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Trip from Lafayette, IN to Saint John, IN

Last recalculated Apr 17, 2026

Drive Time

1h 43m

Distance

86.4 mi

139 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$14

one way

EV Charging

Unknown

Best Time to Leave

Save up to 23 min
4 AM
1h 36m ★
6 AM
1h 44m
8 AM
1h 59m
10 AM
1h 49m
12 PM
1h 48m
3 PM
1h 50m
5 PM
1h 59m
8 PM
1h 39m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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Downtown Lafayette, IN, IN

Lafayette, IN

Wikimedia Commons

town in Lake County, Indiana, United States

Saint John, IN

Wikimedia Commons

Trip Overview

The drive from Lafayette, IN to Saint John, IN covers 86.4 miles and takes about 1h 43m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 65, West 109th Avenue, US 231 for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 71.4 miles on I 65. At current regular gas prices, budget about $13.51 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Midpoint

43.2 miles from Lafayette, IN

A natural place for your longest stop of the day , about 50m into the drive .

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 43m. Total distance: 86.4 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 43m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (86%). Straightforward navigation.

Drive Character

This is a 1h 43m highway drive covering 86.4 miles, with most of the trip on I 65 and West 109th Avenue. The longest continuous stretch is about 71.4 miles on I 65.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 18 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 65 is the longest continuous segment at about 71.4 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 65 and West 109th Avenue. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Douglas Street.

Driving Effort 4/10

Easy - simple navigation with a manageable amount of wheel time

Balances navigation complexity with total wheel time.

This is a straightforward 1h 43m drive. You will face about 15 decision points, but nothing that requires special attention if you follow navigation.

Where does it get tricky?

The main spots that need attention: near the start (Douglas Street): Navigation decision point; at 3.8 miles: Complex interchange - multiple decisions in a short stretch; at 75.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.

Critical Maneuvers

5 of 15 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

5
0 mi into trip | ~0m in | Douglas Street

Turn right onto Douglas Street

Navigation decision point

6
3.8 mi into trip | ~7m in

Turn left toward I 65 North

Complex interchange - multiple decisions in a short stretch

Toward I 65 North
7
75.4 mi into trip | ~1h 25m in

Take the exit toward US 231: Crown Point

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 247 Toward US 231: Crown Point
6
78.9 mi into trip | ~1h 31m in | US 231; SR 55 / West Clark Street

Turn left onto US 231; SR 55 / West Clark Street

Lane positioning matters here

Use the left lane.
6
79 mi into trip | ~1h 31m in | US 231 / West 109th Avenue

Turn right onto US 231 / West 109th Avenue

Lane positioning matters here

Use the left lane.

Main Roads

Road Distance Duration
I 65 71.4 mi 1h 16m
West 109th Avenue 5.5 mi 9m
US 231 2.9 mi 4m
Wicker Avenue 2 mi 3m
Schuyler Avenue 1.9 mi 3m
North 18th Street 1.6 mi 3m
Hoosier Heartland Highway 0.1 mi <1m
South Street <0.1 mi <1m
Longest stretch: I 65 — 71.4 mi, about 1h 16m

Turn-by-Turn Driving Directions

Step-by-step road directions between Lafayette, IN and Saint John, IN.

1

Start on this road

184 ft · 15 sec · this road
2

Turn right onto Douglas Street

165 ft · 8 sec · Douglas Street
3

Turn left onto Grant Street

34 ft · 6 sec · Grant Street
4

Turn left onto South Street

494 ft · 16 sec · South Street
5

Turn right onto North 18th Street

1.6 mi · 3 min · North 18th Street
6

Turn right onto Schuyler Avenue

1.9 mi · 3 min · Schuyler Avenue
7

Continue on SR 25

0.1 mi · 23 sec · Hoosier Heartland Highway
8

Turn left

0.3 mi · 35 sec
Toward I 65 North
9

Merge onto I 65

71 mi · 1 hr 16 min · I 65
10

Take the exit

0.5 mi · 52 sec
Exit 247 Toward US 231: Crown Point Use the slight right lane.
11

