How far is Chicago, IL from Dayton, IL?
The driving distance from Chicago, IL to Dayton, IL is about 160.8 miles (258.8 km), with a travel time of about 03h 05m by car.
- The straight-line flight distance is about 140.1 miles (225.5 km).
- For a round trip, plan for roughly 06h 10m 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 05m.
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 Ogle County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Chicago and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Chicago and Dayton.
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1
Start on the route
943 ft · 1 min
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2
At the end of the road, turn left onto West Cermak Road
1.3 km · 2 min · West Cermak Road
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3
Turn right onto South Ashland Avenue
1.7 mi · 3 min · South Ashland Avenue
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4
Turn left onto West Van Buren Street
900 ft · 29 sec · West Van Buren Street
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5
Take the ramp slight left toward I 290 West
650 ft · 16 sec
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6
Merge slight left onto Eisenhower Expressway
12.1 mi · 16 min · Eisenhower Expressway
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7
Keep slight left to continue on Ronald Reagan Memorial Tollway
1.9 mi · 2 min · Ronald Reagan Memorial Tollway
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8
Keep slight right to continue on Ronald Reagan Memorial Tollway
25.1 mi · 30 min · Ronald Reagan Memorial Tollway
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9
Keep slight left to continue on Ronald Reagan Memorial Tollway
69.5 mi · 1 hr 14 min · Ronald Reagan Memorial Tollway
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10
Continue on Ronald Reagan Memorial Highway
1.1 mi · 1 min · Ronald Reagan Memorial Highway
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11
Continue on Ronald Reagan Memorial Highway
37.8 mi · 40 min · Ronald Reagan Memorial Highway
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12
Continue on Chicago-Kansas City Expressway
5.4 mi · 6 min · Chicago-Kansas City Expressway
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13
Take the exit slight right toward I 80: Peoria
3.5 mi · 4 min
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14
Take the exit slight right toward Colona
2318 ft · 57 sec
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15
Keep slight left
33 m · 9 sec
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16
Turn left onto Cleveland Road
1 mi · 2 min · Cleveland Road
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17
Turn right onto Dayton Corner B Street
35 m · 5 sec · Dayton Corner B Street
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18
Arrive at your destination
0 m · 1 sec · Dayton Corner B Street
Car Route Details
A richer read on the saved driving route between Chicago and Dayton.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Ronald Reagan Memorial Tollway
Keep slight left to continue on Ronald Reagan Memorial Tollway
69.5 mi · 01h 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.
Showers And Thunderstorms leaving Chicago and Mostly Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Chicago to Dayton?
The road trip is about 160.8 miles (258.8 km) and usually takes 03h 05m 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?
Rochelle is a useful midpoint, sitting about 80.2 miles from Chicago and 80.5 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 140.1 miles (225.5 km), while the road route adds roughly 20.7 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 10:50 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.38 one way or $42.76 round trip. Estimated CO2 is about 50.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Chicago and Mostly Sunny near Dayton.
Stop Ideas Near Rochelle
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 Rochelle.
Rockford, Illinois
Mendota station
Plano
South Beloit, Illinois
Flight Path Map
This map shows the direct air route between Chicago and Dayton. Straight-line distance: 140.11 mi (225.48 km).
#1 Chicago
The third most populous city in the United States and the center of the Chicago metropolitan area.
| Population | 2,677,643 |
| Coordinates | 41.850033, -87.6500523 |
| Altitude | 179 |
| Country | United States |
#2 Dayton
Census-designated place in Illinois, USA
| Population | 2,258 |
| Coordinates | 41.4892000, -90.3215100 |
| Altitude | 184 |
| Country | United States |
End: Dayton (-90.32151, 41.4892)
Estimated Travel Time
Distance: 259 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 21m |
| 40 mph (64.37 km/h) | 04h 01m |
| 50 mph (80.47 km/h) | 03h 12m |
| 60 mph (96.56 km/h) | 02h 40m |
| 70 mph (112.65 km/h) | 02h 17m |
| 80 mph (129 km/h) | 02h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.38 | $42.76 |
| Mid-grade | $4.25 | $24.11 | $48.23 |
| Premium | $4.65 | $26.39 | $52.78 |
| Diesel | $5.30 | $30.07 | $60.15 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.