Napavine, WA to Spokane Valley, WA is 348.1 miles and takes about 6h 39m via I 90 and US 12, with a fuel budget near $78 and enough daylight to finish in a day. This trip stays entirely within Washington state, connecting the Pacific Coast region to the eastern side of the state. It's a straightforward, mostly highway drive that's well-suited for a single day's travel. You'll find it efficient for getting from point A to point B without extensive detours.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
174 miles from Napavine, WA
A natural place for your longest stop of the day
, about 3h 30m into the drive
.
Main Roads
Road
Distance
Duration
I 90
177.6 mi
3h 12m
US 12
133.2 mi
2h 41m
I 82
30.3 mi
32m
Koontz Road
3.7 mi
6m
Jackson Highway
1.5 mi
2m
East Washington Street
0.2 mi
<1m
North Pines Road
<0.1 mi
<1m
Selah Road
<0.1 mi
<1m
Longest stretch:
I 90
— 177.6 mi, about 3h 12m
Traffic on I-90
Hour-of-day weekday pattern from 72 FHWA count stations on your route.
Peak
3 PM
~1,520 veh/hr typical
· worst 1,907
Quietest
1 AM
~102 veh/hr
Peak-to-quiet ratio
14.9×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Napavine, WA and Spokane Valley, WA.
1
Start on East Washington Street
0.2 mi·21 sec·East Washington Street
2
Continue on Koontz Road
3.7 mi·6 min·Koontz Road
3
Turn right onto Jackson Highway
1.5 mi·2 min·Jackson Highway
4
Turn left onto US 12
116 mi·2 hr 18 min·US 12
5
Continue on US 12
17 mi·22 min·US 12
6
Take the exit
0.3 mi·49 sec
Toward I 82 West, US 97 North: Selah, Ellensburg
7
Turn straight onto WA 823
100 ft·1 sec·Selah Road
8
Take the ramp
111 ft·2 sec
9
Keep slight left at fork
0.2 mi·31 sec
10
Merge onto I 82; US 97
30 mi·32 min·I 82; US 97
11
Keep slight right at fork
0.6 mi·54 sec
Toward I 90 East: Vantage, Spokane
12
Merge onto I 90
166 mi·2 hr 58 min·I 90
13
Merge onto I 90; US 2; US 395
11 mi·14 min·I 90; US 2; US 395
14
Take the exit
0.4 mi·51 sec
Toward WA 27
15
Turn left onto WA 27
148 ft·11 sec·North Pines Road
Use the straight / left lanes.
16
Arrive at destination
WA 27
Trip Plan
Given the 6-hour 39-minute estimated drive time, starting in the morning is advisable to allow for a comfortable pace. With only one recommended stop and a high highway share, you won't need to break this drive up significantly. Keep an eye on your fuel levels, as stretches between services can be longer on the interstate. The 177.6-mile segment on I 90, for instance, means you'll want to plan your refueling before entering that longer stretch if your tank is low. This route is efficient, so you can focus on enjoying the drive rather than navigating complex intersections.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 174 miles from Napavine, WA, or about 3h 30m into the drive.
The longest continuous stretch on this route runs about 177.6 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 77 miles or 1h 35m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 174 miles or 3h 30m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 32m
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 Napavine, 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 Napavine, WA
This is one driving day of about 348.1 miles and 6h 39m.
Your first comfortable stop window is around 77 miles from Napavine, 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 I 90 for about 177.6 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 11
5 decision points cluster between mile 3.9 and 347.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
3.9 mi into trip|~6m in|Jackson Highway
Turn right onto Jackson Highway
Navigation decision point
5
138.6 mi into trip|~2h 51m in
Take the exit toward I 82 West, US 97 North: Selah, Ellensburg
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 82 West, US 97 North: Selah, Ellensbur...
