How far is West Lafayette, IN from Sullivan, IN?
The driving distance from West Lafayette, IN to Sullivan, IN is about 112.5 miles (181.1 km), with a travel time of about 02h 44m by car.
- The straight-line flight distance is about 95.6 miles (153.9 km).
- For a round trip, plan for roughly 05h 28m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 44m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Town in Adams Township, Parke County, Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between West Lafayette and Sullivan.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Lafayette and Sullivan.
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1
Start on Northwestern Avenue
739 ft · 33 sec · Northwestern Avenue
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2
At the end of the road, turn left onto West State Street
1209 ft · 47 sec · West State Street
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3
Turn right onto South River Road
1401 ft · 42 sec · South River Road
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4
Enter the roundabout and take exit 2 toward South River Road
37 m · 5 sec · South River Road
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5
Exit the roundabout onto South River Road
1 mi · 2 min · South River Road
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6
Turn left
27 mi · 41 min
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7
Turn right onto West South Boulevard
13.2 mi · 20 min · West South Boulevard
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8
Turn left
1853 ft · 33 sec
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9
Turn right onto Main Street
2.7 mi · 4 min · Main Street
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10
At the end of the road, turn right
2.6 mi · 4 min
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11
Turn left
27.8 mi · 42 min
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12
Take the ramp right
1398 ft · 34 sec
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13
Merge slight left onto Dwight D Eisenhower Highway
10.4 mi · 11 min · Dwight D Eisenhower Highway
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14
Take the exit slight right toward US 40 East, SR 641 South, SR 46
1463 ft · 25 sec
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15
Keep slight right to continue on US 40 East, SR 46 West
2380 ft · 39 sec
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16
Turn straight
146 m · 16 sec
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17
Continue straight
1533 ft · 39 sec
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18
Turn straight
5.7 mi · 7 min
-
19
Keep slight left
1.3 km · 2 min
-
20
Merge slight left
16.1 mi · 21 min
-
21
Take the exit slight left toward North Section Street
2.7 mi · 5 min · North Section Street
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22
Turn left onto West Wall Street
1065 ft · 49 sec · West Wall Street
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23
Turn right onto North State Street
118 m · 17 sec · North State Street
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24
Arrive at your destination
0 m · 1 sec · South State Street
Car Route Details
A richer read on the saved driving route between West Lafayette and Sullivan.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn left
27.8 mi · 00h 42m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Showers And Thunderstorms leaving West Lafayette and Showers And Thunderstorms near Sullivan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Lafayette to Sullivan?
The road trip is about 112.5 miles (181.1 km) and usually takes 02h 44m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Rockville is a useful midpoint, sitting about 56.3 miles from West Lafayette and 56.3 miles from Sullivan.
How much longer is the road route than the straight-line distance?
The direct path is about 95.6 miles (153.9 km), while the road route adds roughly 16.9 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 1:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.33 one way or $30.66 round trip. Estimated CO2 is about 35.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around West Lafayette and Showers And Thunderstorms near Sullivan.
Stop Ideas Near Rockville
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 Rockville.
Crawfordsville
Crawfordsville (Bus), Indiana
Danville, Illinois
Lafayette station
Flight Path Map
This map shows the direct air route between West Lafayette and Sullivan. Straight-line distance: 95.66 mi (153.95 km).
#1 West Lafayette
The most populous city in Tippecanoe County, Indiana.
| Population | 51,605 |
| Coordinates | 40.4258700, -86.9080700 |
| Altitude | 186 |
| Country | United States |
#2 Sullivan
City in the U.
| Population | 4,089 |
| Coordinates | 39.0953200, -87.4058500 |
| Altitude | 161 |
| Country | United States |
End: Sullivan (-87.40585, 39.09532)
Estimated Travel Time
Distance: 181 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 45m |
| 40 mph (64.37 km/h) | 02h 48m |
| 50 mph (80.47 km/h) | 02h 15m |
| 60 mph (96.56 km/h) | 01h 52m |
| 70 mph (112.65 km/h) | 01h 36m |
| 80 mph (129 km/h) | 01h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $15.33 | $30.66 |
| Mid-grade | $4.46 | $17.69 | $35.37 |
| Premium | $4.99 | $19.80 | $39.60 |
| Diesel | $6.62 | $26.29 | $52.57 |
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 Indiana · Oct 15, 2026