How far is Renton, WA from West Lake Sammamish, WA?
The driving distance from Renton, WA to West Lake Sammamish, WA is about 12.9 miles (20.8 km), with a travel time of about 00h 21m by car.
- The straight-line flight distance is about 8.5 miles (13.7 km).
- For a round trip, plan for roughly 00h 42m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 21m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in, and the county seat of, Pend Oreille County, Washington
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 Renton and West Lake Sammamish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Renton and West Lake Sammamish.
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1
Start on the route
19 m · 5 sec
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2
Turn left
22 m · 8 sec
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3
Turn left
30 m · 9 sec
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4
Turn right onto Rainier Avenue South
158 m · 13 sec · Rainier Avenue South
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5
Turn right onto Airport Way
2225 ft · 1 min · Airport Way
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6
Continue on Logan Avenue South
705 ft · 22 sec · Logan Avenue South
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7
Turn right onto North 3rd Street
1 km · 1 min · North 3rd Street
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8
Turn left onto Sunset Boulevard North
1012 ft · 36 sec · Sunset Boulevard North
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9
Keep slight right to continue on Sunset Boulevard North
814 ft · 23 sec · Sunset Boulevard North
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10
Take the ramp slight left toward I 405 North, WA 900 East
6.2 mi · 8 min
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11
Take the exit slight right toward I 90: Seattle, Spokane
1281 ft · 31 sec
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12
Keep slight right to continue on I 90 East: Spokane
1867 ft · 46 sec
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13
Merge slight left
3.1 mi · 4 min
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14
Take the exit slight right toward West Lake Sammamish Parkway, Lakemont Boulevard Southeast
984 ft · 24 sec
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15
Keep slight left to continue on West Lake Sammamish Parkway Southeast
3181 ft · 1 min
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16
Turn straight onto West Lake Sammamish Parkway Southeast
760 ft · 22 sec · West Lake Sammamish Parkway Southeast
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17
Continue on West Lake Sammamish Parkway Southeast
35 m · 3 sec · West Lake Sammamish Parkway Southeast
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18
Continue on West Lake Sammamish Parkway Southeast
76 m · 8 sec · West Lake Sammamish Parkway Southeast
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19
Enter the roundabout and take exit 2 toward West Lake Sammamish Parkway Southeast
32 m · 3 sec · West Lake Sammamish Parkway Southeast
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20
Exit the roundabout onto West Lake Sammamish Parkway Southeast
1797 ft · 55 sec · West Lake Sammamish Parkway Southeast
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21
Turn right onto 177th Avenue Southeast
107 m · 18 sec · 177th Avenue Southeast
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22
Turn right onto Southeast 40th Place
72 m · 10 sec · Southeast 40th Place
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23
Arrive at your destination
0 m · 1 sec · Southeast 40th Place
Car Route Details
A richer read on the saved driving route between Renton and West Lake Sammamish.
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.
I 405 North
Take the ramp slight left toward I 405 North, WA 900 East
6.15 mi · 00h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Renton and Mostly Sunny near West Lake Sammamish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Renton to West Lake Sammamish?
The road trip is about 12.9 miles (20.8 km) and usually takes 00h 21m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Newport is a useful midpoint, sitting about 6.5 miles from Renton and 6.5 miles from West Lake Sammamish.
How much longer is the road route than the straight-line distance?
The direct path is about 8.5 miles (13.7 km), while the road route adds roughly 4.4 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:48 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.41 one way or $4.81 round trip. Estimated CO2 is about 4.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Renton and Mostly Sunny near West Lake Sammamish.
Stop Ideas Near Newport
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Tukwila Community Center
Renton City Human Services
Renton City Hall
Renton Police Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Newport.
King Street Station
Tukwila station
Seattle (Ferry - Pier 69), Washington
Edmonds station
Flight Path Map
This map shows the direct air route between Renton and West Lake Sammamish. Straight-line distance: 8.49 mi (13.66 km).
#1 Renton
The second most populous city in King County, Washington.
| Population | 101,494 |
| Coordinates | 47.4828800, -122.2170700 |
| Altitude | 12 |
| Country | United States |
#2 West Lake Sammamish
Census designated place
| Population | 33,929 |
| Coordinates | 47.5776000, -122.1012300 |
| Altitude | 9 |
| Country | United States |
End: West Lake Sammamish (-122.10123, 47.5776)
Estimated Travel Time
Distance: 21 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 25m |
| 40 mph (64.37 km/h) | 00h 19m |
| 50 mph (80.47 km/h) | 00h 15m |
| 60 mph (96.56 km/h) | 00h 12m |
| 70 mph (112.65 km/h) | 00h 11m |
| 80 mph (129 km/h) | 00h 09m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $2.41 | $4.81 |
| Mid-grade | $5.57 | $2.56 | $5.12 |
| Premium | $5.77 | $2.65 | $5.31 |
| Diesel | $5.47 | $2.51 | $5.03 |
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 · Jun 01, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.