How far is Ontario, OR from Terrebonne, OR?
The driving distance from Ontario, OR to Terrebonne, OR is about 279.3 miles (449.5 km), with a travel time of about 05h 04m by car.
- The straight-line flight distance is about 210 miles (338 km).
- For a round trip, plan for roughly 10h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 04m.
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 Oregon, USA
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 Ontario and Terrebonne.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ontario and Terrebonne.
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1
Start on South Oregon Street
8 m · 6 sec · South Oregon Street
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2
Turn left onto West Idaho Avenue
675 ft · 19 sec · West Idaho Avenue
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3
Turn left onto Southwest 2nd Street
1321 ft · 24 sec · Southwest 2nd Street
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4
Turn right onto Southwest 4th Avenue
1.9 mi · 3 min · Southwest 4th Avenue
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5
Turn left onto Olds Ferry–Ontario Highway
2.4 mi · 3 min · Olds Ferry–Ontario Highway
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6
Enter the roundabout and take exit 1 toward Central Oregon Highway
37 m · 2 sec · Central Oregon Highway
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7
Exit the roundabout onto Central Oregon Highway
11.4 mi · 13 min · Central Oregon Highway
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8
Continue on Washington Street East
2037 ft · 28 sec · Washington Street East
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9
Turn right onto Glenn Street North
557 ft · 9 sec · Glenn Street North
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10
Continue on 12th Street North
1.1 mi · 2 min · 12th Street North
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11
Continue on John Day Highway
64 mi · 1 hr 35 min · John Day Highway
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12
Turn straight onto South 1st Avenue
2950 ft · 50 sec · South 1st Avenue
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13
Continue on John Day Highway
35.5 mi · 53 min · John Day Highway
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14
Continue on Front Street
1.1 km · 1 min · Front Street
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15
Continue on John Day Highway
10.7 mi · 16 min · John Day Highway
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16
Continue on East Main Street
3.6 mi · 5 min · East Main Street
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17
Continue on John Day Highway
6.3 mi · 9 min · John Day Highway
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18
Continue on East Main Street
2322 ft · 39 sec · East Main Street
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19
Continue on John Day Highway
22.2 mi · 32 min · John Day Highway
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20
Continue on Franklin Street
1.1 mi · 2 min · Franklin Street
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21
Continue on John Day Highway
6.3 mi · 9 min · John Day Highway
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22
Continue on Ochoco Highway
68.8 mi · 1 hr 37 min · Ochoco Highway
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23
Continue on Northeast Ochoco Highway
7.1 mi · 10 min · Northeast Ochoco Highway
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24
Continue on Northeast 3rd Street
2.5 mi · 4 min · Northeast 3rd Street
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25
Continue on Northwest 3rd Street
2599 ft · 44 sec · Northwest 3rd Street
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26
Continue on Madras-Prineville Highway
114 m · 5 sec · Madras-Prineville Highway
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27
Turn straight onto Ochoco Highway
916 ft · 12 sec · Ochoco Highway
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28
Merge slight left onto Ochoco Highway
137 m · 7 sec · Ochoco Highway
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29
Turn right onto O'Neil Highway
12.7 mi · 18 min · O'Neil Highway
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30
Turn right onto Lone Pine Road
1.3 mi · 2 min · Lone Pine Road
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31
Turn left onto Northwest Smith Rock Way
1 mi · 2 min · Northwest Smith Rock Way
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32
Continue on Northeast Smith Rock Way
3.2 mi · 5 min · Northeast Smith Rock Way
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33
Continue on Northwest Smith Rock Way
2755 ft · 1 min · Northwest Smith Rock Way
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34
Turn right onto 11th Street
581 ft · 16 sec · 11th Street
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35
Arrive at your destination
0 m · 1 sec · 11th Street
Car Route Details
A richer read on the saved driving route between Ontario and Terrebonne.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Ochoco Highway
Continue on Ochoco Highway
68.8 mi · 01h 37m
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 Ontario and Sunny near Terrebonne.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ontario to Terrebonne?
The road trip is about 279.3 miles (449.5 km) and usually takes 05h 04m 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?
John Day is a useful midpoint, sitting about 132.8 miles from Ontario and 146.5 miles from Terrebonne.
How much longer is the road route than the straight-line distance?
The direct path is about 210 miles (338 km), while the road route adds roughly 69.3 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 MDT. If you want a more comfortable same-day return, try to leave by 6:52 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $49.06 one way or $98.13 round trip. Estimated CO2 is about 87.6 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Ontario and Terrebonne, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Ontario and Sunny near Terrebonne.
Stop Ideas Near John Day
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 John Day.
Burns, Oregon
Baker City, Oregon
Flight Path Map
This map shows the direct air route between Ontario and Terrebonne. Straight-line distance: 210 mi (337.97 km).
#1 Ontario
City in Oregon, USA
| Population | 11,140 |
| Coordinates | 44.0265500, -116.9629400 |
| Altitude | 656 |
| Country | United States |
#2 Terrebonne
Census-designated place in Deschutes County, Oregon
| Population | 117,664 |
| Coordinates | 44.3529000, -121.1778100 |
| Altitude | 875 |
| Country | United States |
End: 11th Street (-121.177733, 44.3529)
Estimated Travel Time
Distance: 449 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 18m |
| 40 mph (64.37 km/h) | 06h 58m |
| 50 mph (80.47 km/h) | 05h 35m |
| 60 mph (96.56 km/h) | 04h 39m |
| 70 mph (112.65 km/h) | 03h 59m |
| 80 mph (129 km/h) | 03h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.98 | $49.06 | $98.13 |
| Mid-grade | $5.24 | $51.64 | $103.27 |
| Premium | $5.55 | $54.69 | $109.39 |
| Diesel | $6.74 | $66.50 | $132.99 |
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 Oregon · Oct 16, 2026