How far is Sammamish, WA from Seattle, WA?
The driving distance from Sammamish, WA to Seattle, WA is about 17.9 miles (28.8 km), with a travel time of about 00h 23m by car.
- The straight-line flight distance is about 12 miles (19.3 km).
- For a round trip, plan for roughly 00h 46m 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 23m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Sammamish and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sammamish and Seattle.
-
1
Start on East Lake Sammamish Parkway Northeast
1.9 mi · 4 min · East Lake Sammamish Parkway Northeast
-
2
Turn slight left onto Redmond Way
1531 ft · 34 sec · Redmond Way
-
3
Take the ramp straight toward WA 520 West: Seattle
1.1 km · 1 min
-
4
Merge slight left
1.6 mi · 2 min
-
5
Take the exit slight right toward Northeast 40th Street
2259 ft · 32 sec
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6
Keep slight left to continue on WA 520 West: Seattle
1 km · 49 sec
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7
Merge slight left
9.5 mi · 12 min
-
8
Keep slight left to continue on I 5 South: Portland
2408 ft · 57 sec
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9
Merge slight right
1.8 mi · 2 min
-
10
Take the exit slight right toward Union Street
897 ft · 25 sec
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11
Continue on Union Street
889 ft · 42 sec · Union Street
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12
Turn left onto 5th Avenue
1343 ft · 56 sec · 5th Avenue
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13
Turn right onto Madison Street
34 m · 9 sec · Madison Street
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14
Turn left
9 m · 2 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Sammamish and Seattle.
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.
WA 520 West
Merge slight left
9.47 mi · 00h 12m
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.
Light Rain Likely leaving Sammamish and Light Rain Likely near Seattle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sammamish to Seattle?
The road trip is about 17.9 miles (28.8 km) and usually takes 00h 23m 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?
Yarrow Point is a useful midpoint, sitting about 8.9 miles from Sammamish and 8.9 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 12 miles (19.3 km), while the road route adds roughly 5.9 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:44 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.30 one way or $6.59 round trip. Estimated CO2 is about 5.6 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Sammamish and Light Rain Likely near Seattle.
Stop Ideas Near Yarrow Point
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 Yarrow Point.
King Street Station
Seattle (Ferry - Pier 69), Washington
Tukwila station
Edmonds station
Flight Path Map
This map shows the direct air route between Sammamish and Seattle. Straight-line distance: 11.97 mi (19.27 km).
#1 Sammamish
Town
| Population | 65,960 |
| Coordinates | 47.6417700, -122.0804000 |
| Altitude | 18 |
| Country | United States |
#2 Seattle
The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
| Population | 769,714 |
| Coordinates | 47.6062100, -122.3320700 |
| Altitude | 56 |
| Country | United States |
End: (-122.332143, 47.606309)
Estimated Travel Time
Distance: 29 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 35m |
| 40 mph (64.37 km/h) | 00h 26m |
| 50 mph (80.47 km/h) | 00h 21m |
| 60 mph (96.56 km/h) | 00h 17m |
| 70 mph (112.65 km/h) | 00h 15m |
| 80 mph (129 km/h) | 00h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $3.30 | $6.59 |
| Mid-grade | $5.57 | $3.51 | $7.01 |
| Premium | $5.77 | $3.64 | $7.27 |
| Diesel | $5.47 | $3.44 | $6.89 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.