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Trip from Prosser, WA to Spokane Valley, WA

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

3h 17m

Distance

178.5 mi

287 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$37

one way

EV Charging

Good

8 stations

Best Time to Leave

Save up to 35 min
4 AM
3h 6m ★
6 AM
3h 18m
8 AM
3h 41m
10 AM
3h 26m
12 PM
3h 24m
3 PM
3h 27m
5 PM
3h 40m
8 PM
3h 10m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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Downtown Prosser, WA, WA

Prosser, WA

nicholas hatherly

Trip Overview

This 178.5-mile drive from Prosser, WA, to Spokane Valley, WA, takes approximately 3 hours and 17 minutes and is a straightforward, highway-focused journey. With 99% of the route on major highways like US 395, I 82, and US 12, it’s perfectly suited for a single-day trip. You can expect a fuel cost of around $37 for this route. Given the relatively short duration and efficient path, this drive is ideal for a day trip, allowing you to reach your destination without needing an overnight stay. Both your origin and destination are within the Pacific Coast region, so you'll be exploring within the same general geographic area of Washington state.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

1 planned break

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

89.3 miles from Prosser, WA

A natural place for your longest stop of the day , about 1h 38m into the drive .

Main Roads

Road Distance Duration
US 395 131.2 mi 2h 21m
I 82 18.9 mi 20m
US 12 14.9 mi 16m
I 90 11.3 mi 14m
Wine Country Road 0.8 mi 1m
Meade Avenue 0.4 mi 1m
Bennett Avenue <0.1 mi <1m
8th Street <0.1 mi <1m
Longest stretch: US 395 — 131.2 mi, about 2h 21m

Turn-by-Turn Driving Directions

Step-by-step road directions between Prosser, WA and Spokane Valley, WA.

1

Start on Bennett Avenue

408 ft · 19 sec · Bennett Avenue
2

Turn right onto 8th Street

323 ft · 19 sec · 8th Street
3

Turn left onto Meade Avenue

0.4 mi · 1 min · Meade Avenue
4

At end of road, turn right onto Wine Country Road

0.8 mi · 1 min · Wine Country Road
5

Take the ramp

0.5 mi · 30 sec
6

Merge onto I 82; US 12

19 mi · 20 min · I 82; US 12
7

Take the exit onto US 12

15 mi · 16 min · US 12
Exit 102 Toward I‑182 east, US 12 east: Richland, Pasco Use the straight / slight right lanes.
8

Take the exit onto US 395

0.2 mi · 21 sec · US 395
Toward US 395 north, SR 397 south (Oregon Street): Spokane, Finley Use the straight / slight right lanes.
9

Keep slight left at fork onto US 395

0.3 mi · 34 sec · US 395
Toward US 395
10

Keep slight right at fork onto US 395

131 mi · 2 hr 20 min · US 395
Toward US 395 North: Spokane Use the slight right lane.
11

Merge onto I 90; US 2; US 395

11 mi · 14 min · I 90; US 2; US 395
12

Take the exit

0.4 mi · 51 sec
Toward WA 27
13

Turn left onto WA 27

148 ft · 11 sec · North Pines Road
Use the straight / left lanes.
14

Arrive at destination

WA 27

Trip Plan

Given the 3-hour and 17-minute duration for this 178.5-mile trip, it's easily manageable as a single-day excursion. Aim to depart in the morning to maximize daylight and allow for flexibility. With only one recommended stop, plan your breaks strategically, perhaps around the halfway point or before embarking on the longest 131.2-mile stretch on US 395. The fuel cost is estimated at $37, so ensure your tank is adequately filled before you set off, especially since it's a highway-focused drive. Keep an eye on your fuel gauge, as services might be more spaced out during the longer highway segments.

Morning Departure

An early start around 7-8 AM gets you there with plenty of daylight left.

Evening Departure

A late afternoon start means arriving after dark. Morning is better.

You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 89.3 miles from Prosser, WA, or about 1h 38m into the drive.
The longest continuous stretch on this route runs about 131.2 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 39 miles or 44m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 89.3 miles or 1h 38m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 2h 40m

Traffic, exits, and arrival timing usually matter more near Spokane Valley, WA than in the middle of the route.

Before You Leave

+

Open the route before leaving Prosser, WA so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Prosser, WA

This is one driving day of about 178.5 miles and 3h 17m.

