How far is Terrebonne, OR from Ontario, OR?
The driving distance from Terrebonne, OR to Ontario, OR is about 267.4 miles (430.4 km), with a travel time of about 06h 27m by car.
- The straight-line flight distance is about 210 miles (338 km).
- For a round trip, plan for roughly 12h 55m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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 06h 27m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Driving Route Map
The map below follows the saved road route between Terrebonne and Ontario.
Turn-by-Turn Driving Directions
Step-by-step road directions between Terrebonne and Ontario.
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1
Start on 11th Street
581 ft · 21 sec · 11th Street
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2
Turn left onto B Avenue
68 m · 6 sec · B Avenue
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3
Continue on Northwest Smith Rock Way
2531 ft · 1 min · Northwest Smith Rock Way
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4
Continue on Northeast Smith Rock Way
3.2 mi · 5 min · Northeast Smith Rock Way
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5
Continue on Northwest Smith Rock Way
1 mi · 2 min · Northwest Smith Rock Way
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6
At the end of the road, turn right onto Lone Pine Road
1.3 mi · 2 min · Lone Pine Road
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7
Turn left onto O'Neil Highway
12.7 mi · 18 min · O'Neil Highway
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8
At the end of the road, turn left onto Ochoco Highway
99 m · 4 sec · Ochoco Highway
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9
Continue on Northwest 3rd Street
1.2 km · 1 min · Northwest 3rd Street
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10
Continue on Northeast 3rd Street
2.5 mi · 4 min · Northeast 3rd Street
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11
Continue on Northeast Ochoco Highway
7.1 mi · 10 min · Northeast Ochoco Highway
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12
Continue on East Ochoco Highway
68.8 mi · 1 hr 37 min · East Ochoco Highway
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13
Continue on John Day Highway
6.3 mi · 9 min · John Day Highway
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14
Continue on West Franklin Street
1.1 mi · 2 min · West Franklin Street
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15
Continue on John Day Highway
22.2 mi · 32 min · John Day Highway
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16
Continue on West Main Street
2322 ft · 39 sec · West 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 West Main Street
3.6 mi · 5 min · West Main Street
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19
Continue on John Day Highway
10.7 mi · 16 min · John Day Highway
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20
Continue on Front Street
1.1 km · 1 min · Front Street
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21
Continue on John Day Highway
35.5 mi · 53 min · John Day Highway
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22
Continue on South 1st Avenue
2950 ft · 50 sec · South 1st Avenue
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23
Continue on Main Street
64 mi · 1 hr 35 min · Main Street
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24
Continue on 12th Street North
1.1 mi · 2 min · 12th Street North
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25
Continue on Glenn Street North
835 ft · 20 sec · Glenn Street North
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26
Turn left onto A Street East
2066 ft · 27 sec · A Street East
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27
Merge slight left onto Central Oregon Highway
11.4 mi · 13 min · Central Oregon Highway
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28
Enter the roundabout and take exit 3 toward Olds Ferry–Ontario Highway
100 m · 4 sec · Olds Ferry–Ontario Highway
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29
Exit the roundabout onto Olds Ferry–Ontario Highway
2.4 mi · 3 min · Olds Ferry–Ontario Highway
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30
Turn right onto Southwest 4th Avenue
1.9 mi · 3 min · Southwest 4th Avenue
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31
Turn left onto Southwest 2nd Street
1321 ft · 26 sec · Southwest 2nd Street
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32
Turn right onto West Idaho Avenue
675 ft · 13 sec · West Idaho Avenue
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33
Turn right onto South Oregon Street
8 m · 1 sec · South Oregon Street
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34
Arrive at your destination
0 m · 1 sec · South Oregon Street
Car Route Details
A richer read on the saved driving route between Terrebonne 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.
East Ochoco Highway
Continue on East Ochoco Highway
68.8 mi · 01h 37m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Terrebonne and Sunny near Ontario.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Terrebonne to Ontario?
The road trip is about 267.4 miles (430.4 km) and usually takes 06h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
John Day is a useful midpoint, sitting about 132.9 miles from Terrebonne and 134.5 miles from Ontario.
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 57.4 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 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.97 one way or $93.95 round trip. Estimated CO2 is about 83.9 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Terrebonne and Ontario, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Terrebonne and Sunny near Ontario.
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 Terrebonne and Ontario. Straight-line distance: 210 mi (337.97 km).
#1 Terrebonne
Census-designated place in Deschutes County, Oregon
| Population | 117,664 |
| Coordinates | 44.3529000, -121.1778100 |
| Altitude | 875 |
| Country | United States |
#2 Ontario
City in Oregon, USA
| Population | 11,140 |
| Coordinates | 44.0265500, -116.9629400 |
| Altitude | 656 |
| Country | United States |
End: Ontario (-116.96294, 44.02655)
Estimated Travel Time
Distance: 430 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 54m |
| 40 mph (64.37 km/h) | 06h 41m |
| 50 mph (80.47 km/h) | 05h 20m |
| 60 mph (96.56 km/h) | 04h 27m |
| 70 mph (112.65 km/h) | 03h 49m |
| 80 mph (129 km/h) | 03h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.98 | $46.97 | $93.95 |
| Mid-grade | $5.24 | $49.44 | $98.87 |
| Premium | $5.55 | $52.36 | $104.73 |
| Diesel | $6.74 | $63.66 | $127.33 |
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