How far is Portland, OR from Siletz, OR?
The driving distance from Portland, OR to Siletz, OR is about 134.7 miles (216.7 km), with a travel time of about 03h 02m by car.
- The straight-line flight distance is about 82.1 miles (132.2 km).
- For a round trip, plan for roughly 06h 05m 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 03h 02m.
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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Portland and Siletz.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland and Siletz.
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1
Start on the route
34 m · 13 sec
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2
Turn left onto Northwest Couch Street
2074 ft · 2 min · Northwest Couch Street
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3
Turn left onto Northwest 13th Avenue
1593 ft · 1 min · Northwest 13th Avenue
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4
Turn right onto Southwest Taylor Street
9 m · 1 sec · Southwest Taylor Street
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5
Take the ramp slight left toward I 405 South
2393 ft · 44 sec
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6
Merge slight left onto Stadium Freeway
1.5 mi · 2 min · Stadium Freeway
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7
Merge slight right
71.1 mi · 1 hr 25 min
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8
Take the exit slight right toward OR 34: Lebanon, Corvallis
1736 ft · 53 sec
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9
Turn right onto Corvallis-Lebanon Highway
9.6 mi · 14 min · Corvallis-Lebanon Highway
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10
Turn left onto Newport-Corvallis Highway
3088 ft · 48 sec · Newport-Corvallis Highway
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11
Continue on Corvallis-Newport Highway
2848 ft · 47 sec · Corvallis-Newport Highway
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12
Continue on Southwest Philomath Boulevard
3.6 mi · 6 min · Southwest Philomath Boulevard
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13
Continue on Main Street
1.2 km · 1 min · Main Street
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14
Take the exit slight right toward College Street
1.2 km · 2 min · College Street
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15
Turn left onto North 13th Street
118 m · 17 sec · North 13th Street
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16
Turn right onto Main Street
1.2 km · 2 min · Main Street
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17
Continue on Corvallis-Newport Highway
838 ft · 18 sec · Corvallis-Newport Highway
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18
Continue on Corvallis Newport Highway
36.3 mi · 50 min · Corvallis Newport Highway
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19
Turn sharp right onto Siletz Highway
7.2 mi · 13 min · Siletz Highway
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20
Continue on South Gaither Street
1014 ft · 26 sec · South Gaither Street
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21
Turn left onto West Buford Avenue
540 ft · 24 sec · West Buford Avenue
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22
Arrive at your destination
0 m · 1 sec · West Buford Avenue
Car Route Details
A richer read on the saved driving route between Portland and Siletz.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Stadium Freeway
Merge slight right
71.1 mi · 01h 25m
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 Portland and Mostly Sunny near Siletz.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portland to Siletz?
The road trip is about 134.7 miles (216.7 km) and usually takes 03h 02m 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?
Millersburg is a useful midpoint, sitting about 67.2 miles from Portland and 67.4 miles from Siletz.
How much longer is the road route than the straight-line distance?
The direct path is about 82.1 miles (132.2 km), while the road route adds roughly 52.6 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 10:54 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.52 one way or $47.03 round trip. Estimated CO2 is about 42.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Portland and Mostly Sunny near Siletz.
Stop Ideas Near Millersburg
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 Millersburg.
Albany station
Corvallis, Oregon
Salem station
Woodburn, OR
Flight Path Map
This map shows the direct air route between Portland and Siletz. Straight-line distance: 82.13 mi (132.17 km).
#1 Portland
The twenty-sixth most populous city in the United States and the center of the Portland metropolitan area.
| Population | 656,751 |
| Coordinates | 45.5234500, -122.6762100 |
| Altitude | 12 |
| Country | United States |
#2 Siletz
City in Oregon, USA
| Population | 1,307 |
| Coordinates | 44.7217800, -123.9201100 |
| Altitude | 43 |
| Country | United States |
End: Siletz (-123.92011, 44.72178)
Estimated Travel Time
Distance: 217 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 29m |
| 40 mph (64.37 km/h) | 03h 21m |
| 50 mph (80.47 km/h) | 02h 41m |
| 60 mph (96.56 km/h) | 02h 14m |
| 70 mph (112.65 km/h) | 01h 55m |
| 80 mph (129 km/h) | 01h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $23.52 | $47.03 |
| Mid-grade | $5.34 | $25.36 | $50.71 |
| Premium | $5.57 | $26.44 | $52.88 |
| Diesel | $6.37 | $30.24 | $60.48 |
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 · Jun 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.