How far is Vancouver, WA from West Lake Sammamish, WA?
The driving distance from Vancouver, WA to West Lake Sammamish, WA is about 168.5 miles (271.1 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 136.6 miles (219.8 km).
- For a round trip, plan for roughly 06h 37m 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 18m.
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 Thurston County, Washington, United States
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 Vancouver and West Lake Sammamish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Vancouver and West Lake Sammamish.
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1
Start on East Fourth Plain Boulevard
31 m · 10 sec · East Fourth Plain Boulevard
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2
Take the ramp left toward I 5 North: Seattle
873 ft · 23 sec
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3
Merge slight left
131.7 mi · 2 hr 30 min
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4
Keep slight right
20.7 mi · 26 min
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5
Take the exit slight right toward WA 518 West, I 405 North: Seattle-Tacoma International Airport, Bellevue
136 m · 11 sec
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6
Keep slight right to continue on I 405 North: Renton, Bellevue
2062 ft · 50 sec
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7
Merge slight left
10.3 mi · 13 min
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8
Take the exit slight right toward I 90: Seattle, Spokane
1281 ft · 31 sec
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9
Keep slight right to continue on I 90 East: Spokane
1867 ft · 46 sec
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10
Merge slight left
3.1 mi · 4 min
-
11
Take the exit slight right toward West Lake Sammamish Parkway, Lakemont Boulevard Southeast
984 ft · 24 sec
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12
Keep slight left to continue on West Lake Sammamish Parkway Southeast
3181 ft · 1 min
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13
Turn straight onto West Lake Sammamish Parkway Southeast
760 ft · 22 sec · West Lake Sammamish Parkway Southeast
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14
Continue on West Lake Sammamish Parkway Southeast
35 m · 3 sec · West Lake Sammamish Parkway Southeast
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15
Continue on West Lake Sammamish Parkway Southeast
76 m · 8 sec · West Lake Sammamish Parkway Southeast
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16
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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17
Exit the roundabout onto West Lake Sammamish Parkway Southeast
1797 ft · 55 sec · West Lake Sammamish Parkway Southeast
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18
Turn right onto 177th Avenue Southeast
107 m · 18 sec · 177th Avenue Southeast
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19
Turn right onto Southeast 40th Place
72 m · 10 sec · Southeast 40th Place
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20
Arrive at your destination
0 m · 1 sec · Southeast 40th Place
Car Route Details
A richer read on the saved driving route between Vancouver and West Lake Sammamish.
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 North
Merge slight left
132 mi · 02h 30m
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 Vancouver 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 Vancouver to West Lake Sammamish?
The road trip is about 168.5 miles (271.1 km) and usually takes 03h 18m 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?
Grand Mound is a useful midpoint, sitting about 84.2 miles from Vancouver and 84.3 miles from West Lake Sammamish.
How much longer is the road route than the straight-line distance?
The direct path is about 136.6 miles (219.8 km), while the road route adds roughly 31.9 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 10:22 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.08 one way or $62.17 round trip. Estimated CO2 is about 52.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Vancouver and Mostly Sunny near West Lake Sammamish.
Stop Ideas Near Grand Mound
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 Grand Mound.
Centralia station
Centennial Station
Tacoma Dome Station
Kelso Multimodal Transportation Center
Flight Path Map
This map shows the direct air route between Vancouver and West Lake Sammamish. Straight-line distance: 136.58 mi (219.8 km).
#1 Vancouver
The third most populous city in Washington.
| Population | 186,192 |
| Coordinates | 45.6387300, -122.6614900 |
| Altitude | 52 |
| 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: 271 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 36m |
| 40 mph (64.37 km/h) | 04h 12m |
| 50 mph (80.47 km/h) | 03h 22m |
| 60 mph (96.56 km/h) | 02h 48m |
| 70 mph (112.65 km/h) | 02h 24m |
| 80 mph (129 km/h) | 02h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $31.08 | $62.17 |
| Mid-grade | $5.57 | $33.07 | $66.14 |
| Premium | $5.77 | $34.28 | $68.56 |
| Diesel | $5.47 | $32.47 | $64.95 |
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.