How far is Des Plaines, IL from Lemont, IL?
The driving distance from Des Plaines, IL to Lemont, IL is about 30.4 miles (48.9 km), with a travel time of about 00h 43m by car.
- The straight-line flight distance is about 25.6 miles (41.2 km).
- For a round trip, plan for roughly 01h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 43m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Village in DuPage County in 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 Des Plaines and Lemont.
Turn-by-Turn Driving Directions
Step-by-step road directions between Des Plaines and Lemont.
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1
Start on Henry Avenue
557 ft · 25 sec · Henry Avenue
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2
Turn right onto South Des Plaines River Road
1.8 mi · 3 min · South Des Plaines River Road
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3
Take the ramp slight right toward I 294 South: Indiana
2265 ft · 55 sec
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4
Merge slight left onto Tri-State Tollway
11.5 mi · 15 min · Tri-State Tollway
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5
Keep slight left to continue on Tri-State Tollway
4.8 mi · 6 min · Tri-State Tollway
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6
Keep slight right to continue on Tri-State Tollway
1.2 mi · 1 min · Tri-State Tollway
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7
Take the exit slight right toward I 55: Chicago, St. Louis
1 km · 1 min
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8
Keep slight right to continue on I 55 South: Saint Louis
2295 ft · 56 sec
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9
Merge slight left onto Adlai Stevenson Expressway
5.9 mi · 8 min · Adlai Stevenson Expressway
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10
Take the exit slight right toward South Lemont Road
1790 ft · 51 sec
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11
Turn straight onto Lemont Road
2.9 mi · 5 min · Lemont Road
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12
Continue on State Street
966 ft · 30 sec · State Street
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13
Turn left onto East Illinois Street
154 m · 19 sec · East Illinois Street
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14
Turn left onto Lemont Street
58 m · 14 sec · Lemont Street
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15
Turn left onto Main Street
139 m · 18 sec · Main Street
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16
Arrive at your destination
0 m · 1 sec · West New Avenue
Car Route Details
A richer read on the saved driving route between Des Plaines and Lemont.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Tri-State Tollway
Merge slight left onto Tri-State Tollway
11.5 mi · 00h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Des Plaines and Mostly Sunny near Lemont.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Des Plaines to Lemont?
The road trip is about 30.4 miles (48.9 km) and usually takes 00h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Oak Brook is a useful midpoint, sitting about 15.2 miles from Des Plaines and 15.2 miles from Lemont.
How much longer is the road route than the straight-line distance?
The direct path is about 25.6 miles (41.2 km), while the road route adds roughly 4.8 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 7:00 AM to 7:00 PM CDT. If you want a more comfortable same-day return, try to leave by 7:02 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.03 one way or $8.07 round trip. Estimated CO2 is about 9.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Des Plaines and Mostly Sunny near Lemont.
Stop Ideas Near Oak Brook
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 Oak Brook.
La Grange Road
Summit
Naperville
Chicago Union Station
Flight Path Map
This map shows the direct air route between Des Plaines and Lemont. Straight-line distance: 25.59 mi (41.18 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 Lemont
Historic village in the U.
| Population | 17,338 |
| Coordinates | 41.6736400, -88.0017300 |
| Altitude | 185 |
| Country | United States |
End: Lemont (-88.00173, 41.67364)
Estimated Travel Time
Distance: 49 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 00m |
| 40 mph (64.37 km/h) | 00h 45m |
| 50 mph (80.47 km/h) | 00h 36m |
| 60 mph (96.56 km/h) | 00h 30m |
| 70 mph (112.65 km/h) | 00h 26m |
| 80 mph (129 km/h) | 00h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $4.03 | $8.07 |
| Mid-grade | $4.25 | $4.55 | $9.10 |
| Premium | $4.65 | $4.98 | $9.96 |
| Diesel | $5.30 | $5.68 | $11.35 |
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.