How far is Des Plaines, IL from Somerset, IL?
The driving distance from Des Plaines, IL to Somerset, IL is about 358 miles (576.2 km), with a travel time of about 07h 05m by car.
- The straight-line flight distance is about 304.1 miles (489.4 km).
- For a round trip, plan for roughly 14h 10m 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 07h 05m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Douglas County, Illinois
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Des Plaines and Somerset.
Turn-by-Turn Driving Directions
Step-by-step road directions between Des Plaines and Somerset.
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1
Start on Henry Avenue
557 ft · 25 sec · Henry Avenue
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2
Turn right onto South Des Plaines River Road
1.8 mi · 3 min · South Des Plaines River Road
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3
Take the ramp slight right toward I 294 South: Indiana
2265 ft · 55 sec
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4
Merge slight left onto Tri-State Tollway
11.5 mi · 15 min · Tri-State Tollway
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5
Keep slight left to continue on Tri-State Tollway
4.8 mi · 6 min · Tri-State Tollway
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6
Keep slight right to continue on Tri-State Tollway
3.5 mi · 4 min · Tri-State Tollway
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7
Continue on Mile-Long Bridge
1.5 km · 1 min · Mile-Long Bridge
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8
Continue on Tri-State Tollway
8.5 mi · 11 min · Tri-State Tollway
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9
Take the exit slight right toward IL 50 South, IL 83: Cicero Avenue, 127th Street
1162 ft · 28 sec
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10
Keep slight left to continue on IL 50 South: Cicero Avenue
2529 ft · 1 min
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11
Turn straight onto Cicero Avenue
4.9 mi · 8 min · Cicero Avenue
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12
Turn left onto 167th Street
855 ft · 26 sec · 167th Street
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13
Take the ramp slight right toward I 57 South: Kankakee, I-80
3048 ft · 1 min
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14
Merge slight left
188.4 mi · 3 hr 24 min
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15
Keep slight left to continue on I 57 South: Memphis
65.7 mi · 1 hr 11 min
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16
Keep slight right to continue on Ken Gray Expressway
20 mi · 22 min · Ken Gray Expressway
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17
Take the exit slight right toward IL 14: Christopher, Benton
1972 ft · 50 sec
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18
Turn left onto West Main Street
1.4 km · 1 min · West Main Street
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19
Enter the roundabout and take exit 2 toward Public Square
115 m · 8 sec · East Main Street
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20
Exit the rotary onto East Main Street
31.6 mi · 48 min · East Main Street
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21
Turn left
1 km · 51 sec
-
22
Turn right onto North Commercial Street
1.2 mi · 2 min · North Commercial Street
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23
Turn left onto Highway 145
5.9 mi · 10 min · Highway 145
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24
Turn left
2.8 mi · 4 min
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25
Turn left onto Deneal Road
1.4 mi · 5 min · Deneal Road
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26
Continue on Deneal Road
1.3 km · 3 min · Deneal Road
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27
Continue on Deneal Road
1894 ft · 1 min · Deneal Road
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28
Turn sharp right onto Somerset Road
35 m · 5 sec · Somerset Road
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29
Arrive at your destination
0 m · 1 sec · Somerset Road
Car Route Details
A richer read on the saved driving route between Des Plaines and Somerset.
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
188 mi · 03h 24m
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.
Showers And Thunderstorms leaving Des Plaines and Slight Chance Showers And Thunderstorms near Somerset.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Des Plaines to Somerset?
The road trip is about 358 miles (576.2 km) and usually takes 07h 05m 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?
Arcola is a useful midpoint, sitting about 179.1 miles from Des Plaines and 178.9 miles from Somerset.
How much longer is the road route than the straight-line distance?
The direct path is about 304.1 miles (489.4 km), while the road route adds roughly 53.9 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 $47.67 one way or $95.33 round trip. Estimated CO2 is about 112.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Des Plaines and Slight Chance Showers And Thunderstorms near Somerset.
Stop Ideas Near Arcola
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 Arcola.
Mattoon station
Illinois Terminal
Effingham
Rantoul
Flight Path Map
This map shows the direct air route between Des Plaines and Somerset. Straight-line distance: 304.07 mi (489.36 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 Somerset
Unincorporated community in Illinois
| Population | 3,955 |
| Coordinates | 37.6544900, -88.4572700 |
| Altitude | 139 |
| Country | United States |
End: Somerset (-88.45727, 37.65449)
Estimated Travel Time
Distance: 576 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 55m |
| 40 mph (64.37 km/h) | 08h 57m |
| 50 mph (80.47 km/h) | 07h 09m |
| 60 mph (96.56 km/h) | 05h 58m |
| 70 mph (112.65 km/h) | 05h 06m |
| 80 mph (129 km/h) | 04h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $47.67 | $95.33 |
| Mid-grade | $4.25 | $53.76 | $107.52 |
| Premium | $4.65 | $58.83 | $117.65 |
| Diesel | $5.30 | $67.04 | $134.09 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.