How far is Alderton, WA from Seattle, WA?
The driving distance from Alderton, WA to Seattle, WA is about 36.1 miles (58.1 km), with a travel time of about 00h 47m by car.
- The straight-line flight distance is about 30.6 miles (49.2 km).
- For a round trip, plan for roughly 01h 35m 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 00h 47m.
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.
The fourth most populous city in King County, Washington.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Alderton and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alderton and Seattle.
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1
Start on State Route 162
1.1 mi · 2 min · State Route 162
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2
Continue on Orting Highway East
2841 ft · 1 min · Orting Highway East
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3
Take the ramp left toward WA 410 West: Tacoma
1496 ft · 23 sec
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4
Merge slight left
1.1 mi · 2 min
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5
Keep slight right to continue on WA 167 North: Seattle
1749 ft · 43 sec
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6
Merge slight left onto Valley Freeway
12.1 mi · 15 min · Valley Freeway
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7
Take the exit slight right toward WA 516: Des Moines, Willis Street
1449 ft · 43 sec
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8
Turn left onto West Willis Street
1085 ft · 35 sec · West Willis Street
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9
Continue on South Kent Des Moines Road
2.6 mi · 4 min · South Kent Des Moines Road
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10
Take the exit right
1146 ft · 18 sec
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11
Continue straight
1972 ft · 50 sec
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12
Merge slight left
15.8 mi · 20 min
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13
Take the exit slight left toward Seneca Street
1359 ft · 36 sec
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14
Turn left onto Seneca Street
98 m · 18 sec · Seneca Street
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15
Turn left onto 5th Avenue
615 ft · 27 sec · 5th Avenue
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16
Turn right onto Madison Street
34 m · 9 sec · Madison Street
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17
Turn left
9 m · 2 sec
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18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Alderton and Seattle.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
South Kent Des Moines Road
Merge slight left
15.8 mi · 00h 20m
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.
Showers And Thunderstorms leaving Alderton and Light Rain Likely near Seattle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alderton to Seattle?
The road trip is about 36.1 miles (58.1 km) and usually takes 00h 47m 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?
Kent is a useful midpoint, sitting about 17.6 miles from Alderton and 18.4 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 30.6 miles (49.2 km), while the road route adds roughly 5.5 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 4:54 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.65 one way or $13.29 round trip. Estimated CO2 is about 11.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Alderton and Light Rain Likely near Seattle.
Stop Ideas Near Kent
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall Tacoma
Tukwila Community Center
Auburn Building Permits
City of Covington
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Kent.
Tukwila station
Tacoma Dome Station
King Street Station
Seattle (Ferry - Pier 69), Washington
Flight Path Map
This map shows the direct air route between Alderton and Seattle. Straight-line distance: 30.55 mi (49.17 km).
#1 Alderton
Alderton is a place in Washington, United States.
| Population | 0 |
| Coordinates | 47.1695500, -122.2292800 |
| Altitude | 27 |
| Country | United States |
#2 Seattle
The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
| Population | 769,714 |
| Coordinates | 47.6062100, -122.3320700 |
| Altitude | 56 |
| Country | United States |
End: (-122.332143, 47.606309)
Estimated Travel Time
Distance: 58 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 12m |
| 40 mph (64.37 km/h) | 00h 54m |
| 50 mph (80.47 km/h) | 00h 43m |
| 60 mph (96.56 km/h) | 00h 36m |
| 70 mph (112.65 km/h) | 00h 30m |
| 80 mph (129 km/h) | 00h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $6.65 | $13.29 |
| Mid-grade | $5.57 | $7.07 | $14.14 |
| Premium | $5.77 | $7.33 | $14.66 |
| Diesel | $5.47 | $6.94 | $13.89 |
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 Washington · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.