How far is Seaside, OR from Portland, OR?
The driving distance from Seaside, OR to Portland, OR is about 79.1 miles (127.3 km), with a travel time of about 01h 33m by car.
- The straight-line flight distance is about 68.3 miles (109.9 km).
- For a round trip, plan for roughly 03h 06m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 33m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Partly Sunny
Driving Route Map
The map below follows the saved road route between Seaside and Portland.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seaside and Portland.
-
1
Start on Broadway Street
157 m · 17 sec · Broadway Street
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2
Turn right onto South Roosevelt Drive
3.8 mi · 7 min · South Roosevelt Drive
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3
Take the exit slight right toward US 26 East: Portland
1067 ft · 16 sec
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4
Continue on Sunset Highway
35.1 mi · 44 min · Sunset Highway
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5
Continue on Northwest Sunset Highway
14 mi · 20 min · Northwest Sunset Highway
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6
Continue on Northwest Sunset Highway
20.2 mi · 28 min · Northwest Sunset Highway
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7
Continue on Sunset Highway
4.2 mi · 6 min · Sunset Highway
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8
Take the exit slight left toward I 405 North: Seattle
2349 ft · 40 sec
-
9
Merge slight left onto Stadium Freeway
1724 ft · 29 sec · Stadium Freeway
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10
Take the exit slight right toward Everett Street, Glisan Street
906 ft · 30 sec
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11
Turn right onto Northwest Everett Street
1723 ft · 1 min · Northwest Everett Street
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12
Turn right onto Northwest 8th Avenue
159 m · 28 sec · Northwest 8th Avenue
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13
Turn left onto Northwest Couch Street
615 ft · 32 sec · Northwest Couch Street
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14
Turn right
34 m · 8 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Seaside and Portland.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Sunset Highway
Continue on Sunset Highway
35.1 mi · 00h 44m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Partly Sunny leaving Seaside and Partly Sunny near Portland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seaside to Portland?
The road trip is about 79.1 miles (127.3 km) and usually takes 01h 33m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Vernonia is a useful midpoint, sitting about 39.5 miles from Seaside and 39.6 miles from Portland.
How much longer is the road route than the straight-line distance?
The direct path is about 68.3 miles (109.9 km), while the road route adds roughly 10.8 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 3:24 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.81 one way or $27.63 round trip. Estimated CO2 is about 24.8 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Seaside and Partly Sunny near Portland.
Stop Ideas Near Vernonia
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 Vernonia.
Manning, Oregon
Elsie, Oregon
Kelso Multimodal Transportation Center
Necanicum Junction, Oregon
Flight Path Map
This map shows the direct air route between Seaside and Portland. Straight-line distance: 68.29 mi (109.9 km).
#1 Seaside
City in Oregon, USA
| Population | 6,926 |
| Coordinates | 45.9931600, -123.9226400 |
| Altitude | 2 |
| Country | United States |
#2 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 |
End: (-122.676082, 45.523482)
Estimated Travel Time
Distance: 127 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 38m |
| 40 mph (64.37 km/h) | 01h 58m |
| 50 mph (80.47 km/h) | 01h 34m |
| 60 mph (96.56 km/h) | 01h 19m |
| 70 mph (112.65 km/h) | 01h 07m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $13.81 | $27.63 |
| Mid-grade | $5.34 | $14.89 | $29.79 |
| Premium | $5.57 | $15.53 | $31.06 |
| Diesel | $6.37 | $17.76 | $35.52 |
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 · May 06, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.