How far is Sullivan, IN from Lafayette, IN?
The driving distance from Sullivan, IN to Lafayette, IN is about 114.5 miles (184.3 km), with a travel time of about 02h 17m by car.
- The straight-line flight distance is about 95.6 miles (153.8 km).
- For a round trip, plan for roughly 04h 35m 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 17m.
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.
Slight Chance Showers And Thunderstorms
Scattered Rain Showers then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Sullivan and Lafayette.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sullivan and Lafayette.
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1
Start on South State Street
9 m · 7 sec · South State Street
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2
Turn left onto East Washington Street
1067 ft · 37 sec · East Washington Street
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3
Turn right onto North Section Street
2.5 mi · 4 min · North Section Street
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4
Take the ramp straight toward North Section Street
1193 ft · 33 sec · North Section Street
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5
Merge slight left
16.2 mi · 22 min
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6
Take the exit slight right toward SR 641 North
2219 ft · 42 sec
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7
Continue straight
5.5 mi · 6 min
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8
Take the exit slight right toward I-70 East: Indianapolis
3072 ft · 58 sec
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9
Merge slight left onto Dwight D Eisenhower Highway
10.7 mi · 12 min · Dwight D Eisenhower Highway
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10
Take the exit slight right toward SR 59: Brazil, Linton
1730 ft · 35 sec
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11
Turn left onto State Route 59
3.8 mi · 5 min · State Route 59
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12
Continue on South Forest Avenue
24.1 mi · 37 min · South Forest Avenue
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13
At the end of the road, turn right
2.6 mi · 4 min
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14
Turn left
2.7 mi · 4 min
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15
Turn left onto Cross Street
1853 ft · 33 sec · Cross Street
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16
Turn right
13.2 mi · 20 min
-
17
Turn left onto South Washington Street
11.7 mi · 18 min · South Washington Street
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18
Continue on Holden Street
137 m · 8 sec · Holden Street
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19
Turn slight left onto North Main Street
104 m · 6 sec · North Main Street
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20
Continue on Base Line Road
1.6 mi · 2 min · Base Line Road
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21
Continue on Base Line Rd
4 mi · 6 min · Base Line Rd
-
22
Continue on Base Line Road
8.1 mi · 12 min · Base Line Road
-
23
Turn right
1.3 km · 1 min
-
24
Turn left onto Old US Highway 231
1.7 mi · 3 min · Old US Highway 231
-
25
Turn left onto South 18th Street
1.4 mi · 3 min · South 18th Street
-
26
Turn right onto Douglas Street
151 m · 24 sec · Douglas Street
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27
Turn right
56 m · 13 sec
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28
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Sullivan and Lafayette.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
South Forest Avenue
Continue on South Forest Avenue
24.1 mi · 00h 37m
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.
Slight Chance Showers And Thunderstorms leaving Sullivan and Scattered Rain Showers then Mostly Sunny near Lafayette.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sullivan to Lafayette?
The road trip is about 114.5 miles (184.3 km) and usually takes 02h 17m 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 56.5 miles from Sullivan and 58 miles from Lafayette.
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 18.9 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 1:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.23 one way or $30.47 round trip. Estimated CO2 is about 35.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around Sullivan and Scattered Rain Showers then Mostly Sunny near Lafayette.
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 Sullivan and Lafayette. Straight-line distance: 95.55 mi (153.77 km).
#1 Sullivan
City in the U.
| Population | 4,089 |
| Coordinates | 39.0953200, -87.4058500 |
| Altitude | 161 |
| Country | United States |
#2 Lafayette
The most populous city in Tippecanoe County, Indiana.
| Population | 71,484 |
| Coordinates | 40.4167000, -86.8752900 |
| Altitude | 211 |
| Country | United States |
End: (-86.875433, 40.416605)
Estimated Travel Time
Distance: 184 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 48m |
| 40 mph (64.37 km/h) | 02h 51m |
| 50 mph (80.47 km/h) | 02h 17m |
| 60 mph (96.56 km/h) | 01h 54m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $15.23 | $30.47 |
| Mid-grade | $4.25 | $17.18 | $34.36 |
| Premium | $4.65 | $18.80 | $37.60 |
| Diesel | $5.30 | $21.43 | $42.86 |
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.