How far is West Lake Sammamish, WA from Vancouver, WA?
The driving distance from West Lake Sammamish, WA to Vancouver, WA is about 168.9 miles (271.8 km), with a travel time of about 02h 53m by car.
- The straight-line flight distance is about 136.6 miles (219.8 km).
- For a round trip, plan for roughly 05h 47m 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 02h 53m.
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 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 West Lake Sammamish and Vancouver.
Turn-by-Turn Driving Directions
Step-by-step road directions between West Lake Sammamish and Vancouver.
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1
Start on Southeast 40th Place
85 m · 14 sec · Southeast 40th Place
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2
Turn right
138 m · 36 sec
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3
Turn left onto West Lake Sammamish Parkway Southeast
1394 ft · 43 sec · West Lake Sammamish Parkway Southeast
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4
Enter the roundabout and take exit 1 toward West Lake Sammamish Parkway Southeast
28 m · 3 sec · West Lake Sammamish Parkway Southeast
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5
Exit the roundabout onto West Lake Sammamish Parkway Southeast
25 m · 2 sec · West Lake Sammamish Parkway Southeast
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6
Take the ramp slight right toward I 90 West
2081 ft · 53 sec
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7
Merge slight right
2.9 mi · 4 min
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8
Take the exit slight right toward I 405: Renton, Everett
1138 ft · 28 sec
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9
Keep slight left to continue on I 405 South: Renton
1 km · 1 min
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10
Merge slight left
10.7 mi · 13 min
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11
Take the exit slight right toward I 5 South: Portland
1446 ft · 49 sec
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12
Merge slight left
20.3 mi · 25 min
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13
Keep slight right
126.2 mi · 2 hr 23 min
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14
Keep slight left
6.2 mi · 8 min
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15
Take the exit slight right toward 4th Plain Boulevard
955 ft · 23 sec
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16
Keep slight left to continue on 4th Plain Boulevard East
74 m · 13 sec
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17
Turn left onto East Fourth Plain Boulevard
810 ft · 23 sec · East Fourth Plain Boulevard
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18
Arrive at your destination
0 m · 1 sec · East Fourth Plain Boulevard
Car Route Details
A richer read on the saved driving route between West Lake Sammamish and Vancouver.
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
Keep slight right
126 mi · 02h 23m
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.
Mostly Sunny leaving West Lake Sammamish and Sunny near Vancouver.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from West Lake Sammamish to Vancouver?
The road trip is about 168.9 miles (271.8 km) and usually takes 02h 53m 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?
Grand Mound is a useful midpoint, sitting about 84.3 miles from West Lake Sammamish and 84.6 miles from Vancouver.
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 32.3 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 12:42 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.19 one way or $62.38 round trip. Estimated CO2 is about 53 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around West Lake Sammamish and Sunny near Vancouver.
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 West Lake Sammamish and Vancouver. Straight-line distance: 136.58 mi (219.8 km).
#1 West Lake Sammamish
Census designated place
| Population | 33,929 |
| Coordinates | 47.5776000, -122.1012300 |
| Altitude | 9 |
| Country | United States |
#2 Vancouver
The third most populous city in Washington.
| Population | 186,192 |
| Coordinates | 45.6387300, -122.6614900 |
| Altitude | 52 |
| Country | United States |
End: East Fourth Plain Boulevard (-122.661479, 45.638677)
Estimated Travel Time
Distance: 272 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 37m |
| 40 mph (64.37 km/h) | 04h 13m |
| 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 | $31.19 | $62.38 |
| Mid-grade | $5.57 | $33.18 | $66.36 |
| Premium | $5.77 | $34.40 | $68.79 |
| Diesel | $5.47 | $32.58 | $65.17 |
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.