How far is Des Plaines, IL from Petersburg, IL?
The driving distance from Des Plaines, IL to Petersburg, IL is about 206.4 miles (332.2 km), with a travel time of about 04h 03m by car.
- The straight-line flight distance is about 173.2 miles (278.7 km).
- For a round trip, plan for roughly 08h 06m 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 04h 03m.
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.
Township in Livingston County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Des Plaines and Petersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Des Plaines and Petersburg.
-
1
Start on Henry Avenue
557 ft · 25 sec · Henry Avenue
-
2
Turn right onto South Des Plaines River Road
1.8 mi · 3 min · South Des Plaines River Road
-
3
Take the ramp slight right toward I 294 South: Indiana
2265 ft · 55 sec
-
4
Merge slight left onto Tri-State Tollway
11.5 mi · 15 min · Tri-State Tollway
-
5
Keep slight left to continue on Tri-State Tollway
4.8 mi · 6 min · Tri-State Tollway
-
6
Keep slight right to continue on Tri-State Tollway
1.2 mi · 1 min · Tri-State Tollway
-
7
Take the exit slight right toward I 55: Chicago, St. Louis
1 km · 1 min
-
8
Keep slight right to continue on I 55 South: Saint Louis
2295 ft · 56 sec
-
9
Merge slight left onto Adlai Stevenson Expressway
119.4 mi · 2 hr 13 min · Adlai Stevenson Expressway
-
10
Keep slight right to continue on I 55 South: Saint Louis, Springfield
47.8 mi · 51 min
-
11
Take the exit slight right toward IL 123: Williamsville
1678 ft · 41 sec
-
12
Keep slight right
112 m · 11 sec
-
13
Turn straight onto County Highway 2
644 ft · 12 sec · County Highway 2
-
14
Continue on Dinius Road
2.9 mi · 4 min · Dinius Road
-
15
Continue on County Road 11 North
3.6 mi · 6 min · County Road 11 North
-
16
Turn right
1.5 mi · 2 min
-
17
Turn left onto Springfield Road
1810 ft · 1 min · Springfield Road
-
18
Continue on East Hargrave Street
2666 ft · 2 min · East Hargrave Street
-
19
At the end of the road, turn right onto North Main Street
1186 ft · 42 sec · North Main Street
-
20
Turn left onto Salem Road
91 m · 9 sec · Salem Road
-
21
Continue on Athens Blacktop Road
6.6 mi · 10 min · Athens Blacktop Road
-
22
Turn right
2.2 mi · 4 min
-
23
Arrive at your destination
0 m · 1 sec · South 6th Street
Car Route Details
A richer read on the saved driving route between Des Plaines and Petersburg.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Adlai Stevenson Expressway
Merge slight left onto Adlai Stevenson Expressway
119 mi · 02h 13m
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.
Mostly Sunny leaving Des Plaines and Sunny near Petersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Des Plaines to Petersburg?
The road trip is about 206.4 miles (332.2 km) and usually takes 04h 03m 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?
Rooks Creek is a useful midpoint, sitting about 103.2 miles from Des Plaines and 103.3 miles from Petersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 173.2 miles (278.7 km), while the road route adds roughly 33.2 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 8:54 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.49 one way or $54.98 round trip. Estimated CO2 is about 64.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Des Plaines and Sunny near Petersburg.
Stop Ideas Near Rooks Creek
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 Rooks Creek.
Pontiac station
Dwight station
Uptown Station
Gilman
Flight Path Map
This map shows the direct air route between Des Plaines and Petersburg. Straight-line distance: 173.19 mi (278.73 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 Petersburg
City in Menard County, Illinois
| Population | 2,190 |
| Coordinates | 40.0117200, -89.8481700 |
| Altitude | 156 |
| Country | United States |
End: Petersburg (-89.84817, 40.01172)
Estimated Travel Time
Distance: 332 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 52m |
| 40 mph (64.37 km/h) | 05h 09m |
| 50 mph (80.47 km/h) | 04h 07m |
| 60 mph (96.56 km/h) | 03h 26m |
| 70 mph (112.65 km/h) | 02h 56m |
| 80 mph (129 km/h) | 02h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $27.49 | $54.98 |
| Mid-grade | $4.25 | $31.00 | $62.01 |
| Premium | $4.65 | $33.93 | $67.86 |
| Diesel | $5.30 | $38.67 | $77.33 |
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.