How far is Gresham, OR from Siletz, OR?
The driving distance from Gresham, OR to Siletz, OR is about 146.1 miles (235.1 km), with a travel time of about 03h 21m by car.
- The straight-line flight distance is about 90.3 miles (145.3 km).
- For a round trip, plan for roughly 06h 43m 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 21m.
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 Marion County, Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain
Light Rain
Driving Route Map
The map below follows the saved road route between Gresham and Siletz.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gresham and Siletz.
-
1
Start on the route
36 m · 10 sec
-
2
At the end of the road, turn right onto West Powell Boulevard
2.7 mi · 6 min · West Powell Boulevard
-
3
Continue on Southeast Powell Boulevard
732 ft · 29 sec · Southeast Powell Boulevard
-
4
Turn left onto Southeast 174th Avenue
2520 ft · 1 min · Southeast 174th Avenue
-
5
Continue on Southeast Jenne Road
1.5 km · 2 min · Southeast Jenne Road
-
6
At the end of the road, turn right onto Southeast Foster Road
3.6 mi · 8 min · Southeast Foster Road
-
7
Take the ramp left toward I 205 South: Oregon City, Salem
1827 ft · 49 sec · Southeast 94th Avenue
-
8
Merge slight left
16.6 mi · 22 min
-
9
Keep slight left to continue on I 5 South: Salem
155 m · 7 sec
-
10
Continue on I 5 South: Salem
1.4 km · 1 min
-
11
Merge slight left
59.5 mi · 1 hr 10 min
-
12
Take the exit slight right toward OR 34: Lebanon, Corvallis
1736 ft · 53 sec
-
13
Turn right onto Corvallis-Lebanon Highway
9.6 mi · 14 min · Corvallis-Lebanon Highway
-
14
Turn left onto Newport-Corvallis Highway
3088 ft · 48 sec · Newport-Corvallis Highway
-
15
Continue on Corvallis-Newport Highway
2848 ft · 47 sec · Corvallis-Newport Highway
-
16
Continue on Southwest Philomath Boulevard
3.6 mi · 6 min · Southwest Philomath Boulevard
-
17
Continue on Main Street
1.2 km · 1 min · Main Street
-
18
Take the exit slight right toward College Street
1.2 km · 2 min · College Street
-
19
Turn left onto North 13th Street
118 m · 17 sec · North 13th Street
-
20
Turn right onto Main Street
1.2 km · 2 min · Main Street
-
21
Continue on Corvallis-Newport Highway
838 ft · 18 sec · Corvallis-Newport Highway
-
22
Continue on Corvallis Newport Highway
36.3 mi · 50 min · Corvallis Newport Highway
-
23
Turn sharp right onto Siletz Highway
7.2 mi · 13 min · Siletz Highway
-
24
Continue on South Gaither Street
1014 ft · 26 sec · South Gaither Street
-
25
Turn left onto West Buford Avenue
540 ft · 24 sec · West Buford Avenue
-
26
Arrive at your destination
0 m · 1 sec · West Buford Avenue
Car Route Details
A richer read on the saved driving route between Gresham 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.
I 5 South
Merge slight left
59.5 mi · 01h 10m
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.
Light Rain leaving Gresham and Light Rain near Siletz.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gresham to Siletz?
The road trip is about 146.1 miles (235.1 km) and usually takes 03h 21m 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?
Jefferson is a useful midpoint, sitting about 73 miles from Gresham and 73.1 miles from Siletz.
How much longer is the road route than the straight-line distance?
The direct path is about 90.3 miles (145.3 km), while the road route adds roughly 55.8 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 10:16 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.50 one way or $51.00 round trip. Estimated CO2 is about 45.8 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain around Gresham and Light Rain near Siletz.
Stop Ideas Near Jefferson
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 Jefferson.
Albany station
Salem station
Corvallis, Oregon
Woodburn, OR
Flight Path Map
This map shows the direct air route between Gresham and Siletz. Straight-line distance: 90.26 mi (145.26 km).
#1 Gresham
The second most populous city in Multnomah County, Oregon.
| Population | 110,031 |
| Coordinates | 45.4981800, -122.4314800 |
| Altitude | 97 |
| 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: 235 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 52m |
| 40 mph (64.37 km/h) | 03h 39m |
| 50 mph (80.47 km/h) | 02h 55m |
| 60 mph (96.56 km/h) | 02h 26m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $25.50 | $51.00 |
| Mid-grade | $5.34 | $27.49 | $54.98 |
| Premium | $5.57 | $28.66 | $57.33 |
| Diesel | $6.37 | $32.78 | $65.57 |
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.