.74 km).
#1 Cahokia
Village in St.
| Population | 13,742 |
| Coordinates | 38.5708800, -90.1901100 |
| Altitude | 124 |
| Country | United States |
#2 Springfield
The capital of Illinois and the county seat of Sangamon County.
| Population | 113,671 |
| Coordinates | 39.8017200, -89.6437100 |
| Altitude | 182 |
| Country | United States |
End: East Washington Street (-89.643712, 39.801639)
Estimated Travel Time
Distance: 167 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 26m |
| 40 mph (64.37 km/h) | 02h 35m |
| 50 mph (80.47 km/h) | 02h 04m |
| 60 mph (96.56 km/h) | 01h 43m |
| 70 mph (112.65 km/h) | 01h 28m |
| 80 mph (129 km/h) | 01h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $13.76 | $27.53 |
| Mid-grade | $4.25 | $15.52 | $31.05 |
| Premium | $4.65 | $16.99 | $33.97 |
| Diesel | $5.30 | $19.36 | $38.72 |
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.