How far is Kennewick, WA from Lacey, WA?
The driving distance from Kennewick, WA to Lacey, WA is about 263.5 miles (424.1 km), with a travel time of about 05h 06m by car.
- The straight-line flight distance is about 183.9 miles (296 km).
- For a round trip, plan for roughly 10h 13m 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 05h 06m.
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.
Rain Likely
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Kennewick and Lacey.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kennewick and Lacey.
-
1
Start on North Newport Street
706 ft · 38 sec · North Newport Street
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2
Turn left onto West Kennewick Avenue
2790 ft · 1 min · West Kennewick Avenue
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3
Turn left onto North Fruitland Street
2961 ft · 2 min · North Fruitland Street
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4
Turn left onto West Columbia Drive
2787 ft · 1 min · West Columbia Drive
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5
Enter the roundabout and take exit 1 toward the route
669 ft · 9 sec
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6
Exit the roundabout
6.4 mi · 8 min
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7
Keep slight right
5.1 mi · 5 min
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8
Continue straight
616 ft · 8 sec
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9
Keep slight right to continue on I 82 West, US 12 West: Prosser, Yakima
70.9 mi · 1 hr 17 min
-
10
Continue straight
31 mi · 34 min
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11
Keep slight left to continue on I 90 West
85.7 mi · 1 hr 36 min
-
12
Take the exit slight right toward WA 18 West: Auburn
1248 ft · 30 sec
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13
Keep slight left to continue on SR 18 west, Snoqualmie Parkway: Auburn, Tacoma
137 m · 13 sec
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14
Merge slight right onto Snoqualmie Parkway
1780 ft · 25 sec · Snoqualmie Parkway
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15
Continue on State Route 18
26.7 mi · 34 min · State Route 18
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16
Take the exit slight right toward I 5: Seattle, Tacoma
2980 ft · 1 min
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17
Keep slight left to continue on I 5 South, WA 161: Enchanted Parkway South, Tacoma
3094 ft · 1 min
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18
Keep slight left to continue on I 5 South: Tacoma
1297 ft · 32 sec
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19
Merge slight left
7.2 mi · 9 min
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20
Keep slight right
24.8 mi · 31 min
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21
Take the exit slight right toward Martin Way, College Street, Sleater-Kinney Road North
1241 ft · 33 sec
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22
Turn right onto Martin Way East
722 ft · 19 sec · Martin Way East
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23
Turn left onto College Street Southeast
1 mi · 3 min · College Street Southeast
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24
Continue on College Street Southeast
76 m · 6 sec · College Street Southeast
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25
Arrive at your destination
0 m · 1 sec · College Street Southeast
Car Route Details
A richer read on the saved driving route between Kennewick and Lacey.
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
85.7 mi · 01h 36m
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.
Rain Likely leaving Kennewick and Light Rain Likely near Lacey.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kennewick to Lacey?
The road trip is about 263.5 miles (424.1 km) and usually takes 05h 06m 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 Kennewick and 132 miles from Lacey.
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 79.6 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 6:46 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $48.67 one way or $97.33 round trip. Estimated CO2 is about 82.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain Likely around Kennewick and Light Rain Likely near Lacey.
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 Kennewick and Lacey. Straight-line distance: 183.9 mi (295.96 km).
#1 Kennewick
The second most populous city in Benton County, Washington.
| Population | 84,515 |
| Coordinates | 46.2112500, -119.1372300 |
| Altitude | 124 |
| Country | United States |
#2 Lacey
The most populous city in Thurston County, Washington.
| Population | 54,178 |
| Coordinates | 47.0342600, -122.8231900 |
| Altitude | 62 |
| Country | United States |
End: Lacey (-122.82319, 47.03426)
Estimated Travel Time
Distance: 424 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 46m |
| 40 mph (64.37 km/h) | 06h 35m |
| 50 mph (80.47 km/h) | 05h 16m |
| 60 mph (96.56 km/h) | 04h 23m |
| 70 mph (112.65 km/h) | 03h 45m |
| 80 mph (129 km/h) | 03h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $48.67 | $97.33 |
| Mid-grade | $5.57 | $51.77 | $103.55 |
| Premium | $5.77 | $53.67 | $107.34 |
| Diesel | $5.47 | $50.84 | $101.69 |
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.