How far is Spokane Valley, WA from Prosser, WA?
The driving distance from Spokane Valley, WA to Prosser, WA is about 178.2 miles (286.8 km), with a travel time of about 03h 17m by car.
- The straight-line flight distance is about 156.5 miles (251.9 km).
- For a round trip, plan for roughly 06h 35m 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 03h 17m.
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
Rain Likely
Driving Route Map
The map below follows the saved road route between Spokane Valley and Prosser.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spokane Valley and Prosser.
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1
Start on North Pines Road
820 ft · 27 sec · North Pines Road
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2
Turn left onto East Montgomery Avenue
47 m · 6 sec · East Montgomery Avenue
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3
Take the ramp slight left
1753 ft · 43 sec
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4
Merge slight left onto Spokane Valley Freeway
11.3 mi · 14 min · Spokane Valley Freeway
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5
Keep slight left
56.6 mi · 1 hr 1 min
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6
Keep slight right to continue on Thomas S. Foley Memorial Highway
73.7 mi · 1 hr 19 min · Thomas S. Foley Memorial Highway
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7
Take the exit slight right toward I 182 West, US 395 South: Richland, Pendleton
3076 ft · 1 min
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8
Merge slight left onto Lewis and Clark Trail
1.9 mi · 2 min · Lewis and Clark Trail
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9
Keep slight left to continue on I 182, US 12
11.8 mi · 13 min
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10
Keep slight right to continue on I 82 West, US 12 West: Prosser, Yakima
20 mi · 21 min
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11
Take the exit slight right toward SR 22 to SR 221: Mabton, Paterson
1826 ft · 50 sec
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12
Turn left onto Wine Country Road
1 mi · 2 min · Wine Country Road
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13
Turn left onto Meade Avenue
2599 ft · 1 min · Meade Avenue
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14
Turn right onto 7th Street
103 m · 14 sec · 7th Street
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15
Turn right onto Bennett Avenue
22 m · 3 sec · Bennett Avenue
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16
Arrive at your destination
0 m · 1 sec · Bennett Avenue
Car Route Details
A richer read on the saved driving route between Spokane Valley and Prosser.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Thomas S. Foley Memorial Highway
Keep slight right to continue on Thomas S. Foley Memorial Highway
73.7 mi · 01h 19m
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 leaving Spokane Valley and Rain Likely near Prosser.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spokane Valley to Prosser?
The road trip is about 178.2 miles (286.8 km) and usually takes 03h 17m 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?
Lind is a useful midpoint, sitting about 89 miles from Spokane Valley and 89.2 miles from Prosser.
How much longer is the road route than the straight-line distance?
The direct path is about 156.5 miles (251.9 km), while the road route adds roughly 21.7 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 10:24 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.92 one way or $65.83 round trip. Estimated CO2 is about 55.9 kg one way.
What should you check before leaving?
Before you leave, expect Rain around Spokane Valley and Rain Likely near Prosser.
Stop Ideas Near Lind
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 Lind.
Ritzville, Washington
Moses Lake, Washington
Ephrata
Ephrata, WA
Flight Path Map
This map shows the direct air route between Spokane Valley and Prosser. Straight-line distance: 156.53 mi (251.91 km).
#1 Spokane Valley
The most populous city in Spokane County, Washington.
| Population | 102,893 |
| Coordinates | 47.6732300, -117.2393700 |
| Altitude | 615 |
| Country | United States |
#2 Prosser
County seat of Benton County, Washington
| Population | 6,398 |
| Coordinates | 46.2068000, -119.7689200 |
| Altitude | 203 |
| Country | United States |
End: Prosser (-119.76892, 46.2068)
Estimated Travel Time
Distance: 287 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 56m |
| 40 mph (64.37 km/h) | 04h 27m |
| 50 mph (80.47 km/h) | 03h 33m |
| 60 mph (96.56 km/h) | 02h 58m |
| 70 mph (112.65 km/h) | 02h 32m |
| 80 mph (129 km/h) | 02h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $32.92 | $65.83 |
| Mid-grade | $5.57 | $35.02 | $70.03 |
| Premium | $5.77 | $36.30 | $72.60 |
| Diesel | $5.47 | $34.39 | $68.77 |
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.