How far is Saint Joseph, IN from Dayton, IN?
The driving distance from Saint Joseph, IN to Dayton, IN is about 162.2 miles (261 km), with a travel time of about 03h 09m by car.
- The straight-line flight distance is about 145.7 miles (234.5 km).
- For a round trip, plan for roughly 06h 19m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 09m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Driving Route Map
The map below follows the saved road route between Saint Joseph and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Joseph and Dayton.
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1
Start on Grant Line Road
71 m · 5 sec · Grant Line Road
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2
Continue on State Road 111
1.8 mi · 3 min · State Road 111
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3
Turn right onto State Road 60
925 ft · 24 sec · State Road 60
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4
Turn left onto Perry Crossing Road
2.7 mi · 7 min · Perry Crossing Road
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5
Turn left
2.9 mi · 4 min
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6
Turn left onto Memphis-Blue Lick Road
3044 ft · 1 min · Memphis-Blue Lick Road
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7
Take the ramp right
1364 ft · 33 sec
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8
Merge slight left
95.8 mi · 1 hr 46 min
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9
Keep slight right
29.8 mi · 36 min
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10
Take the exit slight right toward US 52 West
1281 ft · 16 sec
-
11
Keep slight left
786 ft · 10 sec
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12
Merge slight left
26.6 mi · 29 min
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13
Take the exit slight right toward SR 38: Lafayette, Dayton
2719 ft · 1 min
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14
Turn left onto SR 38
2298 ft · 1 min · SR 38
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15
Continue on Walnut Street
1361 ft · 44 sec · Walnut Street
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16
Turn left onto Dayton Road
18 m · 2 sec · Dayton Road
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17
Arrive at your destination
0 m · 1 sec · Dayton Road
Car Route Details
A richer read on the saved driving route between Saint Joseph and Dayton.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Memphis-Blue Lick Road
Merge slight left
95.8 mi · 01h 46m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Saint Joseph and Clear near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Joseph to Dayton?
The road trip is about 162.2 miles (261 km) and usually takes 03h 09m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Franklin is a useful midpoint, sitting about 81.2 miles from Saint Joseph and 81 miles from Dayton.
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 16.5 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:40 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.57 one way or $43.14 round trip. Estimated CO2 is about 50.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Saint Joseph and Clear near Dayton.
Flight Path Map
This map shows the direct air route between Saint Joseph and Dayton. Straight-line distance: 145.72 mi (234.52 km).
#1 Saint Joseph
The most populous city in St.
| Population | 76,995 |
| Coordinates | 38.4000700, -85.8083000 |
| Altitude | 172 |
| Country | United States |
#2 Dayton
Town in Indiana, USA
| Population | 1,667 |
| Coordinates | 40.3742000, -86.7689000 |
| Altitude | 206 |
| Country | United States |
End: Dayton (-86.7689, 40.3742)
Estimated Travel Time
Distance: 261 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 24m |
| 40 mph (64.37 km/h) | 04h 03m |
| 50 mph (80.47 km/h) | 03h 14m |
| 60 mph (96.56 km/h) | 02h 42m |
| 70 mph (112.65 km/h) | 02h 19m |
| 80 mph (129 km/h) | 02h 01m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $21.57 | $43.14 |
| Mid-grade | $4.25 | $24.33 | $48.65 |
| Premium | $4.65 | $26.62 | $53.24 |
| Diesel | $5.30 | $30.34 | $60.68 |
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.