How far is Ontario, OH from Hamilton, OH?
The driving distance from Ontario, OH to Hamilton, OH is about 166.3 miles (267.7 km), with a travel time of about 02h 47m by car.
- The straight-line flight distance is about 140.3 miles (225.8 km).
- For a round trip, plan for roughly 05h 35m 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 47m.
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 Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Ontario and Hamilton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ontario and Hamilton.
-
1
Start on South Lexington-Springmill Road
5.1 mi · 9 min · South Lexington-Springmill Road
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2
Continue on Plymouth Street
1.1 km · 2 min · Plymouth Street
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3
Turn left onto East Main Street
1012 ft · 26 sec · East Main Street
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4
Turn right onto Castor Road
1 km · 2 min · Castor Road
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5
Turn right onto State Route 97
2.1 mi · 3 min · State Route 97
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6
Take the ramp right toward I 71 South: Columbus
2002 ft · 49 sec
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7
Merge slight left
57.8 mi · 1 hr 4 min
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8
Keep slight right
81.7 mi · 1 hr 29 min
-
9
Take the exit slight right toward SR 741 North: Kings Mills Road, Mason
1504 ft · 41 sec
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10
Turn right onto Kings Mills Road
2 mi · 4 min · Kings Mills Road
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11
Turn sharp left
922 ft · 16 sec
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12
Continue straight
1.5 mi · 2 min
-
13
Turn right onto West Main Street
1390 ft · 29 sec · West Main Street
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14
Turn right onto Mason Road
2220 ft · 44 sec · Mason Road
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15
Enter the roundabout and take exit 3 toward Mason Road
54 m · 4 sec · Mason Road
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16
Exit the roundabout onto Mason Road
1.1 km · 1 min · Mason Road
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17
Enter the roundabout and take exit 1 toward Mason Road
25 m · 2 sec · Mason Road
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18
Exit the roundabout onto Mason Road
1.3 km · 1 min · Mason Road
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19
Continue on Liberty Way
1.3 km · 2 min · Liberty Way
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20
Turn right onto Cox Lane
1581 ft · 32 sec · Cox Lane
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21
Enter the roundabout and take exit 3 toward Veterans Boulevard
92 m · 6 sec · Veterans Boulevard
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22
Exit the roundabout onto Veterans Boulevard
1274 ft · 23 sec · Veterans Boulevard
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23
Continue on Butler County Veterans Highway
9.3 mi · 11 min · Butler County Veterans Highway
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24
Continue on High Street
1.7 mi · 3 min · High Street
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25
Continue on High Street
69 m · 15 sec · High Street
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26
Arrive at your destination
0 m · 1 sec · High Street
Car Route Details
A richer read on the saved driving route between Ontario and Hamilton.
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 71 South
Keep slight right
81.7 mi · 01h 29m
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.
Chance Rain Showers leaving Ontario and Sunny near Hamilton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ontario to Hamilton?
The road trip is about 166.3 miles (267.7 km) and usually takes 02h 47m 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?
Harrisburg is a useful midpoint, sitting about 83.5 miles from Ontario and 82.9 miles from Hamilton.
How much longer is the road route than the straight-line distance?
The direct path is about 140.3 miles (225.8 km), while the road route adds roughly 26 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 12:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.75 one way or $43.50 round trip. Estimated CO2 is about 52.2 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Ontario and Sunny near Hamilton.
Stop Ideas Near Harrisburg
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
London City Hall
Grove City Administration Office
Madison Township Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Harrisburg.
Columbus, OH
Flight Path Map
This map shows the direct air route between Ontario and Hamilton. Straight-line distance: 140.31 mi (225.81 km).
#1 Ontario
City in Ohio, USA
| Population | 6,102 |
| Coordinates | 40.7595000, -82.5901700 |
| Altitude | 414 |
| Country | United States |
#2 Hamilton
The most populous city in Butler County, Ohio.
| Population | 62,148 |
| Coordinates | 39.3995000, -84.5613400 |
| Altitude | 181 |
| Country | United States |
End: High Street (-84.56131, 39.399555)
Estimated Travel Time
Distance: 268 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 32m |
| 40 mph (64.37 km/h) | 04h 09m |
| 50 mph (80.47 km/h) | 03h 19m |
| 60 mph (96.56 km/h) | 02h 46m |
| 70 mph (112.65 km/h) | 02h 22m |
| 80 mph (129 km/h) | 02h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $21.75 | $43.50 |
| Mid-grade | $4.24 | $24.90 | $49.80 |
| Premium | $4.79 | $28.12 | $56.23 |
| Diesel | $4.30 | $25.26 | $50.53 |
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 Ohio · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.