Your first comfortable stop window is around 39 miles from Prosser, WA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on US 395 for about 131.2 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

small city, county seat of Adams County, Washington, USA

Mid-route town

Meal stop

Ritzville, WA

89 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Popular next leg

Ritzville, WA to Spokane Valley, WA

68.3 mi · 1h 19m

Pacing Suggestions

Pasco, WA

Fuel and coffee

A short stop after about 39 miles helps settle the day before fatigue starts building.

Ritzville, WA

Meal break

The midpoint is around 89.3 miles from Prosser, WA, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before US 395 if your tank is already low. That segment runs about 131.2 miles.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Nearby Places

Restaurants, cafes, gas stations and more along your route.

Top Restaurant

Goldan Yan Restaurant

4.3 ★ ★ ★ ★ ☆

Prosser, Washington

Near the start, right off the route

0.1 mi from route $10 to $20

Hours: 11 am–8:30 pm

+15097863902

Visit website

Sterling's Restaurant - Queensgate

4.2 ★ ★ ★ ★ ☆

Richland, Washington

1 mi

Fiesta Mexican Restaurant

4.5 ★ ★ ★ ★ ★

Richland, Washington

1.2 mi

Top Coffee Stop

Northwest Museum of Arts & Culture

4.6 ★ ★ ★ ★ ★

Spokane, Washington

Near the end, short detour

2.9 mi from route ~7 min detour mile 165.8

Hours: 10 am–5 pm

+15094563931

Visit website

Caffe Capri

4.4 ★ ★ ★ ★ ☆

Spokane, Washington

3 mi

Shade Cafe

4.5 ★ ★ ★ ★ ★

Richland, Washington

3 mi

Goldan Yan Restaurant

4.3 ★ ★ ★ ★ ☆

Near the start, right off the route

0.1 mi from route $10 to $20

Prosser, Washington

Hours: 11 am–8:30 pm

+15097863902

Visit website

Sterling's Restaurant - Queensgate

4.2 ★ ★ ★ ★ ☆

Near the start, right off the route

1 mi from route ~2 min detour Moderately mile 25.5

Richland, Washington

Hours: 6 am–9 pm

+15096282414

Visit website

Fiesta Mexican Restaurant

4.5 ★ ★ ★ ★ ★

Near the start, short detour

1.2 mi from route ~3 min detour $20 to $30 mile 25.5

Richland, Washington

Hours: 11 am–9 pm

+15092190552

Visit website

Applebee's Grill + Bar

4.1 ★ ★ ★ ★ ☆

Near the start, right off the route

1 mi from route ~2 min detour Moderately mile 25.5

Richland, Washington

Hours: 11 am–12 pm

+15099421513

Visit website

Hops n Drops

4.3 ★ ★ ★ ★ ☆

Near the start, short detour

1.1 mi from route ~3 min detour $20 to $30 mile 25.5

Richland, Washington

Hours: 11 am–11 pm

+15094913062

Visit website

Frost Me Sweet Bistro & Bakery

4.5 ★ ★ ★ ★ ★

Near the start, short detour

1.3 mi from route ~3 min detour $20 to $30 mile 25.5

Richland, Washington

Hours: 10 am–5 pm

+15094204704

Visit website

Monterosso's Italian Restaurant

4.4 ★ ★ ★ ★ ☆

Near the start, short detour

1.2 mi from route ~3 min detour Moderately mile 25.5

Richland, Washington

Hours: 4–8 pm

+15099464525

Visit website

Casa Mia Richland Italian Restaurant

4.2 ★ ★ ★ ★ ☆

Near the start, short detour

1.2 mi from route ~3 min detour $20 to $30 mile 25.5

Richland, Washington

Hours: 11 am–9 pm

+15099460500

Visit website

Northwest Museum of Arts & Culture

4.6 ★ ★ ★ ★ ★

Near the end, short detour

2.9 mi from route ~7 min detour mile 165.8

Spokane, Washington

Hours: 10 am–5 pm

+15094563931

Visit website

Caffe Capri

4.4 ★ ★ ★ ★ ☆

Near the end, short detour

3 mi from route ~7 min detour $1 to $10 mile 165.8

Spokane, Washington

Hours: 7 am–6 pm

+15097473088

Visit website

Shade Cafe

4.5 ★ ★ ★ ★ ★

Near the start, short detour

3 mi from route ~8 min detour $1 to $10 mile 25.5

Richland, Washington

Hours: 7 am–6 pm

+15094101769

Visit website

