How far is Saint John, IN from Lafayette, IN?
The driving distance from Saint John, IN to Lafayette, IN is about 88.8 miles (142.9 km), with a travel time of about 01h 35m by car.
- The straight-line flight distance is about 77.9 miles (125.3 km).
- For a round trip, plan for roughly 03h 10m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CST.
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 01h 35m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Indiana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Saint John and Lafayette.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint John and Lafayette.
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1
Start on West 93rd Avenue
12 m · 9 sec · West 93rd Avenue
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2
Turn left onto Wicker Avenue
2 mi · 3 min · Wicker Avenue
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3
Turn left onto West 109th Avenue
5.5 mi · 9 min · West 109th Avenue
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4
At the end of the road, turn right onto South Court Street
43 m · 8 sec · South Court Street
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5
Turn left onto West Joliet Street
2.7 mi · 4 min · West Joliet Street
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6
Take the ramp slight right toward I 65 South
2547 ft · 1 min
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7
Merge slight left onto Casimir Pulaski Memorial Highway
71.5 mi · 1 hr 17 min · Casimir Pulaski Memorial Highway
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8
Take the exit slight right toward SR 25: Delphi, Lafayette
1911 ft · 44 sec
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9
Turn right onto Schuyler Avenue
1.9 mi · 3 min · Schuyler Avenue
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10
Turn left onto North 18th Street
1.6 mi · 4 min · North 18th Street
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11
Turn left onto South Street
151 m · 14 sec · South Street
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12
Turn right onto Grant Street
11 m · 2 sec · Grant Street
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13
Turn right onto Douglas Street
50 m · 13 sec · Douglas Street
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14
Turn left
56 m · 13 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Saint John and Lafayette.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Casimir Pulaski Memorial Highway
Merge slight left onto Casimir Pulaski Memorial Highway
71.5 mi · 01h 17m
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.
Partly Sunny leaving Saint John and Partly Sunny near Lafayette.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint John to Lafayette?
The road trip is about 88.8 miles (142.9 km) and usually takes 01h 35m 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?
Rensselaer is a useful midpoint, sitting about 43.1 miles from Saint John and 45.7 miles from Lafayette.
How much longer is the road route than the straight-line distance?
The direct path is about 77.9 miles (125.3 km), while the road route adds roughly 10.9 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 CST. If you want a more comfortable same-day return, try to leave by 3:20 PM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.73 one way or $23.46 round trip. Estimated CO2 is about 27.8 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Saint John and Lafayette, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Partly Sunny around Saint John and Partly Sunny near Lafayette.
Stop Ideas Near Rensselaer
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 Rensselaer.
Rensselaer
Lafayette station
Kankakee
Dyer station
Flight Path Map
This map shows the direct air route between Saint John and Lafayette. Straight-line distance: 77.85 mi (125.29 km).
#1 Saint John
Saint John is a place in Indiana, United States.
| Population | 0 |
| Coordinates | 41.4500400, -87.4700400 |
| Altitude | 221 |
| 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: 143 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 57m |
| 40 mph (64.37 km/h) | 02h 13m |
| 50 mph (80.47 km/h) | 01h 46m |
| 60 mph (96.56 km/h) | 01h 28m |
| 70 mph (112.65 km/h) | 01h 16m |
| 80 mph (129 km/h) | 01h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.75 | $11.73 | $23.46 |
| Mid-grade | $4.35 | $13.62 | $27.23 |
| Premium | $4.88 | $15.28 | $30.56 |
| Diesel | $6.73 | $21.06 | $42.13 |
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 · Nov 05, 2026