How far is Tacoma, WA from West Lake Sammamish, WA?
The driving distance from Tacoma, WA to West Lake Sammamish, WA is about 38.2 miles (61.4 km), with a travel time of about 00h 52m by car.
- The straight-line flight distance is about 27.6 miles (44.4 km).
- For a round trip, plan for roughly 01h 44m 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 52m.
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 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 Tacoma and West Lake Sammamish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Tacoma and West Lake Sammamish.
-
1
Start on South 11th Street
686 ft · 29 sec · South 11th Street
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2
Turn right onto Market Street
759 ft · 31 sec · Market Street
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3
Turn left onto South 13th Street
920 ft · 36 sec · South 13th Street
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4
Turn right onto I 705 SB Ramp
65 m · 11 sec · I 705 SB Ramp
-
5
Take the ramp straight toward Port of Tacoma
869 ft · 21 sec
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6
Merge slight right
1.3 km · 1 min
-
7
Keep slight right to continue on I 5 North: Seattle
1819 ft · 44 sec
-
8
Keep slight left to continue on I 5 North: Seattle
1395 ft · 34 sec
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9
Merge slight left
20.1 mi · 25 min
-
10
Take the exit slight right toward WA 518 West, I 405 North: Seattle-Tacoma International Airport, Bellevue
136 m · 11 sec
-
11
Keep slight right to continue on I 405 North: Renton, Bellevue
2062 ft · 50 sec
-
12
Merge slight left
10.3 mi · 13 min
-
13
Take the exit slight right toward I 90: Seattle, Spokane
1281 ft · 31 sec
-
14
Keep slight right to continue on I 90 East: Spokane
1867 ft · 46 sec
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15
Merge slight left
3.1 mi · 4 min
-
16
Take the exit slight right toward West Lake Sammamish Parkway, Lakemont Boulevard Southeast
984 ft · 24 sec
-
17
Keep slight left to continue on West Lake Sammamish Parkway Southeast
3181 ft · 1 min
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18
Turn straight onto West Lake Sammamish Parkway Southeast
760 ft · 22 sec · West Lake Sammamish Parkway Southeast
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19
Continue on West Lake Sammamish Parkway Southeast
35 m · 3 sec · West Lake Sammamish Parkway Southeast
-
20
Continue on West Lake Sammamish Parkway Southeast
76 m · 8 sec · West Lake Sammamish Parkway Southeast
-
21
Enter the roundabout and take exit 2 toward West Lake Sammamish Parkway Southeast
32 m · 3 sec · West Lake Sammamish Parkway Southeast
-
22
Exit the roundabout onto West Lake Sammamish Parkway Southeast
1797 ft · 55 sec · West Lake Sammamish Parkway Southeast
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23
Turn right onto 177th Avenue Southeast
107 m · 18 sec · 177th Avenue Southeast
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24
Turn right onto Southeast 40th Place
72 m · 10 sec · Southeast 40th Place
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25
Arrive at your destination
0 m · 1 sec · Southeast 40th Place
Car Route Details
A richer read on the saved driving route between Tacoma 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
20.1 mi · 00h 25m
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.
Sunny leaving Tacoma 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 Tacoma to West Lake Sammamish?
The road trip is about 38.2 miles (61.4 km) and usually takes 00h 52m 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?
Des Moines is a useful midpoint, sitting about 19.1 miles from Tacoma and 19.1 miles from West Lake Sammamish.
How much longer is the road route than the straight-line distance?
The direct path is about 27.6 miles (44.4 km), while the road route adds roughly 10.6 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 4:46 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.01 one way or $14.02 round trip. Estimated CO2 is about 11.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Tacoma and Mostly Sunny near West Lake Sammamish.
Stop Ideas Near Des Moines
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 Des Moines.
Tukwila station
Tacoma Dome Station
King Street Station
Seattle (Ferry - Pier 69), Washington
Flight Path Map
This map shows the direct air route between Tacoma and West Lake Sammamish. Straight-line distance: 27.58 mi (44.39 km).
#1 Tacoma
The third most populous city in Washington.
| Population | 219,945 |
| Coordinates | 47.2528800, -122.4442900 |
| Altitude | 74 |
| 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: 61 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 16m |
| 40 mph (64.37 km/h) | 00h 57m |
| 50 mph (80.47 km/h) | 00h 45m |
| 60 mph (96.56 km/h) | 00h 38m |
| 70 mph (112.65 km/h) | 00h 32m |
| 80 mph (129 km/h) | 00h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $7.01 | $14.02 |
| Mid-grade | $5.57 | $7.46 | $14.92 |
| Premium | $5.77 | $7.73 | $15.47 |
| Diesel | $5.47 | $7.33 | $14.65 |
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.