At end of road, turn left onto US 231

2.9 mi · 4 min · US 231
12

Turn right onto US 231; SR 55

399 ft · 12 sec · South Main Street
13

Turn left onto US 231; SR 55

295 ft · 7 sec · West Clark Street
Use the left lane.
14

Turn left onto US 231; SR 55

240 ft · 9 sec · North Court Street
15

Turn right onto US 231

5.5 mi · 9 min · West 109th Avenue
Use the left lane.
16

Turn right onto US 41

2.0 mi · 3 min · Wicker Avenue
Use the left lane.
17

Turn right onto West 93rd Avenue

39 ft · 1 sec · West 93rd Avenue
18

Arrive at destination

West 93rd Avenue

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 43.2 miles from Lafayette, IN, or about 50m into the drive.
The longest continuous stretch on this route runs about 71.4 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 19 miles or 24m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 43.2 miles or 50m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 1h 23m

Traffic, exits, and arrival timing usually matter more near Saint John, IN than in the middle of the route.

Before You Leave

+

Open the route before leaving Lafayette, IN so your first major turns are already loaded.

Day 1

Settle into the route from Lafayette, IN

This is one driving day of about 86.4 miles and 1h 43m.

Your first comfortable stop window is around 19 miles from Lafayette, IN.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 65 for about 71.4 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 43.2 mi from Lafayette, IN · 50m into the drive

Downtown Roselawn, IN, IN

Mid-route town

Meal stop

Roselawn, IN

43 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Brookston, IN

Fuel and coffee

A short stop after about 19 miles helps settle the day before fatigue starts building.

Rensselaer, IN

Meal break

The midpoint is around 43.2 miles from Lafayette, IN, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before I 65 if your tank is already low. That segment runs about 71.4 miles.

Arriving in Saint John, IN

The final approach into Saint John, IN usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

National Parks Near This Route

Worth a detour if your schedule allows.

Indiana Dunes National Park

Indiana Dunes National Park

National Park

Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving a rich mosaic of habitats along these 15 miles of Indiana coast. Over 50 miles of trails...

20 mi from route ~51 min detour $20 near mile 77.5
Park Closure: Partial Closures to Marquette Greenway Trail and Glenwood Dunes Trail
Park Closure: Mount Baldy Closure
View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

Fuel & Cost

Regular Gas

$13.51 one way

$27.02 round trip

$3.97/gal 25.4 MPG avg 30 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $14.83 $29.66
premium $4.89 $16.63 $33.25
diesel $5.61 $19.08 $38.15

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$14

Meals

$25–$50

Total

$39–$64

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 30.2 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $9 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 25.9 0 $9.07 $4.15
Efficient EV 21.6 0 $7.56 $3.46
EV Truck/SUV 34.6 0 $12.10 $5.53

Gas CO2

30 kg

EV CO2

10 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 15, 2026

Origin

Lafayette, IN

Night in Lafayette on Thursday

Local time

10:51 PM

EDT

Current temp

73°F

Unavailable

Live forecast

Destination

Saint John, IN

Night in Saint John on Thursday

Local time

9:51 PM

CDT

Current temp

69°F

Unavailable

Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

1 hour earlier

The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.

Temperature spread

4 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 43m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Lafayette, IN to Saint John, IN covers 86.4 miles and takes about 1h 43m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 65, West 109th Avenue, US 231. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 43.2 miles from Lafayette, IN. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $13.51 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a straightforward 1h 43m drive. You will face about 15 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: near the start (Douglas Street): Navigation decision point; at 3.8 miles: Complex interchange - multiple decisions in a short stretch; at 75.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
The route from Lafayette, IN to Saint John, IN does not surface many named destination signs beyond the main corridor.
Yes. Nearby national parks include Indiana Dunes National Park.

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