How far is Hillsboro, OR from Siletz, OR?
The driving distance from Hillsboro, OR to Siletz, OR is about 123.3 miles (198.4 km), with a travel time of about 03h 04m by car.
- The straight-line flight distance is about 71.6 miles (115.2 km).
- For a round trip, plan for roughly 06h 08m 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 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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Hillsboro and Siletz.
Turn-by-Turn Driving Directions
Step-by-step road directions between Hillsboro and Siletz.
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1
Start on North 1st Avenue
24 m · 7 sec · North 1st Avenue
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2
Turn right onto West Main Street
1.1 km · 2 min · West Main Street
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3
Continue on Southwest Main Street
145 m · 13 sec · Southwest Main Street
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4
Turn right onto Southwest Baseline Street
1938 ft · 44 sec · Southwest Baseline Street
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5
Continue on Southwest Tualatin Valley Highway
1.5 km · 2 min · Southwest Tualatin Valley Highway
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6
Continue on Baseline Street
1.1 km · 1 min · Baseline Street
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7
Continue on North Adair Street
1.6 mi · 4 min · North Adair Street
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8
Continue on Pacific Avenue
2160 ft · 55 sec · Pacific Avenue
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9
Turn left onto Tualatin Valley Highway
6.8 mi · 9 min · Tualatin Valley Highway
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10
Continue on Front Street
2059 ft · 58 sec · Front Street
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11
Continue on Tualatin Valley Highway
7.6 mi · 11 min · Tualatin Valley Highway
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12
Continue on North Maple Street
2671 ft · 2 min · North Maple Street
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13
Continue on Tualatin Valley Highway
2.7 mi · 4 min · Tualatin Valley Highway
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14
Continue on North Yamhill Street
2623 ft · 1 min · North Yamhill Street
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15
Turn right onto West Main Street
1728 ft · 35 sec · West Main Street
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16
Continue on Northwest Meadow Lake Road
1.4 km · 2 min · Northwest Meadow Lake Road
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17
Turn left onto Westside Road
4.6 mi · 7 min · Westside Road
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18
Continue on Northeast Baker Street
3146 ft · 1 min · Northeast Baker Street
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19
Merge slight left onto Northeast Pacific Highway West
61 m · 5 sec · Northeast Pacific Highway West
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20
Continue on Northeast Adams Street
1.2 mi · 2 min · Northeast Adams Street
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21
Continue on Southwest Baker Street
1.2 km · 2 min · Southwest Baker Street
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22
Turn left onto Southwest Baker Street
1510 ft · 41 sec · Southwest Baker Street
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23
Continue on Pacific Highway West
4.9 mi · 6 min · Pacific Highway West
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24
Continue on North Trade Street
1.2 km · 55 sec · North Trade Street
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25
Continue on Pacific Highway West
12.6 mi · 15 min · Pacific Highway West
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26
Continue on Main Street
1961 ft · 50 sec · Main Street
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27
Continue on South Pacific Highway West
2.2 mi · 3 min · South Pacific Highway West
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28
Enter the roundabout and take exit 2 toward South Pacific Highway West
30 m · 1 sec · South Pacific Highway West
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29
Exit the roundabout onto South Pacific Highway West
2.7 mi · 4 min · South Pacific Highway West
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30
Continue on Pacific Avenue North
1 mi · 2 min · Pacific Avenue North
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31
Continue on South Pacific Highway West
6.9 mi · 9 min · South Pacific Highway West
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32
Turn right onto Airlie Road
5.9 mi · 8 min · Airlie Road
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33
Turn left onto Maxfield Creek Road
7.4 mi · 13 min · Maxfield Creek Road
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34
At the end of the road, turn left onto Kings Valley Highway
7.1 mi · 12 min · Kings Valley Highway
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35
Turn right onto Priest Road
1.5 km · 2 min · Priest Road
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36
Turn right onto Corvallis Newport Highway
31.1 mi · 43 min · Corvallis Newport Highway
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37
Turn sharp right onto Siletz Highway
7.2 mi · 13 min · Siletz Highway
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38
Continue on South Gaither Street
1014 ft · 26 sec · South Gaither Street
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39
Turn left onto West Buford Avenue
540 ft · 24 sec · West Buford Avenue
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40
Arrive at your destination
0 m · 1 sec · West Buford Avenue
Car Route Details
A richer read on the saved driving route between Hillsboro 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.
Corvallis Newport Highway
Turn right onto Corvallis Newport Highway
31.1 mi · 00h 43m
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 Hillsboro 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 Hillsboro to Siletz?
The road trip is about 123.3 miles (198.4 km) and usually takes 03h 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?
Monmouth is a useful midpoint, sitting about 61.6 miles from Hillsboro and 61.6 miles from Siletz.
How much longer is the road route than the straight-line distance?
The direct path is about 71.6 miles (115.2 km), while the road route adds roughly 51.7 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 10:52 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.54 one way or $43.07 round trip. Estimated CO2 is about 38.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Hillsboro and Mostly Sunny near Siletz.
Stop Ideas Near Monmouth
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 Monmouth.
Salem station
Albany station
Corvallis, Oregon
Woodburn, OR
Flight Path Map
This map shows the direct air route between Hillsboro and Siletz. Straight-line distance: 71.56 mi (115.16 km).
#1 Hillsboro
The most populous city in Washington County, Oregon.
| Population | 110,985 |
| Coordinates | 45.5228900, -122.9898300 |
| Altitude | 59 |
| 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: 198 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 06m |
| 40 mph (64.37 km/h) | 03h 04m |
| 50 mph (80.47 km/h) | 02h 27m |
| 60 mph (96.56 km/h) | 02h 03m |
| 70 mph (112.65 km/h) | 01h 45m |
| 80 mph (129 km/h) | 01h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $21.54 | $43.07 |
| Mid-grade | $5.34 | $23.22 | $46.44 |
| Premium | $5.57 | $24.21 | $48.42 |
| Diesel | $6.37 | $27.69 | $55.38 |
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.