How far is Mount Prospect, IL from Joliet, IL?
The driving distance from Mount Prospect, IL to Joliet, IL is about 47.3 miles (76.2 km), with a travel time of about 00h 59m by car.
- The straight-line flight distance is about 38.2 miles (61.4 km).
- For a round trip, plan for roughly 01h 59m 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 00h 59m.
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.
Town 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 Mount Prospect and Joliet.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Prospect and Joliet.
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1
Start on the route
16 m · 6 sec
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2
Turn right onto West Central Road
2.3 mi · 4 min · West Central Road
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3
Keep slight left to continue on West Central Road
1.1 mi · 2 min · West Central Road
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4
Turn left onto South New Wilke Road
1.1 km · 2 min · South New Wilke Road
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5
Turn right onto West Algonquin Road
1.5 mi · 2 min · West Algonquin Road
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6
Take the ramp slight right toward IL 53 South
1577 ft · 39 sec
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7
Merge slight left
6.3 mi · 8 min
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8
Keep slight left to continue on I 355 South Tollway: Joliet
31.4 mi · 37 min
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9
Take the exit slight right toward US 6: Southwest Highway
2125 ft · 52 sec
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10
Turn right onto Maple Road
5.7 mi · 11 min · Maple Road
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11
Turn left onto North Ottawa Street
2196 ft · 1 min · North Ottawa Street
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12
Turn right
34 m · 8 sec
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13
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Mount Prospect and Joliet.
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 355 South Tollway
Keep slight left to continue on I 355 South Tollway: Joliet
31.4 mi · 00h 37m
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 Mount Prospect and Mostly Sunny near Joliet.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mount Prospect to Joliet?
The road trip is about 47.3 miles (76.2 km) and usually takes 00h 59m 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?
Lisle is a useful midpoint, sitting about 25.1 miles from Mount Prospect and 22.2 miles from Joliet.
How much longer is the road route than the straight-line distance?
The direct path is about 38.2 miles (61.4 km), while the road route adds roughly 9.1 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 4:30 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.30 one way or $12.60 round trip. Estimated CO2 is about 14.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Mount Prospect and Mostly Sunny near Joliet.
Stop Ideas Near Lisle
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 Lisle.
Naperville
La Grange Road
Summit
Joliet Transportation Center
Flight Path Map
This map shows the direct air route between Mount Prospect and Joliet. Straight-line distance: 38.15 mi (61.39 km).
#1 Mount Prospect
Village in Elk Grove and Wheeling Townships in Cook County, Illinois, United States
| Population | 53,299 |
| Coordinates | 42.0664200, -87.9372900 |
| Altitude | 204 |
| Country | United States |
#2 Joliet
The second most populous city in Will County, Illinois.
| Population | 85,583 |
| Coordinates | 41.5251900, -88.0834000 |
| Altitude | 165 |
| Country | United States |
End: (-88.083409, 41.525419)
Estimated Travel Time
Distance: 76 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 34m |
| 40 mph (64.37 km/h) | 01h 11m |
| 50 mph (80.47 km/h) | 00h 56m |
| 60 mph (96.56 km/h) | 00h 47m |
| 70 mph (112.65 km/h) | 00h 40m |
| 80 mph (129 km/h) | 00h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $6.30 | $12.60 |
| Mid-grade | $4.25 | $7.10 | $14.21 |
| Premium | $4.65 | $7.77 | $15.54 |
| Diesel | $5.30 | $8.86 | $17.72 |
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.