Ladder Coffee Roasters-Downtown

4.5 ★ ★ ★ ★ ★

Near the end, short detour

3.3 mi from route ~8 min detour $1 to $10 mile 165.8

Spokane, Washington

Hours: 7 am–3 pm

+15099925258

Visit website

First Avenue Coffee

4.6 ★ ★ ★ ★ ★

Near the end, ~9 min detour

3.5 mi from route ~9 min detour $1 to $10 mile 165.8

Spokane, Washington

Hours: 7 am–4 pm

+15099708185

Visit website

Indaba Coffee

4.6 ★ ★ ★ ★ ★

Near the end, ~9 min detour

3.7 mi from route ~9 min detour $1 to $10 mile 165.8

Spokane, Washington

Hours: 7 am–5 pm

+15094433566

Visit website

Atticus Coffee & Gifts

4.6 ★ ★ ★ ★ ★

Near the end, ~10 min detour

3.9 mi from route ~10 min detour $10 to $20 mile 165.8

Spokane, Washington

Hours: 7:30 am–6 pm

+15097470336

Visit website

Rivian Adventure Network

3.7 ★ ★ ★ ★ ☆

Near the end, short detour

1.6 mi from route ~4 min detour mile 178.5

Spokane, Washington

Hours: Open 24 hours

+18337484267

Visit website

Tesla Destination Charger

4.5 ★ ★ ★ ★ ★

Near the end, short detour

2.4 mi from route ~6 min detour mile 165.8

Spokane, Washington

+15092445866

Visit website

Electrify America Charging Station

3.4 ★ ★ ★ ☆ ☆

Near the end, short detour

2.4 mi from route ~6 min detour mile 178.5

Spokane Valley, Washington

Hours: Open 24 hours

+18336322778

Visit website

ChargePoint Charging Station

4.0 ★ ★ ★ ★ ☆

Near the end, short detour

2.2 mi from route ~6 min detour mile 165.8

Spokane, Washington

Hours: Open 24 hours

+18887584389

Visit website

EV Connect Charging Station

2.5 ★ ★ ★ ☆ ☆

Near the end, short detour

1.7 mi from route ~4 min detour mile 178.5

Spokane Valley, Washington

+18668167584

Visit website

ChargePoint Charging Station

3.3 ★ ★ ★ ☆ ☆

Near the end, short detour

2.4 mi from route ~6 min detour mile 165.8

Spokane, Washington

Hours: Open 24 hours

+18887584389

Visit website

EV Connect Charging Station

4.7 ★ ★ ★ ★ ★

Near the end, ~9 min detour

3.5 mi from route ~9 min detour mile 165.8

Airway Heights, Washington

+31880109500

Visit website

EV Connect Charging Station

5.0 ★ ★ ★ ★ ★

Near the end, ~10 min detour

3.8 mi from route ~10 min detour mile 165.8

Spokane, Washington

+18668167584

Visit website

PerplEXIT Puzzle Rooms

4.9 ★ ★ ★ ★ ★

Near the start, short detour

1.6 mi from route ~4 min detour mile 25.5

Richland, Washington

Hours: 10 am–9 pm

+15099401868

Visit website

Flying Squirrel Trampoline Park

4.3 ★ ★ ★ ★ ☆

Near the end, short detour

2.3 mi from route ~6 min detour mile 178.5

Spokane Valley, Washington

Hours: 2–9 pm

+15092423831

Visit website

Leslie Groves Park

4.6 ★ ★ ★ ★ ★

Near the start, ~9 min detour

3.6 mi from route ~9 min detour mile 25.5

Richland, Washington

Hours: 5 am–11 pm

+15099427529

Visit website

Manito Park

4.8 ★ ★ ★ ★ ★

Near the end, ~10 min detour

3.8 mi from route ~10 min detour mile 165.8

Spokane, Washington

+15096256200

Visit website

Fast Track Tri Cities

4.6 ★ ★ ★ ★ ★

Near the start, ~9 min detour

3.5 mi from route ~9 min detour mile 25.5

Kennewick, Washington

+15417017253

Visit website

REACH Museum

4.6 ★ ★ ★ ★ ★

Near the start, ~9 min detour

3.7 mi from route ~9 min detour mile 25.5

Richland, Washington

Hours: 10 am–4:30 pm

+15099434100

Visit website

Riverfront Park

4.7 ★ ★ ★ ★ ★

Near the end, ~10 min detour

3.9 mi from route ~10 min detour mile 165.8

Spokane, Washington

Hours: 6 am–12 pm

+15096256600

Visit website

Mobius Discovery Center

4.5 ★ ★ ★ ★ ★

Near the end, ~10 min detour

3.9 mi from route ~10 min detour mile 165.8

Spokane, Washington

Hours: 10 am–5 pm

+15093217121

Visit website

Place data sourced from public business listings. Hours and availability may vary.

