How far is Saint John, IN from Dyer, IN?
The driving distance from Saint John, IN to Dyer, IN is about 256.4 miles (412.7 km), with a travel time of about 05h 36m by car.
- The straight-line flight distance is about 236 miles (379.8 km).
- For a round trip, plan for roughly 11h 12m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 05h 36m.
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.
Unincorporated town in Vermillion County, Indiana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Saint John and Dyer.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint John and Dyer.
-
1
Start on St John Road
1.1 mi · 4 min · St John Road
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2
At the end of the road, turn left onto New Harmony Road
1.4 mi · 3 min · New Harmony Road
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3
Continue on East Boonville New Harmony Road
750 ft · 21 sec · East Boonville New Harmony Road
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4
Take the ramp right
1524 ft · 37 sec
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5
Merge slight left
5.4 mi · 6 min
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6
Take the exit slight right toward I 64 West: Saint Louis
1371 ft · 47 sec
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7
Merge slight left
4.1 mi · 4 min
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8
Take the exit slight right toward US 41 North: Terre Haute
2541 ft · 1 min
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9
Merge slight left
39 mi · 46 min
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10
Take the exit slight right toward US 41 North, US 150: Terre Haute
57.7 mi · 1 hr 18 min
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11
Turn straight onto Chicago
63.3 mi · 1 hr 21 min
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12
Continue straight
80.6 mi · 1 hr 46 min
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13
Turn left onto West Lincoln Highway
746 ft · 24 sec · West Lincoln Highway
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14
Continue on Joliet Street
2.5 mi · 5 min · Joliet Street
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15
Turn right onto Hart Street
10 m · 1 sec · Hart Street
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16
Arrive at your destination
0 m · 1 sec · Hart Street
Car Route Details
A richer read on the saved driving route between Saint John and Dyer.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Chicago
Continue straight
80.6 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.
Slight Chance Showers And Thunderstorms leaving Saint John and Showers And Thunderstorms near Dyer.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint John to Dyer?
The road trip is about 256.4 miles (412.7 km) and usually takes 05h 36m 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?
Highland is a useful midpoint, sitting about 128.3 miles from Saint John and 128.1 miles from Dyer.
How much longer is the road route than the straight-line distance?
The direct path is about 236 miles (379.8 km), while the road route adds roughly 20.4 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 5:48 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.95 one way or $69.90 round trip. Estimated CO2 is about 80.4 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around Saint John and Showers And Thunderstorms near Dyer.
Stop Ideas Near Highland
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 Highland.
Danville, Illinois
Crawfordsville
Crawfordsville (Bus), Indiana
Illinois Terminal
Flight Path Map
This map shows the direct air route between Saint John and Dyer. Straight-line distance: 235.98 mi (379.78 km).
#1 Saint John
Town in Indiana, United States
| Population | 19,616 |
| Coordinates | 38.0792100, -87.4500100 |
| Altitude | 131 |
| Country | United States |
#2 Dyer
Town in Indiana
| Population | 15,955 |
| Coordinates | 41.4942000, -87.5217100 |
| Altitude | 195 |
| Country | United States |
End: Dyer (-87.52171, 41.4942)
Estimated Travel Time
Distance: 413 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 32m |
| 40 mph (64.37 km/h) | 06h 24m |
| 50 mph (80.47 km/h) | 05h 07m |
| 60 mph (96.56 km/h) | 04h 16m |
| 70 mph (112.65 km/h) | 03h 39m |
| 80 mph (129 km/h) | 03h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $34.95 | $69.90 |
| Mid-grade | $4.46 | $40.32 | $80.64 |
| Premium | $4.99 | $45.14 | $90.28 |
| Diesel | $6.62 | $59.92 | $119.84 |
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 · Oct 15, 2026