How far is Hamilton, OH from Ontario, OH?
The driving distance from Hamilton, OH to Ontario, OH is about 174.7 miles (281.1 km), with a travel time of about 03h 26m by car.
- The straight-line flight distance is about 140.3 miles (225.8 km).
- For a round trip, plan for roughly 06h 53m 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 26m.
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.
Village in Ohio, United States
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 Hamilton and Ontario.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hamilton and Ontario.
-
1
Start on High Street
1.2 km · 1 min · High Street
-
2
Turn left onto North Erie Boulevard
1 km · 51 sec · North Erie Boulevard
-
3
Continue on Fairgrove Avenue
3235 ft · 42 sec · Fairgrove Avenue
-
4
Continue on Hamilton Middletown Road
6.4 mi · 7 min · Hamilton Middletown Road
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5
Take the exit straight toward SR 63: Monroe, Lebanon
1322 ft · 36 sec
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6
Continue on Hamilton Lebanon Road East
4.5 mi · 8 min · Hamilton Lebanon Road East
-
7
Turn straight
560 ft · 10 sec
-
8
Take the ramp slight left toward I 75 North: Dayton
2354 ft · 1 min
-
9
Merge slight left
13.3 mi · 15 min
-
10
Take the exit slight right toward I 675 North: Columbus
1.4 mi · 2 min
-
11
Continue straight
15.7 mi · 18 min
-
12
Keep slight left
9 mi · 10 min
-
13
Take the exit slight right toward I 70 East, SR 4 North: Columbus
1.2 km · 1 min
-
14
Merge slight left
1.9 mi · 2 min
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15
Keep slight left
49.2 mi · 53 min
-
16
Keep slight left to continue on I 670 East: Airport
4.3 mi · 5 min
-
17
Keep slight right to continue on North Innerbelt
1003 ft · 16 sec · North Innerbelt
-
18
Take the exit slight right toward I 71 North: Cleveland
2166 ft · 41 sec
-
19
Keep slight left to continue on I 71 North: Cleveland
1560 ft · 38 sec
-
20
Merge slight left
55.3 mi · 1 hr 1 min
-
21
Take the exit slight right toward SR 97: Lexington, Bellville
1945 ft · 53 sec
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22
Turn left onto State Route 97
2.2 mi · 3 min · State Route 97
-
23
Turn left onto Castor Road
1 km · 2 min · Castor Road
-
24
At the end of the road, turn left onto East Main Street
1012 ft · 29 sec · East Main Street
-
25
Turn right onto Plymouth Street
1.1 km · 2 min · Plymouth Street
-
26
Continue on South Lexington-Springmill Road
5.1 mi · 9 min · South Lexington-Springmill Road
-
27
Arrive at your destination
0 m · 1 sec · South Lexington-Springmill Road
Car Route Details
A richer read on the saved driving route between Hamilton and Ontario.
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 North
Merge slight left
55.3 mi · 01h 01m
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 Hamilton and Chance Rain Showers near Ontario.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Hamilton to Ontario?
The road trip is about 174.7 miles (281.1 km) and usually takes 03h 26m 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?
Lafayette is a useful midpoint, sitting about 87.2 miles from Hamilton and 87.4 miles from Ontario.
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 34.4 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 EDT. If you want a more comfortable same-day return, try to leave by 10:06 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.82 one way or $45.65 round trip. Estimated CO2 is about 54.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Hamilton and Chance Rain Showers near Ontario.
Stop Ideas Near Lafayette
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
London City Hall
Old Hilliard
SOUTH VIENNA MUNICIPAL BLDG
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lafayette.
Columbus, OH
Flight Path Map
This map shows the direct air route between Hamilton and Ontario. Straight-line distance: 140.31 mi (225.81 km).
#1 Hamilton
The most populous city in Butler County, Ohio.
| Population | 62,148 |
| Coordinates | 39.3995000, -84.5613400 |
| Altitude | 181 |
| Country | United States |
#2 Ontario
City in Ohio, USA
| Population | 6,102 |
| Coordinates | 40.7595000, -82.5901700 |
| Altitude | 414 |
| Country | United States |
End: Ontario (-82.59017, 40.7595)
Estimated Travel Time
Distance: 281 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 49m |
| 40 mph (64.37 km/h) | 04h 22m |
| 50 mph (80.47 km/h) | 03h 29m |
| 60 mph (96.56 km/h) | 02h 54m |
| 70 mph (112.65 km/h) | 02h 29m |
| 80 mph (129 km/h) | 02h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $22.82 | $45.65 |
| Mid-grade | $4.24 | $26.13 | $52.26 |
| Premium | $4.79 | $29.51 | $59.01 |
| Diesel | $4.30 | $26.51 | $53.03 |
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.