How far is Mercer Island, WA from Seattle, WA?
The driving distance from Mercer Island, WA to Seattle, WA is about 7 miles (11.2 km), with a travel time of about 00h 11m by car.
- The straight-line flight distance is about 5.7 miles (9.1 km).
- For a round trip, plan for roughly 00h 22m 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 11m.
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.
City in Washington state
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Mercer Island and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mercer Island and Seattle.
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1
Start on Southeast 42nd Street
539 ft · 28 sec · Southeast 42nd Street
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2
At the end of the road, turn right onto 86th Avenue Southeast
1325 ft · 52 sec · 86th Avenue Southeast
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3
Turn left onto Southeast 40th Street
661 ft · 22 sec · Southeast 40th Street
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4
Turn right onto Island Crest Way
1.4 km · 2 min · Island Crest Way
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5
Turn left onto Southeast 27th Street
1682 ft · 40 sec · Southeast 27th Street
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6
Continue on 76th Avenue Southeast
1395 ft · 33 sec · 76th Avenue Southeast
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7
Take the ramp left toward I 90 West: Seattle
938 ft · 21 sec
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8
Merge slight left
3.6 mi · 5 min
-
9
Take the exit slight right toward I 5 North: Vancouver British Columbia, James Street, Madison Street
1.2 km · 1 min
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10
Keep slight left to continue on I 5 North: Vancouver British Columbia, Madison Street, Convention Center
881 ft · 22 sec
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11
Keep slight right to continue on Madison Street, Convention Place
1843 ft · 55 sec
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12
Turn left onto Madison Street
760 ft · 35 sec · Madison Street
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13
Turn left
9 m · 2 sec
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Mercer Island 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.
I 90 West
Merge slight left
3.62 mi · 00h 05m
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.
Mostly Cloudy leaving Mercer Island and Mostly Cloudy near Seattle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mercer Island to Seattle?
The road trip is about 7 miles (11.2 km) and usually takes 00h 11m 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?
Medina is a useful midpoint, sitting about 3.5 miles from Mercer Island and 3.4 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 5.7 miles (9.1 km), while the road route adds roughly 1.3 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 8:08 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.31 one way or $2.62 round trip. Estimated CO2 is about 2.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Mercer Island and Mostly Cloudy near Seattle.
Stop Ideas Near Medina
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 Medina.
King Street Station
Seattle (Ferry - Pier 69), Washington
Tukwila station
Edmonds station
Flight Path Map
This map shows the direct air route between Mercer Island and Seattle. Straight-line distance: 5.69 mi (9.15 km).
#1 Mercer Island
Island in the United States of America
| Population | 25,912 |
| Coordinates | 47.5706500, -122.2220700 |
| Altitude | 102 |
| 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: 11 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 13m |
| 40 mph (64.37 km/h) | 00h 10m |
| 50 mph (80.47 km/h) | 00h 08m |
| 60 mph (96.56 km/h) | 00h 06m |
| 70 mph (112.65 km/h) | 00h 05m |
| 80 mph (129 km/h) | 00h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $1.31 | $2.62 |
| Mid-grade | $5.57 | $1.39 | $2.78 |
| Premium | $5.77 | $1.44 | $2.89 |
| Diesel | $5.47 | $1.37 | $2.73 |
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 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.