How far is Decatur, IL from Antioch, IL?
The driving distance from Decatur, IL to Antioch, IL is about 220.2 miles (354.4 km), with a travel time of about 04h 28m by car.
- The straight-line flight distance is about 187.6 miles (301.9 km).
- For a round trip, plan for roughly 08h 56m 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 04h 28m.
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.
Village in Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Antioch.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Antioch.
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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
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3
Continue on North Water Street
27.4 mi · 37 min · North Water Street
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4
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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5
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
113.8 mi · 2 hr 5 min
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6
Take the exit slight right toward I 355 Toll: Northwest Suburbs, Southwest Suburbs
2797 ft · 1 min
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7
Keep slight left to continue on I 355 North: Northwest Suburbs
1.2 mi · 3 min
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8
Merge slight left onto Veterans Memorial Tollway
19.2 mi · 24 min · Veterans Memorial Tollway
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9
Merge slight left
5.6 mi · 7 min
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10
Keep slight left
8.9 mi · 12 min
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11
Continue on Lake Cook Road
1.2 km · 1 min · Lake Cook Road
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12
Continue on North Rand Road
14.3 mi · 19 min · North Rand Road
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13
Continue straight
1.9 mi · 2 min
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14
Continue straight
2.3 mi · 3 min
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15
Turn slight right
2.7 mi · 4 min
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16
Continue on Fox Lake Road
5.9 mi · 10 min · Fox Lake Road
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17
Continue on Lake Street
2489 ft · 1 min · Lake Street
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18
At the end of the road, turn right onto Main Street
2 m · 1 sec · Main Street
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19
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Decatur and Antioch.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
I 74 West
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
114 mi · 02h 05m
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.
Slight Chance Showers And Thunderstorms then Mostly Sunny leaving Decatur and Sunny near Antioch.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Antioch?
The road trip is about 220.2 miles (354.4 km) and usually takes 04h 28m 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?
Dwight is a useful midpoint, sitting about 110.2 miles from Decatur and 110.1 miles from Antioch.
How much longer is the road route than the straight-line distance?
The direct path is about 187.6 miles (301.9 km), while the road route adds roughly 32.6 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 8:04 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.30 one way or $58.60 round trip. Estimated CO2 is about 69.1 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms then Mostly Sunny around Decatur and Sunny near Antioch.
Stop Ideas Near Dwight
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 Dwight.
Dwight station
Pontiac station
Kankakee
Gilman
Flight Path Map
This map shows the direct air route between Decatur and Antioch. Straight-line distance: 187.59 mi (301.9 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 Antioch
Town in the American state of Illinois
| Population | 14,174 |
| Coordinates | 42.4772400, -88.0956400 |
| Altitude | 239 |
| Country | United States |
End: Antioch (-88.09564, 42.47724)
Estimated Travel Time
Distance: 354 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 20m |
| 40 mph (64.37 km/h) | 05h 30m |
| 50 mph (80.47 km/h) | 04h 24m |
| 60 mph (96.56 km/h) | 03h 40m |
| 70 mph (112.65 km/h) | 03h 08m |
| 80 mph (129 km/h) | 02h 44m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $29.30 | $58.60 |
| Mid-grade | $4.25 | $33.05 | $66.09 |
| Premium | $4.65 | $36.16 | $72.32 |
| Diesel | $5.30 | $41.21 | $82.42 |
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.