How far is Posen, IL from Des Plaines, IL?
The driving distance from Posen, IL to Des Plaines, IL is about 316.8 miles (509.8 km), with a travel time of about 05h 07m by car.
- The straight-line flight distance is about 271.8 miles (437.5 km).
- For a round trip, plan for roughly 10h 15m 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 07m.
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.
City in Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Posen and Des Plaines.
Turn-by-Turn Driving Directions
Step-by-step road directions between Posen and Des Plaines.
-
1
Start on Posen Road
2.9 mi · 11 min · Posen Road
-
2
Turn right
9.7 mi · 11 min
-
3
Take the exit right
1855 ft · 45 sec
-
4
Merge slight left
10.3 mi · 11 min
-
5
Take the exit slight right toward US 51: Centralia, Ashley
1557 ft · 39 sec
-
6
Turn left onto United States Route 51
8.8 mi · 11 min · United States Route 51
-
7
Continue on Elm Street
2.6 mi · 6 min · Elm Street
-
8
Continue on South Broadway
1.4 km · 1 min · South Broadway
-
9
Continue on County Road 180 East
4.3 mi · 6 min · County Road 180 East
-
10
Continue on South Mine Street
3231 ft · 54 sec · South Mine Street
-
11
Continue on N Mine St
990 ft · 13 sec · N Mine St
-
12
Continue on North Mine Street
106 m · 5 sec · North Mine Street
-
13
Take the exit slight right
41 m · 4 sec
-
14
Turn right
7.8 mi · 9 min
-
15
Turn left
2149 ft · 54 sec
-
16
Merge slight left
46.6 mi · 50 min
-
17
Keep slight left to continue on I 57 North: Chicago
185.5 mi · 3 hr 21 min
-
18
Take the exit slight right toward IL 83, I 294 Toll North: Sibley Boulevard, 147th Street, Wisconsin
1718 ft · 33 sec
-
19
Keep slight right to continue on I 294 Toll North: Wisconsin
1.8 mi · 3 min
-
20
Merge slight left onto Tri-State Tollway
20.8 mi · 26 min · Tri-State Tollway
-
21
Keep slight left to continue on Tri-State Tollway
11.7 mi · 15 min · Tri-State Tollway
-
22
Take the exit slight right toward Touhy Avenue
635 ft · 16 sec
-
23
Keep slight left to continue on Touhy Avenue
2694 ft · 1 min
-
24
Keep slight left to continue on Touhy Avenue West
688 ft · 17 sec
-
25
Keep slight right to continue on Touhy Avenue West
1799 ft · 44 sec
-
26
Turn straight onto East Touhy Avenue
99 m · 7 sec · East Touhy Avenue
-
27
Turn slight right
103 m · 9 sec
-
28
Turn right onto South Des Plaines River Road
1.7 mi · 3 min · South Des Plaines River Road
-
29
Turn left onto Henry Avenue
557 ft · 24 sec · Henry Avenue
-
30
Arrive at your destination
0 m · 1 sec · Henry Avenue
Car Route Details
A richer read on the saved driving route between Posen and Des Plaines.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 57 North
Keep slight left to continue on I 57 North: Chicago
185 mi · 03h 21m
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.
Showers And Thunderstorms Likely leaving Posen and Showers And Thunderstorms near Des Plaines.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Posen to Des Plaines?
The road trip is about 316.8 miles (509.8 km) and usually takes 05h 07m 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?
Tolono is a useful midpoint, sitting about 159.5 miles from Posen and 157.3 miles from Des Plaines.
How much longer is the road route than the straight-line distance?
The direct path is about 271.8 miles (437.5 km), while the road route adds roughly 45 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 6:44 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $52.15 one way or $104.31 round trip. Estimated CO2 is about 99.4 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Posen and Showers And Thunderstorms near Des Plaines.
Stop Ideas Near Tolono
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 Tolono.
Illinois Terminal
Rantoul
Danville, Illinois
Mattoon station
Flight Path Map
This map shows the direct air route between Posen and Des Plaines. Straight-line distance: 271.86 mi (437.51 km).
#1 Posen
Village in United States of America
| Population | 5,794 |
| Coordinates | 38.2583800, -89.3356400 |
| Altitude | 149 |
| Country | United States |
#2 Des Plaines
The most populous city in Cook County, Illinois.
| Population | 58,179 |
| Coordinates | 42.0333600, -87.8834000 |
| Altitude | 193 |
| Country | United States |
End: Henry Avenue (-87.883408, 42.033456)
Estimated Travel Time
Distance: 510 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 33m |
| 40 mph (64.37 km/h) | 07h 55m |
| 50 mph (80.47 km/h) | 06h 20m |
| 60 mph (96.56 km/h) | 05h 16m |
| 70 mph (112.65 km/h) | 04h 31m |
| 80 mph (129 km/h) | 03h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $52.15 | $104.31 |
| Mid-grade | $5.29 | $59.16 | $118.33 |
| Premium | $5.84 | $65.26 | $130.52 |
| Diesel | $6.57 | $73.46 | $146.93 |
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 · Oct 15, 2026