How far is Ottawa, IL from Decatur, IL?
The driving distance from Ottawa, IL to Decatur, IL is about 118.1 miles (190 km), with a travel time of about 02h 03m by car.
- The straight-line flight distance is about 104.1 miles (167.6 km).
- For a round trip, plan for roughly 04h 07m 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 03m.
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.
Village in Woodford County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Ottawa and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ottawa and Decatur.
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1
Start on La Salle Street
50 m · 7 sec · La Salle Street
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2
Turn slight right onto Woodward Memorial Drive
1090 ft · 35 sec · Woodward Memorial Drive
-
3
Turn left onto West Main Street
1 mi · 2 min · West Main Street
-
4
At the end of the road, turn right onto Boyce Memorial Drive
3027 ft · 1 min · Boyce Memorial Drive
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5
At the end of the road, turn left
7.8 mi · 12 min
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6
At the end of the road, turn right
10 m · 2 sec
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7
Turn left
103 m · 7 sec
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8
Continue straight
4 mi · 6 min
-
9
Take the ramp left toward US 6: LaSalle, Peru, Ottowa
1017 ft · 25 sec
-
10
Merge slight left
55.8 mi · 1 hr
-
11
Keep slight right to continue on I 55 South, US 51 South: Peoria, Champaign, Saint Louis, Decatur
7.6 mi · 8 min
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12
Keep slight left to continue on I 74 East, US 51 South, US 55 Business North: Indianapolis, Decatur
2.1 mi · 2 min
-
13
Take the exit slight right toward US 51 South, US 51 Business North: Decatur, Bloomington
1616 ft · 40 sec
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14
Continue on North 1450 East Road
14.7 mi · 18 min · North 1450 East Road
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15
Continue on North Walnut Street
23.2 mi · 30 min · North Walnut Street
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16
Turn straight
4.7 mi · 8 min
-
17
Turn left onto East Wood Street
91 m · 8 sec · East Wood Street
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18
Arrive at your destination
0 m · 1 sec · East Wood Street
Car Route Details
A richer read on the saved driving route between Ottawa and Decatur.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 6
Merge slight left
55.8 mi · 01h 00m
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.
Partly Sunny leaving Ottawa and Mostly Sunny near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ottawa to Decatur?
The road trip is about 118.1 miles (190 km) and usually takes 02h 03m 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?
Kappa is a useful midpoint, sitting about 61.2 miles from Ottawa and 56.9 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 104.1 miles (167.6 km), while the road route adds roughly 14 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 2:22 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.73 one way or $31.45 round trip. Estimated CO2 is about 37.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Ottawa and Mostly Sunny near Decatur.
Stop Ideas Near Kappa
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City Hall - Town of Normal
City of Bloomington, Illinois
El Paso City Water Works
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Kappa.
Uptown Station
Pontiac station
Peoria, Illinois
Lincoln
Flight Path Map
This map shows the direct air route between Ottawa and Decatur. Straight-line distance: 104.17 mi (167.65 km).
#1 Ottawa
City in Illinois, United States
| Population | 18,097 |
| Coordinates | 41.3455900, -88.8425800 |
| Altitude | 147 |
| Country | United States |
#2 Decatur
The most populous city in Macon County, Illinois.
| Population | 70,007 |
| Coordinates | 39.8403100, -88.9548000 |
| Altitude | 205 |
| Country | United States |
End: East Wood Street (-88.954801, 39.840341)
Estimated Travel Time
Distance: 190 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 56m |
| 40 mph (64.37 km/h) | 02h 57m |
| 50 mph (80.47 km/h) | 02h 21m |
| 60 mph (96.56 km/h) | 01h 58m |
| 70 mph (112.65 km/h) | 01h 41m |
| 80 mph (129 km/h) | 01h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.73 | $31.45 |
| Mid-grade | $4.25 | $17.74 | $35.47 |
| Premium | $4.65 | $19.41 | $38.81 |
| Diesel | $5.30 | $22.12 | $44.24 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.