How far is Lacey, WA from Kennewick, WA?
The driving distance from Lacey, WA to Kennewick, WA is about 251.6 miles (404.9 km), with a travel time of about 04h 15m by car.
- The straight-line flight distance is about 183.9 miles (296 km).
- For a round trip, plan for roughly 08h 31m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 15m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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
Rain Likely
Driving Route Map
The map below follows the saved road route between Lacey and Kennewick.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lacey and Kennewick.
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1
Start on College Street Southeast
1.6 km · 2 min · College Street Southeast
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2
Turn right onto Martin Way East
1564 ft · 34 sec · Martin Way East
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3
Take the ramp left toward I 5 North: Seattle, Tacoma
990 ft · 24 sec
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4
Merge slight left
24 mi · 30 min
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5
Keep slight right
8.2 mi · 10 min
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6
Take the exit slight right toward WA 18 East: Auburn, Muckleshoot Reservation
2644 ft · 1 min
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7
Merge slight left onto State Route 18
27.3 mi · 35 min · State Route 18
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8
Continue on Snoqualmie Parkway
656 ft · 8 sec · Snoqualmie Parkway
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9
Take the exit slight right toward I 90 East: Spokane
3019 ft · 1 min
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10
Merge slight left
84.5 mi · 1 hr 33 min
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11
Take the exit slight right toward I 82 East, US 97 South: Yakima
37.8 mi · 43 min
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12
Keep slight left
64.1 mi · 1 hr 9 min
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13
Take the exit slight right toward I‑182 east, US 12 east: Richland, Pasco
5.5 mi · 6 min
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14
Take the exit slight right toward SR 240 east: Kennewick
7.3 mi · 9 min
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15
Enter the roundabout and take exit 2 toward West Columbia Drive
718 ft · 9 sec · West Columbia Drive
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16
Exit the roundabout onto West Columbia Drive
2794 ft · 1 min · West Columbia Drive
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17
Turn right onto North Fruitland Street
2961 ft · 2 min · North Fruitland Street
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18
Turn right onto West Kennewick Avenue
2790 ft · 1 min · West Kennewick Avenue
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19
Turn right onto North Newport Street
706 ft · 31 sec · North Newport Street
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20
Arrive at your destination
0 m · 1 sec · North Newport Street
Car Route Details
A richer read on the saved driving route between Lacey and Kennewick.
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 East
Merge slight left
84.5 mi · 01h 33m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Light Rain Likely leaving Lacey and Rain Likely near Kennewick.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lacey to Kennewick?
The road trip is about 251.6 miles (404.9 km) and usually takes 04h 15m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
South Cle Elum is a useful midpoint, sitting about 131.5 miles from Lacey and 120 miles from Kennewick.
How much longer is the road route than the straight-line distance?
The direct path is about 183.9 miles (296 km), while the road route adds roughly 67.7 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:28 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.47 one way or $92.94 round trip. Estimated CO2 is about 78.9 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Lacey and Rain Likely near Kennewick.
Stop Ideas Near South Cle Elum
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 South Cle Elum.
Leavenworth, Washington
Leavenworth
Columbia Station
Stevens Pass, Washington
Flight Path Map
This map shows the direct air route between Lacey and Kennewick. Straight-line distance: 183.9 mi (295.96 km).
#1 Lacey
The most populous city in Thurston County, Washington.
| Population | 54,178 |
| Coordinates | 47.0342600, -122.8231900 |
| Altitude | 62 |
| Country | United States |
#2 Kennewick
The second most populous city in Benton County, Washington.
| Population | 84,515 |
| Coordinates | 46.2112500, -119.1372300 |
| Altitude | 124 |
| Country | United States |
End: North Newport Street (-119.137182, 46.21125)
Estimated Travel Time
Distance: 405 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 22m |
| 40 mph (64.37 km/h) | 06h 17m |
| 50 mph (80.47 km/h) | 05h 01m |
| 60 mph (96.56 km/h) | 04h 11m |
| 70 mph (112.65 km/h) | 03h 35m |
| 80 mph (129 km/h) | 03h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $46.47 | $92.94 |
| Mid-grade | $5.57 | $49.43 | $98.87 |
| Premium | $5.77 | $51.25 | $102.49 |
| Diesel | $5.47 | $48.55 | $97.09 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.