How far is Naperville, IL from Marion, IL?
The driving distance from Naperville, IL to Marion, IL is about 329.8 miles (530.8 km), with a travel time of about 06h 06m by car.
- The straight-line flight distance is about 283.3 miles (455.9 km).
- For a round trip, plan for roughly 12h 13m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 06m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Township in Champaign County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Naperville and Marion.
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville and Marion.
-
1
Start on North Washington Street
15 m · 9 sec · North Washington Street
-
2
Turn left onto East Ogden Avenue
5 mi · 10 min · East Ogden Avenue
-
3
Take the ramp right toward I 355 Toll South: Joliet
1189 ft · 29 sec
-
4
Merge slight left onto Veterans Memorial Tollway
19.2 mi · 22 min · Veterans Memorial Tollway
-
5
Keep slight left to continue on I 80 East: Indiana
1.3 mi · 3 min
-
6
Merge slight left
10.6 mi · 12 min
-
7
Take the exit slight right toward I 57 South: Memphis
3222 ft · 1 min
-
8
Merge slight left
186.7 mi · 3 hr 22 min
-
9
Keep slight left to continue on I 57 South: Memphis
65.7 mi · 1 hr 11 min
-
10
Keep slight right to continue on Ken Gray Expressway
38.7 mi · 42 min · Ken Gray Expressway
-
11
Take the exit slight right toward Marion
1879 ft · 46 sec
-
12
Keep slight left
36 m · 8 sec
-
13
Turn left onto West Main Street
1.5 mi · 3 min · West Main Street
-
14
Turn right
24 m · 11 sec
-
15
Turn left
46 m · 11 sec
-
16
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Naperville and Marion.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 57 South
Merge slight left
187 mi · 03h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Naperville and Sunny near Marion.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Naperville to Marion?
The road trip is about 329.8 miles (530.8 km) and usually takes 06h 06m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Pesotum is a useful midpoint, sitting about 165 miles from Naperville and 164.8 miles from Marion.
How much longer is the road route than the straight-line distance?
The direct path is about 283.3 miles (455.9 km), while the road route adds roughly 46.5 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 6:00 AM to 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.89 one way or $87.79 round trip. Estimated CO2 is about 103.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Naperville and Sunny near Marion.
Stop Ideas Near Pesotum
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 Pesotum.
Illinois Terminal
Rantoul
Mattoon station
Danville, Illinois
Flight Path Map
This map shows the direct air route between Naperville and Marion. Straight-line distance: 283.28 mi (455.89 km).
#1 Naperville
The second most populous city in Illinois.
| Population | 147,986 |
| Coordinates | 41.7858600, -88.1472900 |
| Altitude | 216 |
| Country | United States |
#2 Marion
City in and the county seat of Williamson County, Illinois, United States
| Population | 17,803 |
| Coordinates | 37.7306100, -88.9331300 |
| Altitude | 129 |
| Country | United States |
End: Marion (-88.93313, 37.73061)
Estimated Travel Time
Distance: 531 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 59m |
| 40 mph (64.37 km/h) | 08h 14m |
| 50 mph (80.47 km/h) | 06h 35m |
| 60 mph (96.56 km/h) | 05h 29m |
| 70 mph (112.65 km/h) | 04h 42m |
| 80 mph (129 km/h) | 04h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $43.89 | $87.79 |
| Mid-grade | $4.25 | $49.50 | $99.01 |
| Premium | $4.65 | $54.17 | $108.35 |
| Diesel | $5.30 | $61.74 | $123.48 |
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.