How far is Dayton, IN from Saint Joseph, IN?
The driving distance from Dayton, IN to Saint Joseph, IN is about 163.1 miles (262.5 km), with a travel time of about 02h 39m by car.
- The straight-line flight distance is about 145.7 miles (234.5 km).
- For a round trip, plan for roughly 05h 19m 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 39m.
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.
City in Johnson County, Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Dayton and Saint Joseph.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Saint Joseph.
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1
Start on Dayton Road
18 m · 6 sec · Dayton Road
-
2
Turn right onto Walnut Street
1361 ft · 39 sec · Walnut Street
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3
Continue on SR 38
1.1 km · 1 min · SR 38
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4
Take the ramp right
2187 ft · 53 sec
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5
Merge slight left
39.1 mi · 42 min
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6
Keep slight left
17.1 mi · 22 min
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7
Continue on I 70 East: Dayton
1.9 mi · 3 min
-
8
Keep slight left
94.5 mi · 1 hr 43 min
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9
Take the exit slight right toward Memphis Road
1128 ft · 27 sec
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10
Turn left onto Memphis-Blue Lick Road
1.1 km · 1 min · Memphis-Blue Lick Road
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11
Turn right
2.9 mi · 4 min
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12
Turn right onto Perry Crossing Road
2.7 mi · 7 min · Perry Crossing Road
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13
At the end of the road, turn right onto State Road 60
925 ft · 26 sec · State Road 60
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14
Turn left onto State Road 111
1.8 mi · 3 min · State Road 111
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15
Arrive at your destination
0 m · 1 sec · Grant Line Road
Car Route Details
A richer read on the saved driving route between Dayton and Saint Joseph.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 East
Keep slight left
94.5 mi · 01h 43m
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.
Clear leaving Dayton and Sunny near Saint Joseph.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Saint Joseph?
The road trip is about 163.1 miles (262.5 km) and usually takes 02h 39m 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?
Franklin is a useful midpoint, sitting about 81.2 miles from Dayton and 81.8 miles from Saint Joseph.
How much longer is the road route than the straight-line distance?
The direct path is about 145.7 miles (234.5 km), while the road route adds roughly 17.4 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 1:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.68 one way or $43.37 round trip. Estimated CO2 is about 51.1 kg one way.
What should you check before leaving?
Before you leave, expect Clear around Dayton and Sunny near Saint Joseph.
Flight Path Map
This map shows the direct air route between Dayton and Saint Joseph. Straight-line distance: 145.72 mi (234.52 km).
#1 Dayton
Town in Indiana, USA
| Population | 1,667 |
| Coordinates | 40.3742000, -86.7689000 |
| Altitude | 206 |
| Country | United States |
#2 Saint Joseph
The most populous city in St.
| Population | 76,995 |
| Coordinates | 38.4000700, -85.8083000 |
| Altitude | 172 |
| Country | United States |
End: Grant Line Road (-85.80834, 38.400074)
Estimated Travel Time
Distance: 262 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 26m |
| 40 mph (64.37 km/h) | 04h 04m |
| 50 mph (80.47 km/h) | 03h 15m |
| 60 mph (96.56 km/h) | 02h 43m |
| 70 mph (112.65 km/h) | 02h 19m |
| 80 mph (129 km/h) | 02h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.68 | $43.37 |
| Mid-grade | $4.25 | $24.45 | $48.91 |
| Premium | $4.65 | $26.76 | $53.52 |
| Diesel | $5.30 | $30.50 | $61.00 |
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 · May 07, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.