How far is Des Plaines, IL from LaSalle County, IL?
The driving distance from Des Plaines, IL to LaSalle County, IL is about 87.2 miles (140.4 km), with a travel time of about 01h 49m by car.
- The straight-line flight distance is about 70.3 miles (113.2 km).
- For a round trip, plan for roughly 03h 39m 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 49m.
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 Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Rain
Driving Route Map
The map below follows the saved road route between Des Plaines and LaSalle County.
Turn-by-Turn Driving Directions
Step-by-step road directions between Des Plaines and LaSalle County.
-
1
Start on Henry Avenue
557 ft · 25 sec · Henry Avenue
-
2
Turn right onto South Des Plaines River Road
1.8 mi · 3 min · South Des Plaines River Road
-
3
Take the ramp slight right toward I 294 South: Indiana
2265 ft · 55 sec
-
4
Merge slight left onto Tri-State Tollway
11.5 mi · 15 min · Tri-State Tollway
-
5
Keep slight left to continue on Tri-State Tollway
4.8 mi · 6 min · Tri-State Tollway
-
6
Keep slight right to continue on Tri-State Tollway
1.2 mi · 1 min · Tri-State Tollway
-
7
Take the exit slight right toward I 55: Chicago, St. Louis
1 km · 1 min
-
8
Keep slight right to continue on I 55 South: Saint Louis
2295 ft · 56 sec
-
9
Merge slight left onto Adlai Stevenson Expressway
25.9 mi · 32 min · Adlai Stevenson Expressway
-
10
Take the exit slight right toward I 80 West: Iowa
1.3 km · 1 min
-
11
Merge slight left
35.2 mi · 38 min
-
12
Take the exit slight right toward IL 23: De Kalb, Ottawa
1153 ft · 29 sec
-
13
Turn left
28 m · 2 sec
-
14
Turn left onto East 17th Road
554 ft · 16 sec · East 17th Road
-
15
Continue on Columbus Street
1.4 mi · 3 min · Columbus Street
-
16
Turn right onto West Norris Drive
2.3 mi · 4 min · West Norris Drive
-
17
Turn left
1567 ft · 2 min
-
18
Turn slight left
50 m · 12 sec
-
19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Des Plaines and LaSalle County.
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 80 West
Merge slight left
35.2 mi · 00h 38m
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.
Showers And Thunderstorms leaving Des Plaines and Rain near LaSalle County.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Des Plaines to LaSalle County?
The road trip is about 87.2 miles (140.4 km) and usually takes 01h 49m 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?
Shorewood is a useful midpoint, sitting about 43.6 miles from Des Plaines and 43.7 miles from LaSalle County.
How much longer is the road route than the straight-line distance?
The direct path is about 70.3 miles (113.2 km), while the road route adds roughly 16.9 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 2:50 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.37 one way or $28.74 round trip. Estimated CO2 is about 27.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Des Plaines and Rain near LaSalle County.
Stop Ideas Near Shorewood
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 Shorewood.
Joliet Transportation Center
Naperville
Plano
La Grange Road
Flight Path Map
This map shows the direct air route between Des Plaines and LaSalle County. Straight-line distance: 70.31 mi (113.16 km).
#1 Des Plaines
The most populous city in Cook County, Illinois.
| Population | 58,179 |
| Coordinates | 42.0333600, -87.8834000 |
| Altitude | 193 |
| Country | United States |
#2 LaSalle County
County in Illinois, United States
| Population | 107,571 |
| Coordinates | 41.3439900, -88.8859500 |
| Altitude | 147 |
| Country | United States |
End: LaSalle County (-88.88595, 41.34399)
Estimated Travel Time
Distance: 140 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 54m |
| 40 mph (64.37 km/h) | 02h 10m |
| 50 mph (80.47 km/h) | 01h 44m |
| 60 mph (96.56 km/h) | 01h 27m |
| 70 mph (112.65 km/h) | 01h 14m |
| 80 mph (129 km/h) | 01h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $14.37 | $28.74 |
| Mid-grade | $5.29 | $16.30 | $32.60 |
| Premium | $5.84 | $17.98 | $35.96 |
| Diesel | $6.57 | $20.24 | $40.48 |
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 · Oct 15, 2026