How far is Naperville, IL from Smithton, IL?
The driving distance from Naperville, IL to Smithton, IL is about 280.3 miles (451.1 km), with a travel time of about 05h 24m by car.
- The straight-line flight distance is about 252.9 miles (407 km).
- For a round trip, plan for roughly 10h 49m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 24m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Unincorporated community in Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Mostly Cloudy
Partly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Naperville and Smithton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Smithton.
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1
Start on North Washington Street
5.3 mi · 12 min · North Washington Street
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2
Turn right onto Washington Street
2580 ft · 51 sec · Washington Street
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3
Continue on Weber Road
3.9 mi · 7 min · Weber Road
-
4
Take the ramp slight right toward I 55 South: Bloomington
1902 ft · 49 sec
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5
Merge slight left
105.9 mi · 1 hr 55 min
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6
Keep slight right to continue on I 55 South: Saint Louis, Springfield
64.8 mi · 1 hr 10 min
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7
Keep slight left to continue on I 55 South: Saint Louis
77.9 mi · 1 hr 24 min
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8
Take the exit slight right toward IL 159 South: Collinsville
1434 ft · 48 sec
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9
Continue on Vandalia Street
3 mi · 5 min · Vandalia Street
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10
Continue on South Morrison Avenue
1.3 mi · 2 min · South Morrison Avenue
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11
Continue on North Illinois Street
9.8 mi · 15 min · North Illinois Street
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12
Enter the roundabout and take exit 2 toward Illinois Street
55 m · 5 sec · South Illinois Street
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13
Exit the rotary onto South Illinois Street
7.4 mi · 11 min · South Illinois Street
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14
Turn left onto Breckenridge Street
11 m · 2 sec · Breckenridge Street
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15
Arrive at your destination
0 m · 1 sec · Breckenridge Street
Car Route Details
A richer read on the saved driving route between Naperville and Smithton.
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 55 South
Merge slight left
106 mi · 01h 55m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Rain Showers then Mostly Cloudy leaving Naperville and Partly Sunny then Chance Showers And Thunderstorms near Smithton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Smithton?
The road trip is about 280.3 miles (451.1 km) and usually takes 05h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Lawndale is a useful midpoint, sitting about 140.2 miles from Naperville and 140.1 miles from Smithton.
How much longer is the road route than the straight-line distance?
The direct path is about 252.9 miles (407 km), while the road route adds roughly 27.4 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 6:10 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $37.30 one way or $74.59 round trip. Estimated CO2 is about 87.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Mostly Cloudy around Naperville and Partly Sunny then Chance Showers And Thunderstorms near Smithton.
Stop Ideas Near Lawndale
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Route 66 Original Alignment- Driveable!
City of Lincoln
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lawndale.
Lincoln
Uptown Station
Springfield station
Peoria, Illinois
Flight Path Map
This map shows the direct air route between Naperville and Smithton. Straight-line distance: 252.87 mi (406.96 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Smithton
Borough in Westmoreland County, Pennsylvania, United States of America
| Population | 3,812 |
| Coordinates | 38.4086600, -89.9920500 |
| Altitude | 145 |
| Country | United States |
End: Smithton (-89.99205, 38.40866)
Estimated Travel Time
Distance: 451 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 20m |
| 40 mph (64.37 km/h) | 07h 00m |
| 50 mph (80.47 km/h) | 05h 36m |
| 60 mph (96.56 km/h) | 04h 40m |
| 70 mph (112.65 km/h) | 04h 00m |
| 80 mph (129 km/h) | 03h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $37.30 | $74.59 |
| Mid-grade | $4.25 | $42.06 | $84.12 |
| Premium | $4.65 | $46.03 | $92.06 |
| Diesel | $5.30 | $52.46 | $104.91 |
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 · May 24, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.