How far is Niles, IL from Sullivan, IL?
The driving distance from Niles, IL to Sullivan, IL is about 214 miles (344.4 km), with a travel time of about 04h 13m by car.
- The straight-line flight distance is about 172.4 miles (277.4 km).
- For a round trip, plan for roughly 08h 27m 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 13m.
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.
Village in Iroquois County, Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Niles and Sullivan.
Turn-by-Turn Driving Directions
Step-by-step road directions between Niles and Sullivan.
-
1
Start on North Waukegan Road
4 m · 5 sec · North Waukegan Road
-
2
Turn right onto West Howard Street
3171 ft · 1 min · West Howard Street
-
3
Turn right onto North Caldwell Avenue
2.9 mi · 4 min · North Caldwell Avenue
-
4
Take the ramp straight toward I 94 East
1370 ft · 35 sec
-
5
Merge slight left onto Edens Expressway
2.1 mi · 2 min · Edens Expressway
-
6
Continue on Kennedy Expressway
8.1 mi · 12 min · Kennedy Expressway
-
7
Continue on Dan Ryan Expressway
2.4 mi · 3 min · Dan Ryan Expressway
-
8
Keep slight left to continue on Dan Ryan Expressway (Express)
8.8 mi · 12 min · Dan Ryan Expressway (Express)
-
9
Keep slight right to continue on I 57 South: Memphis
168.6 mi · 3 hr 6 min
-
10
Take the exit slight right toward IL 16 West: Mattoon
2489 ft · 1 min
-
11
Turn straight onto Charleston Avenue East
2.8 mi · 6 min · Charleston Avenue East
-
12
Turn right onto South 19th Street
2731 ft · 60 sec · South 19th Street
-
13
Turn left onto Dewitt Avenue
2 mi · 3 min · Dewitt Avenue
-
14
Continue on Route 121
14.4 mi · 21 min · Route 121
-
15
Turn left onto North Main Street
534 ft · 25 sec · North Main Street
-
16
Turn right onto West Harrison Street
31 m · 4 sec · West Harrison Street
-
17
Arrive at your destination
0 m · 1 sec · West Harrison Street
Car Route Details
A richer read on the saved driving route between Niles and Sullivan.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 57 South
Keep slight right to continue on I 57 South: Memphis
169 mi · 03h 06m
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.
Rain Showers leaving Niles and Showers And Thunderstorms Likely near Sullivan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Niles to Sullivan?
The road trip is about 214 miles (344.4 km) and usually takes 04h 13m 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?
Onarga is a useful midpoint, sitting about 107 miles from Niles and 107 miles from Sullivan.
How much longer is the road route than the straight-line distance?
The direct path is about 172.4 miles (277.4 km), while the road route adds roughly 41.6 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 8:32 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.22 one way or $70.44 round trip. Estimated CO2 is about 67.1 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Niles and Showers And Thunderstorms Likely near Sullivan.
Stop Ideas Near Onarga
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 Onarga.
Gilman
Kankakee
Rantoul
Dwight station
Flight Path Map
This map shows the direct air route between Niles and Sullivan. Straight-line distance: 172.39 mi (277.43 km).
#1 Niles
City in Trumbull County, Ohio
| Population | 28,615 |
| Coordinates | 42.0189200, -87.8028400 |
| Altitude | 194 |
| Country | United States |
#2 Sullivan
City in Illinois
| Population | 4,400 |
| Coordinates | 39.5994800, -88.6078400 |
| Altitude | 205 |
| Country | United States |
End: Sullivan (-88.60784, 39.59948)
Estimated Travel Time
Distance: 344 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 07m |
| 40 mph (64.37 km/h) | 05h 21m |
| 50 mph (80.47 km/h) | 04h 16m |
| 60 mph (96.56 km/h) | 03h 34m |
| 70 mph (112.65 km/h) | 03h 03m |
| 80 mph (129 km/h) | 02h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.67 | $35.22 | $70.44 |
| Mid-grade | $5.29 | $39.95 | $79.91 |
| Premium | $5.84 | $44.07 | $88.14 |
| Diesel | $6.57 | $49.61 | $99.22 |
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