How far is Decatur, IL from Lockport, IL?
The driving distance from Decatur, IL to Lockport, IL is about 152.1 miles (244.8 km), with a travel time of about 02h 34m by car.
- The straight-line flight distance is about 129.7 miles (208.7 km).
- For a round trip, plan for roughly 05h 09m 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 02h 34m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Decatur and Lockport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Decatur and Lockport.
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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
95.2 mi · 1 hr 43 min
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6
Take the exit slight right toward I 80 East: Indiana
1.2 km · 1 min
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7
Merge slight left
5.1 mi · 6 min
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8
Take the exit slight right toward Center Street
1.3 km · 2 min
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9
Continue on South Center Street
1401 ft · 38 sec · South Center Street
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10
Continue on Hickory Street
1.2 km · 2 min · Hickory Street
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11
Turn right onto Bridge Street
106 m · 17 sec · Bridge Street
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12
Turn left onto Broadway Street
4.4 mi · 9 min · Broadway Street
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13
Turn right onto West 9th Street
1.6 km · 2 min · West 9th Street
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14
Arrive at your destination
0 m · 1 sec · West 9th Street
Car Route Details
A richer read on the saved driving route between Decatur and Lockport.
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 74 West
Take the exit slight right toward I 74 West, US 51 North: Peoria, Rockford
95.2 mi · 01h 43m
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 Decatur and Mostly Sunny near Lockport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Decatur to Lockport?
The road trip is about 152.1 miles (244.8 km) and usually takes 02h 34m 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?
Chenoa is a useful midpoint, sitting about 75.5 miles from Decatur and 76.6 miles from Lockport.
How much longer is the road route than the straight-line distance?
The direct path is about 129.7 miles (208.7 km), while the road route adds roughly 22.4 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 1:20 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.25 one way or $40.50 round trip. Estimated CO2 is about 47.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Decatur and Mostly Sunny near Lockport.
Stop Ideas Near Chenoa
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 Chenoa.
Pontiac station
Uptown Station
Dwight station
Gilman
Flight Path Map
This map shows the direct air route between Decatur and Lockport. Straight-line distance: 129.66 mi (208.67 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 Lockport
The most populous city in Will County, Illinois.
| Population | 59,877 |
| Coordinates | 41.5894800, -88.0578400 |
| Altitude | 181 |
| Country | United States |
End: West 9th Street (-88.057844, 41.589471)
Estimated Travel Time
Distance: 245 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 04m |
| 40 mph (64.37 km/h) | 03h 48m |
| 50 mph (80.47 km/h) | 03h 02m |
| 60 mph (96.56 km/h) | 02h 32m |
| 70 mph (112.65 km/h) | 02h 10m |
| 80 mph (129 km/h) | 01h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $20.25 | $40.50 |
| Mid-grade | $4.25 | $22.84 | $45.68 |
| Premium | $4.65 | $24.99 | $49.98 |
| Diesel | $5.30 | $28.48 | $56.96 |
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.