How far is Rock Falls, IL from Des Plaines, IL?
The driving distance from Rock Falls, IL to Des Plaines, IL is about 113 miles (181.9 km), with a travel time of about 01h 49m by car.
- The straight-line flight distance is about 94.5 miles (152.1 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.
Township in DeKalb County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Rock Falls and Des Plaines.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Falls and Des Plaines.
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1
Start on Dixon Avenue
5 m · 1 sec · Dixon Avenue
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2
Turn left onto 1st Avenue
1 mi · 2 min · 1st Avenue
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3
Turn left onto East Rock Falls Road
2.9 mi · 4 min · East Rock Falls Road
-
4
Take the ramp left
1563 ft · 39 sec
-
5
Merge slight left onto Ronald Reagan Memorial Tollway
90.3 mi · 1 hr 40 min · Ronald Reagan Memorial Tollway
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6
Keep slight right to continue on Ronald Reagan Memorial Tollway
4.7 mi · 6 min · Ronald Reagan Memorial Tollway
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7
Take the exit slight right toward I 294 North, I 290 West: Milwaukee, Rockford
3128 ft · 1 min
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8
Keep slight left to continue on I 294 Toll North: O'Hare International Airport, Milwaukee
1156 ft · 28 sec
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9
Merge slight left onto Tri-State Tollway
9.9 mi · 13 min · Tri-State Tollway
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10
Take the exit slight right toward Touhy Avenue
635 ft · 16 sec
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11
Keep slight left to continue on Touhy Avenue
2694 ft · 1 min
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12
Keep slight left to continue on Touhy Avenue West
688 ft · 17 sec
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13
Keep slight right to continue on Touhy Avenue West
1799 ft · 44 sec
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14
Turn straight onto East Touhy Avenue
99 m · 7 sec · East Touhy Avenue
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15
Turn slight right
103 m · 9 sec
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16
Turn right onto South Des Plaines River Road
1.7 mi · 3 min · South Des Plaines River Road
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17
Turn left onto Henry Avenue
557 ft · 24 sec · Henry Avenue
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18
Arrive at your destination
0 m · 1 sec · Henry Avenue
Car Route Details
A richer read on the saved driving route between Rock Falls and Des Plaines.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Ronald Reagan Memorial Tollway
Merge slight left onto Ronald Reagan Memorial Tollway
90.3 mi · 01h 40m
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.
Mostly Sunny leaving Rock Falls and Mostly Sunny near Des Plaines.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rock Falls to Des Plaines?
The road trip is about 113 miles (181.9 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?
Cortland is a useful midpoint, sitting about 56.4 miles from Rock Falls and 56.6 miles from Des Plaines.
How much longer is the road route than the straight-line distance?
The direct path is about 94.5 miles (152.1 km), while the road route adds roughly 18.5 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 $15.05 one way or $30.09 round trip. Estimated CO2 is about 35.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Rock Falls and Mostly Sunny near Des Plaines.
Stop Ideas Near Cortland
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 Cortland.
Plano
Rockford, Illinois
Naperville
Mendota station
Flight Path Map
This map shows the direct air route between Rock Falls and Des Plaines. Straight-line distance: 94.49 mi (152.06 km).
#1 Rock Falls
City in Illinois
| Population | 8,648 |
| Coordinates | 41.7797500, -89.6890000 |
| Altitude | 197 |
| Country | United States |
#2 Des Plaines
The most populous city in Cook County, Illinois.
| Population | 58,179 |
| Coordinates | 42.0333600, -87.8834000 |
| Altitude | 193 |
| Country | United States |
End: Henry Avenue (-87.883408, 42.033456)
Estimated Travel Time
Distance: 182 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 45m |
| 40 mph (64.37 km/h) | 02h 49m |
| 50 mph (80.47 km/h) | 02h 15m |
| 60 mph (96.56 km/h) | 01h 53m |
| 70 mph (112.65 km/h) | 01h 36m |
| 80 mph (129 km/h) | 01h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.05 | $30.09 |
| Mid-grade | $4.25 | $16.97 | $33.94 |
| Premium | $4.65 | $18.57 | $37.14 |
| Diesel | $5.30 | $21.16 | $42.33 |
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.