Heads-up: tricky spots

5 of 12

5 decision points cluster between mile 0.1 and 36.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

4
0.1 mi into trip | ~0m in | 8th Street

Turn right onto 8th Street

Navigation decision point

8
20.7 mi into trip | ~24m in | US 12

Take the exit onto US 12 toward I‑182 east, US 12 east: Richland, Pasco

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Exit 102 Toward I‑182 east, US 12 east: Richland, Pasco
7
35.6 mi into trip | ~40m in | US 395

Take the exit onto US 395 toward US 395 north, SR 397 south (Oregon Street): Spokane, Finley

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Toward US 395 north, SR 397 south (Oregon Stree...
6
35.8 mi into trip | ~40m in | US 395

Keep slight left at fork onto US 395 toward US 395

Highway fork - watch signs carefully

Toward US 395
7
36.1 mi into trip | ~41m in | US 395

Keep slight right at fork onto US 395 toward US 395 North: Spokane

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight right lane. Toward US 395 North: Spokane

Fuel & Cost

Regular Gas

$37.36 one way

$74.72 round trip

$5.32/gal 25.4 MPG avg 63 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $5.58 $39.18 $78.36
premium $5.77 $40.53 $81.07
diesel $5.61 $39.41 $78.82

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$37

Meals

$25–$50

Total

$62–$87

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 62.5 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $19 in charging · 0 stops · 66% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 53.6 0 $18.74 $8.57
Efficient EV 44.6 0 $15.62 $7.14
EV Truck/SUV 71.4 0 $24.99 $11.42

Gas CO2

62 kg

EV CO2

21 kg (66% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 16, 2026

Origin

Prosser, WA

Night in Prosser on Saturday

Local time

9:42 PM

PDT

Current temp

47°F

Unavailable

Live forecast

Destination

Spokane Valley, WA

Night in Spokane Valley on Saturday

Local time

9:42 PM

PDT

Current temp

50°F

Chance Light Snow

W 8 mph 45% chance Live forecast

Freeze Warning

Freeze Warning issued April 16 at 6:46AM PDT until April 17 at 9:00AM PDT by NWS Pendleton OR

Freeze Warning

Freeze Warning issued April 16 at 6:46AM PDT until April 17 at 9:00AM PDT by NWS Pendleton OR

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

3 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

3h 17m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

Prepare for a predominantly highway experience, with 99% of your 178.5-mile journey on major roads. The character of this drive is largely defined by its efficient, high-speed stretches. You’ll encounter the longest uninterrupted segment of 131.2 miles on US 395, offering a consistent pace for a significant portion of your travel. This route prioritizes getting you from point A to point B smoothly, with minimal deviations from the main thoroughfares. Expect a driving experience focused on maintaining speed and covering distance effectively.

99% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 131.2 mi on US 395.

How Hard Is This Drive?

7/10

This is a straightforward highway drive that stays mostly on US 395 and I 82. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near 8th Street.

Driving Effort 7/10

Demanding - plan breaks and stay ahead of the key maneuvers

Balances navigation complexity with total wheel time.

This is a demanding drive. With 12 significant decision points across 178.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.

Where does it get tricky?

The main spots that need attention: at 0.1 miles (8th Street): Navigation decision point; at 20.7 miles (US 12): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 35.6 miles (US 395): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between Prosser, WA and Spokane Valley, WA, road signs point toward I‑182 East, Pasco and Finley.

I‑182 East

20.7 mi in | ~24m | via US 12

Pasco

20.7 mi in | ~24m | via US 12

Finley

35.6 mi in | ~40m | via US 395

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 3h 17m. Total distance: 178.5 miles.

Family Friendly

Moderate complexity with 1 natural rest stops along the way.

Solo Traveler

3h 17m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (99%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 131.2 miles on US 395. The full list of main roads is in the Roads section above.

We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Spokane Valley, WA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.

The main spots that need attention: at 0.1 miles (8th Street): Navigation decision point; at 20.7 miles (US 12): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 35.6 miles (US 395): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Possible but tiring. At 3.3 hours each way, an in-and-out day trip would put you behind the wheel for 6.6 hours — manageable with a long break at Spokane Valley, WA, but most travelers stay overnight.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

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