How far is Marysville, WA from West Lake Sammamish, WA?
The driving distance from Marysville, WA to West Lake Sammamish, WA is about 40.5 miles (65.1 km), with a travel time of about 00h 54m by car.
- The straight-line flight distance is about 32.9 miles (53 km).
- For a round trip, plan for roughly 01h 48m 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 54m.
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.
A city in King County, Washington.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Marysville and West Lake Sammamish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marysville and West Lake Sammamish.
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1
Start on State Avenue
2860 ft · 1 min · State Avenue
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2
Enter the roundabout and take exit 1 toward State Route 529
21 m · 1 sec · State Route 529
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3
Exit the roundabout onto State Route 529
31 m · 2 sec · State Route 529
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4
Take the ramp straight toward I 5
1551 ft · 38 sec
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5
Merge slight left
15.2 mi · 19 min
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6
Take the exit slight right toward I 405 South: Bellevue, Renton
1.5 km · 1 min
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7
Merge slight left
1.5 km · 1 min
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8
Keep slight right
17.1 mi · 21 min
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9
Take the exit slight right toward I 90: Spokane, Seattle
2527 ft · 1 min
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10
Keep slight left to continue on I 90 East: Spokane
2797 ft · 1 min
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11
Merge slight left
3.1 mi · 4 min
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12
Take the exit slight right toward West Lake Sammamish Parkway, Lakemont Boulevard Southeast
984 ft · 24 sec
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13
Keep slight left to continue on West Lake Sammamish Parkway Southeast
3181 ft · 1 min
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14
Turn straight onto West Lake Sammamish Parkway Southeast
760 ft · 22 sec · West Lake Sammamish Parkway Southeast
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15
Continue on West Lake Sammamish Parkway Southeast
35 m · 3 sec · West Lake Sammamish Parkway Southeast
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16
Continue on West Lake Sammamish Parkway Southeast
76 m · 8 sec · West Lake Sammamish Parkway Southeast
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17
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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18
Exit the roundabout onto West Lake Sammamish Parkway Southeast
1797 ft · 55 sec · West Lake Sammamish Parkway Southeast
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19
Turn right onto 177th Avenue Southeast
107 m · 18 sec · 177th Avenue Southeast
-
20
Turn right onto Southeast 40th Place
72 m · 10 sec · Southeast 40th Place
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21
Arrive at your destination
0 m · 1 sec · Southeast 40th Place
Car Route Details
A richer read on the saved driving route between Marysville 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 405 South
Keep slight right
17.1 mi · 00h 21m
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 Marysville 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 Marysville to West Lake Sammamish?
The road trip is about 40.5 miles (65.1 km) and usually takes 00h 54m 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?
Bothell is a useful midpoint, sitting about 20.2 miles from Marysville and 20.3 miles from West Lake Sammamish.
How much longer is the road route than the straight-line distance?
The direct path is about 32.9 miles (53 km), while the road route adds roughly 7.6 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 4:42 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.48 one way or $14.97 round trip. Estimated CO2 is about 12.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Marysville and Mostly Sunny near West Lake Sammamish.
Stop Ideas Near Bothell
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 Bothell.
Edmonds station
Seattle (Ferry - Pier 69), Washington
King Street Station
Monroe (Eastbound), WA
Flight Path Map
This map shows the direct air route between Marysville and West Lake Sammamish. Straight-line distance: 32.95 mi (53.03 km).
#1 Marysville
The most populous city in Snohomish County, Washington.
| Population | 71,392 |
| Coordinates | 48.0517600, -122.1770800 |
| Altitude | 6 |
| 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: 65 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 20m |
| 40 mph (64.37 km/h) | 01h 00m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $7.48 | $14.97 |
| Mid-grade | $5.57 | $7.96 | $15.92 |
| Premium | $5.77 | $8.25 | $16.51 |
| Diesel | $5.47 | $7.82 | $15.64 |
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.