How far is Union Gap, WA from Kennewick, WA?
The driving distance from Union Gap, WA to Kennewick, WA is about 79.7 miles (128.3 km), with a travel time of about 01h 17m by car.
- The straight-line flight distance is about 68.1 miles (109.6 km).
- For a round trip, plan for roughly 02h 34m 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 01h 17m.
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 Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Light Rain then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Union Gap and Kennewick.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union Gap and Kennewick.
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1
Start on the route
24 m · 8 sec
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2
Turn right
21 m · 7 sec
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3
Turn right onto East Ahtanum Road
40 m · 11 sec · East Ahtanum Road
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4
Turn left onto Main Street
1.5 km · 2 min · Main Street
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5
Turn slight right
1129 ft · 19 sec
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6
Take the ramp straight
1408 ft · 34 sec
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7
Keep slight right
1286 ft · 31 sec
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8
Merge slight left
63.4 mi · 1 hr 8 min
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9
Take the exit slight right toward I‑182 east, US 12 east: Richland, Pasco
5.5 mi · 6 min
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10
Take the exit slight right toward SR 240 east: Kennewick
7.3 mi · 9 min
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11
Enter the roundabout and take exit 2 toward West Columbia Drive
718 ft · 9 sec · West Columbia Drive
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12
Exit the roundabout onto West Columbia Drive
2794 ft · 1 min · West Columbia Drive
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13
Turn right onto North Fruitland Street
2961 ft · 2 min · North Fruitland Street
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14
Turn right onto West Kennewick Avenue
2790 ft · 1 min · West Kennewick Avenue
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15
Turn right onto North Newport Street
706 ft · 31 sec · North Newport Street
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16
Arrive at your destination
0 m · 1 sec · North Newport Street
Car Route Details
A richer read on the saved driving route between Union Gap and Kennewick.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Main Street
Merge slight left
63.4 mi · 01h 08m
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.
Sunny leaving Union Gap and Slight Chance Light Rain then Mostly Sunny near Kennewick.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union Gap to Kennewick?
The road trip is about 79.7 miles (128.3 km) and usually takes 01h 17m 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?
Grandview is a useful midpoint, sitting about 39.8 miles from Union Gap and 39.9 miles from Kennewick.
How much longer is the road route than the straight-line distance?
The direct path is about 68.1 miles (109.6 km), while the road route adds roughly 11.6 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 3:56 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.70 one way or $29.41 round trip. Estimated CO2 is about 25 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union Gap and Slight Chance Light Rain then Mostly Sunny near Kennewick.
Stop Ideas Near Grandview
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 Grandview.
Pasco Intermodal Train Station
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Flight Path Map
This map shows the direct air route between Union Gap and Kennewick. Straight-line distance: 68.1 mi (109.59 km).
#1 Union Gap
City in Yakima County, Washington, United States
| Population | 6,160 |
| Coordinates | 46.5573500, -120.4750600 |
| Altitude | 300 |
| 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: 128 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 39m |
| 40 mph (64.37 km/h) | 01h 59m |
| 50 mph (80.47 km/h) | 01h 35m |
| 60 mph (96.56 km/h) | 01h 19m |
| 70 mph (112.65 km/h) | 01h 08m |
| 80 mph (129 km/h) | 00h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $14.70 | $29.41 |
| Mid-grade | $5.57 | $15.64 | $31.29 |
| Premium | $5.77 | $16.22 | $32.43 |
| Diesel | $5.47 | $15.36 | $30.72 |
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.