How far is Tumwater, WA from Kennewick, WA?
The driving distance from Tumwater, WA to Kennewick, WA is about 256.5 miles (412.8 km), with a travel time of about 04h 34m by car.
- The straight-line flight distance is about 187.3 miles (301.4 km).
- For a round trip, plan for roughly 09h 09m 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 34m.
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.
City in Yakima County, Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Tumwater and Kennewick.
Turn-by-Turn Driving Directions
Step-by-step road directions between Tumwater and Kennewick.
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1
Start on the route
24 m · 5 sec
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2
Turn slight left onto 4th Avenue Southwest
91 m · 12 sec · 4th Avenue Southwest
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3
Turn right onto I Street Southwest
77 m · 19 sec · I Street Southwest
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4
Turn sharp right onto 2nd Avenue Southwest
158 m · 22 sec · 2nd Avenue Southwest
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5
Turn left onto Linwood Avenue Southwest
156 m · 18 sec · Linwood Avenue Southwest
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6
Turn right onto Capitol Boulevard Southeast
2434 ft · 59 sec · Capitol Boulevard Southeast
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7
Turn right onto Trosper Road Southwest
133 m · 15 sec · Trosper Road Southwest
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8
Enter the roundabout and take exit 1 toward Trosper Road Southwest
23 m · 2 sec · Trosper Road Southwest
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9
Exit the roundabout onto Trosper Road Southwest
575 ft · 12 sec · Trosper Road Southwest
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10
Take the ramp slight right
2461 ft · 1 min
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11
Merge slight left
33.7 mi · 38 min
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12
Take the exit slight right toward US 12 East: Morton, Yakima
2160 ft · 1 min
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13
Continue straight
118.9 mi · 2 hr 23 min
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14
Continue straight
23.5 mi · 31 min
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15
Keep slight left
64.1 mi · 1 hr 9 min
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16
Take the exit slight right toward I‑182 east, US 12 east: Richland, Pasco
5.5 mi · 6 min
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17
Take the exit slight right toward SR 240 east: Kennewick
7.3 mi · 9 min
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18
Enter the roundabout and take exit 2 toward West Columbia Drive
718 ft · 9 sec · West Columbia Drive
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19
Exit the roundabout onto West Columbia Drive
2794 ft · 1 min · West Columbia Drive
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20
Turn right onto North Fruitland Street
2961 ft · 2 min · North Fruitland Street
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21
Turn right onto West Kennewick Avenue
2790 ft · 1 min · West Kennewick Avenue
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22
Turn right onto North Newport Street
706 ft · 31 sec · North Newport Street
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23
Arrive at your destination
0 m · 1 sec · North Newport Street
Car Route Details
A richer read on the saved driving route between Tumwater 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.
US 12 East
Continue straight
119 mi · 02h 23m
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.
Partly Sunny leaving Tumwater and Mostly Sunny near Kennewick.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Tumwater to Kennewick?
The road trip is about 256.5 miles (412.8 km) and usually takes 04h 34m 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?
Tieton is a useful midpoint, sitting about 128.1 miles from Tumwater and 128.4 miles from Kennewick.
How much longer is the road route than the straight-line distance?
The direct path is about 187.3 miles (301.4 km), while the road route adds roughly 69.2 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 7:50 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.36 one way or $94.72 round trip. Estimated CO2 is about 80.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Tumwater and Mostly Sunny near Kennewick.
Stop Ideas Near Tieton
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 Tieton.
Columbia Station
Quincy, Washington
Leavenworth, Washington
Leavenworth
Flight Path Map
This map shows the direct air route between Tumwater and Kennewick. Straight-line distance: 187.28 mi (301.39 km).
#1 Tumwater
City in Thurston County, Washington, United States
| Population | 24,272 |
| Coordinates | 47.0073200, -122.9093100 |
| Altitude | 53 |
| 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: 413 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 32m |
| 40 mph (64.37 km/h) | 06h 24m |
| 50 mph (80.47 km/h) | 05h 07m |
| 60 mph (96.56 km/h) | 04h 16m |
| 70 mph (112.65 km/h) | 03h 39m |
| 80 mph (129 km/h) | 03h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $47.36 | $94.72 |
| Mid-grade | $5.57 | $50.38 | $100.76 |
| Premium | $5.77 | $52.23 | $104.46 |
| Diesel | $5.47 | $49.48 | $98.95 |
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 · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.