5
138.9 mi into trip|~2h 51m in
Keep slight left at fork
Highway fork - watch signs carefully
6
169.5 mi into trip|~3h 25m in
Keep slight right at fork toward I 90 East: Vantage, Spokane
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 90 East: Vantage, Spokane
4
347.7 mi into trip|~6h 38m in
Take the exit toward WA 27
Exit ramp - move to the correct lane early
Toward WA 27
Fuel & Cost
Regular Gas
$67.81 one way
$135.62 round trip
$4.95/gal25.4 MPG avg122 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.18
$71.05
$142.09
premium
$5.39
$73.88
$147.76
diesel
$4.80
$65.73
$131.46
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$68
Meals
$25–$50
Total
$93–$118
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 121.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $37 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
104.4
1
$36.55
$16.71
Efficient EV
87
0
$30.46
$13.92
EV Truck/SUV
139.2
1
$48.73
$22.28
Gas CO2
122 kg
EV CO2
41 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Jul 17, 2026
Origin
Napavine, WA
Late night
in Napavine on Monday
Local time
12:39 AM
PDT
Current temp
50°F
Areas Of Fog
SSE 2 mph0% chanceLive forecast
Red Flag Warning
Red Flag Warning issued July 16 at 8:50PM PDT until July 17 at 5:00AM PDT by NWS Spokane WA
Red Flag Warning
Red Flag Warning issued July 16 at 8:50PM PDT until July 17 at 7:00AM PDT by NWS Spokane WA
Destination
Spokane Valley, WA
Late night
in Spokane Valley on Monday
Local time
12:39 AM
PDT
Current temp
63°F
Chance Showers And Thunderstorms
S 3 mph34% chanceLive forecast
Red Flag Warning
Red Flag Warning issued July 16 at 8:50PM PDT until July 17 at 5:00AM PDT by NWS Spokane WA
Red Flag Warning
Red Flag Warning issued July 16 at 8:50PM PDT until July 17 at 7:00AM PDT by NWS Spokane WA
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
13 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
6h 39m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Mount Rainier National Park
National Park
Ascending to 14,410 feet above sea level, Mount Rainier stands as an icon in the Washington landscape. An active volcano, Mount Rainier is the most glaciated peak in the contiguous U.S.A., spawning fi...
15 mi from route
~37 min detour
$30
near mile 72
Park Closure: Regular nightly closures of the Longmire gate have ended for the season.
Park Closure: SR 165 Carbon River/Fairfax Bridge is closed: no access to Carbon River or Mowich Lake.
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is 98% highway, meaning you'll spend almost all of your time on major interstates and US highways. The longest continuous stretch you'll encounter is 177.6 miles on I 90. Expect to see a consistent flow of traffic and frequent, but not overwhelming, exit activity for much of the route. The transition from surface roads to the highway system is minimal, as the primary roads are dominant for the entire trip.
98% highway — fuel and pacing are the main things to plan.
16 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 177.6 mi on I 90.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on I 90 and US 12. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes around 3.9 miles in near Jackson Highway.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 348.1 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 3.9 miles (Jackson Highway): Navigation decision point; at 138.6 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 138.9 miles: Highway fork - watch signs carefully.
Elevation Profile
Hilly terrain with moderate elevation changes
2,959 ft449 ft
Total Climb
4,444 ft
Total Descent
2,879 ft
Highest Point
2,959 ft
~101.4 mi in
Elevation Range
2,510 ft
Notable High Points
2,959 ft at ~101.4 miles+1,438 ft prominence
2,254 ft at ~152.1 miles+637 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Napavine, WA and Spokane Valley, WA, road signs point toward Ellensburg and Spokane.
Spokane is the second-largest city in Washington State, and the largest between Seattle and Minneapolis. It is the economic hub of the "Inland Empire", a name used for Eastern Washington and the Idaho Panhandle (pre-dating by nearly a century the use of the same title by a region in Southern California). It is at the north edge of the Palouse, where gently rolling hills of wheat fields end at the Spokane River valley.
This article also includes the suburbs of Liberty Lake and Spokane Valley.
Doable as a same-day drive at 6h 39m. Total distance: 348.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 39m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (98%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 177.6 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 21 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This is a long drive, so arriving tired and in the dark compounds. 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. There are 21 rest areas along the route for bathroom stops.
The main spots that need attention: at 3.9 miles (Jackson Highway): Navigation decision point; at 138.6 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 138.9 miles: Highway fork - watch signs carefully.
Yes — Mount Rainier National Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.7 hours each way, a round trip means 13.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Spokane Valley, WA before the return drive.
