How far is Lafayette, IN from Sullivan, IN?
The driving distance from Lafayette, IN to Sullivan, IN is about 113.4 miles (182.5 km), with a travel time of about 02h 45m by car.
- The straight-line flight distance is about 95.6 miles (153.8 km).
- For a round trip, plan for roughly 05h 31m 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 45m.
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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Lafayette and Sullivan.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lafayette and Sullivan.
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1
Start on the route
56 m · 18 sec
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2
Turn left onto Douglas Street
151 m · 25 sec · Douglas Street
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3
Turn slight left onto South 18th Street
1.4 mi · 3 min · South 18th Street
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4
Turn right onto Teal Road
1 mi · 2 min · Teal Road
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5
Turn left onto Old US Highway 231
1 km · 1 min · Old US Highway 231
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6
Turn right
1.3 km · 1 min
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7
Turn left
25.5 mi · 38 min
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8
Turn right onto West South Boulevard
13.2 mi · 20 min · West South Boulevard
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9
Turn left
1853 ft · 33 sec
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10
Turn right onto Main Street
2.7 mi · 4 min · Main Street
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11
At the end of the road, turn right
2.6 mi · 4 min
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12
Turn left
27.8 mi · 42 min
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13
Take the ramp right
1398 ft · 34 sec
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14
Merge slight left onto Dwight D Eisenhower Highway
10.4 mi · 11 min · Dwight D Eisenhower Highway
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15
Take the exit slight right toward US 40 East, SR 641 South, SR 46
1463 ft · 25 sec
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16
Keep slight right to continue on US 40 East, SR 46 West
2380 ft · 39 sec
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17
Turn straight
146 m · 16 sec
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18
Continue straight
1533 ft · 39 sec
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19
Turn straight
5.7 mi · 7 min
-
20
Keep slight left
1.3 km · 2 min
-
21
Merge slight left
16.1 mi · 21 min
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22
Take the exit slight left toward North Section Street
2.7 mi · 5 min · North Section Street
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23
Turn left onto West Wall Street
1065 ft · 49 sec · West Wall Street
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24
Turn right onto North State Street
118 m · 17 sec · North State Street
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25
Arrive at your destination
0 m · 1 sec · South State Street
Car Route Details
A richer read on the saved driving route between 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.
Sunny leaving Lafayette and Mostly Sunny near Sullivan.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lafayette to Sullivan?
The road trip is about 113.4 miles (182.5 km) and usually takes 02h 45m 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 56.7 miles from Lafayette and 56.7 miles from Sullivan.
How much longer is the road route than the straight-line distance?
The direct path is about 95.6 miles (153.8 km), while the road route adds roughly 17.8 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 12:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.08 one way or $30.17 round trip. Estimated CO2 is about 35.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lafayette and Mostly Sunny 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 Lafayette and Sullivan. Straight-line distance: 95.55 mi (153.77 km).
#1 Lafayette
The most populous city in Tippecanoe County, Indiana.
| Population | 71,484 |
| Coordinates | 40.4167000, -86.8752900 |
| Altitude | 211 |
| 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: 183 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 46m |
| 40 mph (64.37 km/h) | 02h 50m |
| 50 mph (80.47 km/h) | 02h 16m |
| 60 mph (96.56 km/h) | 01h 53m |
| 70 mph (112.65 km/h) | 01h 37m |
| 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 | $3.77 | $15.08 | $30.17 |
| Mid-grade | $4.25 | $17.01 | $34.02 |
| Premium | $4.65 | $18.62 | $37.23 |
| Diesel | $5.30 | $21.22 | $42.43 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.