How far is Arlington Heights, IL from Monmouth, IL?
The driving distance from Arlington Heights, IL to Monmouth, IL is about 219 miles (352.5 km), with a travel time of about 04h 03m by car.
- The straight-line flight distance is about 160.2 miles (257.8 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.
City and county seat of Lee County, Illinois, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Arlington Heights and Monmouth.
Turn-by-Turn Driving Directions
Step-by-step road directions between Arlington Heights and Monmouth.
-
1
Start on East Euclid Avenue
15 m · 6 sec · East Euclid Avenue
-
2
Turn right onto North Arlington Heights Road
3.1 mi · 6 min · North Arlington Heights Road
-
3
Take the ramp slight right toward I 90 Toll West: Rockford
3076 ft · 55 sec
-
4
Merge slight left onto Jane Addams Memorial Tollway
52.5 mi · 56 min · Jane Addams Memorial Tollway
-
5
Take the exit slight right toward I-39 South, US 51 South: Bloomington
1.1 km · 1 min
-
6
Merge slight right
2475 ft · 30 sec
-
7
Continue straight
2.1 mi · 2 min
-
8
Keep slight right
22.3 mi · 24 min
-
9
Take the exit slight right toward I 88 West Toll: Moline, Rock Island
2931 ft · 50 sec
-
10
Merge slight left onto Ronald Reagan Memorial Tollway
33.8 mi · 36 min · Ronald Reagan Memorial Tollway
-
11
Continue on Ronald Reagan Memorial Highway
1.1 mi · 1 min · Ronald Reagan Memorial Highway
-
12
Continue on Ronald Reagan Memorial Highway
37.8 mi · 40 min · Ronald Reagan Memorial Highway
-
13
Continue on Chicago-Kansas City Expressway
5.4 mi · 6 min · Chicago-Kansas City Expressway
-
14
Take the exit slight right toward I 80: Peoria
7.1 mi · 8 min
-
15
Keep slight left to continue on Chicago-Kansas City Expressway
31.3 mi · 34 min · Chicago-Kansas City Expressway
-
16
Take the exit slight right toward US 34 West: Monmouth
19.1 mi · 23 min
-
17
Turn left onto North Main Street
1.5 km · 2 min · North Main Street
-
18
Enter the roundabout and take exit 3 toward Public Square
94 m · 6 sec · East Broadway
-
19
Exit the rotary onto East Broadway
90 m · 10 sec · East Broadway
-
20
Turn right onto South 1st Street
65 m · 9 sec · South 1st Street
-
21
Arrive at your destination
0 m · 1 sec · South 1st Street
Car Route Details
A richer read on the saved driving route between Arlington Heights and Monmouth.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Jane Addams Memorial Tollway
Merge slight left onto Jane Addams Memorial Tollway
52.5 mi · 00h 56m
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 Arlington Heights and Slight Chance Showers And Thunderstorms then Mostly Cloudy near Monmouth.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Arlington Heights to Monmouth?
The road trip is about 219 miles (352.5 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?
Dixon is a useful midpoint, sitting about 109.4 miles from Arlington Heights and 109.6 miles from Monmouth.
How much longer is the road route than the straight-line distance?
The direct path is about 160.2 miles (257.8 km), while the road route adds roughly 58.8 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 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 $29.15 one way or $58.30 round trip. Estimated CO2 is about 68.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Arlington Heights and Slight Chance Showers And Thunderstorms then Mostly Cloudy near Monmouth.
Stop Ideas Near Dixon
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 Dixon.
Mendota station
Princeton
Rockford, Illinois
Kewanee
Flight Path Map
This map shows the direct air route between Arlington Heights and Monmouth. Straight-line distance: 160.16 mi (257.76 km).
#1 Arlington Heights
Village in Cook County, Illinois, United States; suburb of Chicago, Illinois
| Population | 75,101 |
| Coordinates | 42.0883600, -87.9806300 |
| Altitude | 214 |
| Country | United States |
#2 Monmouth
City in Warren County, Illinois, United States
| Population | 8,801 |
| Coordinates | 40.9114300, -90.6473600 |
| Altitude | 232 |
| Country | United States |
End: Monmouth (-90.64736, 40.91143)
Estimated Travel Time
Distance: 353 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 17m |
| 40 mph (64.37 km/h) | 05h 28m |
| 50 mph (80.47 km/h) | 04h 22m |
| 60 mph (96.56 km/h) | 03h 39m |
| 70 mph (112.65 km/h) | 03h 07m |
| 80 mph (129 km/h) | 02h 43m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $29.15 | $58.30 |
| Mid-grade | $4.25 | $32.88 | $65.75 |
| Premium | $4.65 | $35.98 | $71.95 |
| Diesel | $5.30 | $41.00 | $82.00 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.