How far is Union, OR from Terrebonne, OR?
The driving distance from Union, OR to Terrebonne, OR is about 251.1 miles (404.1 km), with a travel time of about 05h 08m by car.
- The straight-line flight distance is about 172.9 miles (278.2 km).
- For a round trip, plan for roughly 10h 17m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 08m.
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.
Chance Light Rain
Driving Route Map
The map below follows the saved road route between Union and Terrebonne.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Terrebonne.
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1
Start on East Beakman Street
21 m · 3 sec · East Beakman Street
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2
Turn right onto North Main Street
3079 ft · 52 sec · North Main Street
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3
Continue on La Grande-Baker Highway
10.3 mi · 15 min · La Grande-Baker Highway
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4
Take the ramp left
1135 ft · 28 sec
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5
Merge slight left onto Old Oregon Trail Highway
96.7 mi · 1 hr 45 min · Old Oregon Trail Highway
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6
Continue on Columbia River Highway
62.9 mi · 1 hr 7 min · Columbia River Highway
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7
Take the exit slight right toward US 97: Yakima, Bend
1274 ft · 37 sec
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8
Turn left onto Sherman Highway
55.5 mi · 1 hr 13 min · Sherman Highway
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9
Continue on E Street
2151 ft · 53 sec · E Street
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10
Turn straight onto Sherman Highway
12.3 mi · 17 min · Sherman Highway
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11
Continue on The Dalles-California Highway
24.6 mi · 29 min · The Dalles-California Highway
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12
Continue on Northeast 6th Street
1259 ft · 33 sec · Northeast 6th Street
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13
Turn left onto 4th Street
81 m · 12 sec · 4th Street
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14
Continue on Southwest 4th Street
1 mi · 3 min · Southwest 4th Street
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15
Continue on The Dalles-California Highway
19.6 mi · 28 min · The Dalles-California Highway
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16
Turn left onto Central Avenue
84 m · 14 sec · Central Avenue
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17
Turn right onto 11th Street
100 m · 9 sec · 11th Street
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18
Arrive at your destination
0 m · 1 sec · 11th Street
Car Route Details
A richer read on the saved driving route between Union 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.
Old Oregon Trail Highway
Merge slight left onto Old Oregon Trail Highway
96.7 mi · 01h 45m
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.
Rain leaving Union and Chance Light Rain near Terrebonne.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Terrebonne?
The road trip is about 251.1 miles (404.1 km) and usually takes 05h 08m 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?
Arlington is a useful midpoint, sitting about 142.1 miles from Union and 109 miles from Terrebonne.
How much longer is the road route than the straight-line distance?
The direct path is about 172.9 miles (278.2 km), while the road route adds roughly 78.2 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 PDT. If you want a more comfortable same-day return, try to leave by 6:42 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.87 one way or $87.73 round trip. Estimated CO2 is about 78.7 kg one way.
What should you check before leaving?
Before you leave, expect Rain around Union and Chance Light Rain near Terrebonne.
Stop Ideas Near Arlington
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 Arlington.
Wishram
The Dalles, Oregon
Bingen – White Salmon
Hood River, Oregon
Flight Path Map
This map shows the direct air route between Union and Terrebonne. Straight-line distance: 172.87 mi (278.2 km).
#1 Union
Township of Union County, New Jersey
| Population | 2,207 |
| Coordinates | 45.2084700, -117.8652100 |
| Altitude | 850 |
| 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: 404 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 21m |
| 40 mph (64.37 km/h) | 06h 16m |
| 50 mph (80.47 km/h) | 05h 01m |
| 60 mph (96.56 km/h) | 04h 11m |
| 70 mph (112.65 km/h) | 03h 35m |
| 80 mph (129 km/h) | 03h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $43.87 | $87.73 |
| Mid-grade | $5.34 | $47.29 | $94.59 |
| Premium | $5.57 | $49.31 | $98.63 |
| Diesel | $6.37 | $56.40 | $112.81 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.