How far is Naperville, IL from Stillman Valley, IL?
The driving distance from Naperville, IL to Stillman Valley, IL is about 71.3 miles (114.7 km), with a travel time of about 01h 25m by car.
- The straight-line flight distance is about 57.5 miles (92.5 km).
- For a round trip, plan for roughly 02h 50m 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 25m.
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.
The county seat of 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 Naperville and Stillman Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Stillman Valley.
-
1
Start on North Washington Street
15 m · 5 sec · North Washington Street
-
2
Turn right onto West Ogden Avenue
1972 ft · 46 sec · West Ogden Avenue
-
3
Turn right onto Mill Street
1.1 mi · 2 min · Mill Street
-
4
Turn left onto West Diehl Road
1 km · 1 min · West Diehl Road
-
5
Turn right onto Winfield Road
2356 ft · 59 sec · Winfield Road
-
6
Take the ramp slight left toward I 88 West: Aurora
2051 ft · 50 sec
-
7
Merge slight left onto Ronald Reagan Memorial Tollway
11 mi · 13 min · Ronald Reagan Memorial Tollway
-
8
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 mi · 37 min · Ronald Reagan Memorial Tollway
-
9
Take the exit slight right toward I 39 North, US 51 North: Rockford
1.1 km · 1 min
-
10
Merge slight left
13.2 mi · 14 min
-
11
Take the exit slight right toward IL 72: Genoa, Byron
2120 ft · 54 sec
-
12
Turn right
8.3 mi · 12 min
-
13
Arrive at your destination
0 m · 1 sec · West Roosevelt Street
Car Route Details
A richer read on the saved driving route between Naperville and Stillman Valley.
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
Keep slight left to continue on Ronald Reagan Memorial Tollway
34.8 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 Naperville and Mostly Sunny near Stillman Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Stillman Valley?
The road trip is about 71.3 miles (114.7 km) and usually takes 01h 25m 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?
DeKalb is a useful midpoint, sitting about 35.6 miles from Naperville and 35.7 miles from Stillman Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 57.5 miles (92.5 km), while the road route adds roughly 13.8 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:40 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.47 one way or $18.93 round trip. Estimated CO2 is about 22.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Naperville and Mostly Sunny near Stillman Valley.
Stop Ideas Near DeKalb
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 DeKalb.
Plano
Rockford, Illinois
Mendota station
Naperville
Flight Path Map
This map shows the direct air route between Naperville and Stillman Valley. Straight-line distance: 57.5 mi (92.53 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Stillman Valley
Valley in Texas, United States of America
| Population | 1,043 |
| Coordinates | 42.1072500, -89.1792700 |
| Altitude | 217 |
| Country | United States |
End: Stillman Valley (-89.17927, 42.10725)
Estimated Travel Time
Distance: 115 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 22m |
| 40 mph (64.37 km/h) | 01h 46m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 11m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $9.47 | $18.93 |
| Mid-grade | $4.25 | $10.68 | $21.35 |
| Premium | $4.65 | $11.68 | $23.36 |
| Diesel | $5.30 | $13.31 | $26.63 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.