How far is Yakima, WA from Mercer Island, WA?
The driving distance from Yakima, WA to Mercer Island, WA is about 137 miles (220.5 km), with a travel time of about 02h 37m by car.
- The straight-line flight distance is about 104.9 miles (168.8 km).
- For a round trip, plan for roughly 05h 15m 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 37m.
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 Kittitas County, Washington, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Light Rain then Partly Sunny
Chance Light Rain
Driving Route Map
The map below follows the saved road route between Yakima and Mercer Island.
Turn-by-Turn Driving Directions
Step-by-step road directions between Yakima and Mercer Island.
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1
Start on South 1st Street
1.6 mi · 4 min · South 1st Street
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2
Continue on Selah Road
711 ft · 12 sec · Selah Road
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3
Take the ramp slight right
34 m · 3 sec
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4
Keep slight left
1297 ft · 32 sec
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5
Merge slight right
30.3 mi · 33 min
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6
Keep slight left to continue on I 90 West
103 mi · 1 hr 56 min
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7
Take the exit slight right toward East Mercer Way
1561 ft · 46 sec
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8
Turn left onto East Mercer Way
101 m · 11 sec · East Mercer Way
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9
Turn sharp right onto Southeast 36th Street
2214 ft · 1 min · Southeast 36th Street
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10
Continue on Gallagher Hill Road
1478 ft · 43 sec · Gallagher Hill Road
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11
Turn right onto Southeast 40th Street
1344 ft · 46 sec · Southeast 40th Street
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12
Turn left onto 86th Avenue Southeast
1325 ft · 53 sec · 86th Avenue Southeast
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13
Turn left onto Southeast 42nd Street
539 ft · 24 sec · Southeast 42nd Street
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14
Arrive at your destination
0 m · 1 sec · Southeast 42nd Street
Car Route Details
A richer read on the saved driving route between Yakima and Mercer Island.
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 90 West
Keep slight left to continue on I 90 West
103 mi · 01h 56m
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.
Slight Chance Light Rain then Partly Sunny leaving Yakima and Chance Light Rain near Mercer Island.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Yakima to Mercer Island?
The road trip is about 137 miles (220.5 km) and usually takes 02h 37m 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?
Roslyn is a useful midpoint, sitting about 68.4 miles from Yakima and 68.6 miles from Mercer Island.
How much longer is the road route than the straight-line distance?
The direct path is about 104.9 miles (168.8 km), while the road route adds roughly 32.1 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 1:14 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.28 one way or $50.55 round trip. Estimated CO2 is about 42.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Light Rain then Partly Sunny around Yakima and Chance Light Rain near Mercer Island.
Stop Ideas Near Roslyn
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 Roslyn.
Leavenworth, Washington
Leavenworth
Columbia Station
Stevens Pass, Washington
Flight Path Map
This map shows the direct air route between Yakima and Mercer Island. Straight-line distance: 104.86 mi (168.76 km).
#1 Yakima
The second most populous city in Yakima County, Washington.
| Population | 94,322 |
| Coordinates | 46.6020700, -120.5059000 |
| Altitude | 326 |
| Country | United States |
#2 Mercer Island
Island in the United States of America
| Population | 25,912 |
| Coordinates | 47.5706500, -122.2220700 |
| Altitude | 102 |
| Country | United States |
End: Mercer Island (-122.22207, 47.57065)
Estimated Travel Time
Distance: 221 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 33m |
| 40 mph (64.37 km/h) | 03h 25m |
| 50 mph (80.47 km/h) | 02h 44m |
| 60 mph (96.56 km/h) | 02h 17m |
| 70 mph (112.65 km/h) | 01h 57m |
| 80 mph (129 km/h) | 01h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $25.28 | $50.55 |
| Mid-grade | $5.57 | $26.89 | $53.78 |
| Premium | $5.77 | $27.87 | $55.75 |
| Diesel | $5.47 | $26.41 | $52.81 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.