Suquamish to Spokane Valley is 354.9 miles and takes about 6 hours 52 minutes via I 90 and State Highway 16, with a fuel budget near $74 and enough daylight to finish in a day. This highway-focused drive will take you across Washington State, transitioning from the Pacific Coast region to another Pacific Coast region, though the terrain will change significantly. It's a straightforward, single-day journey primarily on major highways, making it a practical option for getting across the state efficiently. Consider this route if you prioritize reaching your destination with minimal fuss and enjoy consistent highway driving.
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
177.4 miles from Suquamish, WA
A natural place for your longest stop of the day
, about 3h 37m into the drive
.
Main Roads
Road
Distance
Duration
I 90
263.1 mi
4h 46m
State Route 18
27.3 mi
34m
State Highway 16
26.5 mi
33m
State Highway 3 Northwest
16.1 mi
20m
I 5
8.5 mi
10m
State Highway 305 Northeast
6.3 mi
11m
State Highway 3 West
2.1 mi
3m
Suquamish Way Northeast
1.6 mi
3m
Longest stretch:
I 90
— 263.1 mi, about 4h 46m
Traffic on I-90
Hour-of-day weekday pattern from 63 FHWA count stations on your route.
Peak
3 PM
~1,426 veh/hr typical
· worst 2,032
Quietest
2 AM
~104 veh/hr
Peak-to-quiet ratio
13.7×
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 Suquamish, WA and Spokane Valley, WA.
1
Start on Augusta Avenue Northeast
497 ft·21 sec·Augusta Avenue Northeast
2
Turn right onto Suquamish Way Northeast
1.6 mi·3 min·Suquamish Way Northeast
3
Turn right onto WA 305
2.9 mi·4 min·State Highway 305 Northeast
Use the right lane.
4
Enter roundabout onto WA 305
108 ft·1 sec·State Highway 305 Northeast
5
Continue on WA 305
3.4 mi·6 min·State Highway 305 Northeast
Use the straight lane.
6
Take the ramp
0.5 mi·1 min
Toward WA 3 South: BremertonUse the slight right lane.
7
Merge onto WA 3
16 mi·20 min·State Highway 3 Northwest
Use the straight / slight right lanes.
8
Continue on WA 3
2.1 mi·3 min·State Highway 3 West
9
Continue on WA 16
0.2 mi·19 sec·West State Route 16
10
Continue on WA 16
27 mi·33 min·State Highway 16
Use the straight / slight right lanes.
11
Keep slight left at fork
1.0 mi·2 min
Use the straight / slight right lanes.
12
Keep slight left at fork
0.1 mi·16 sec
Toward I 5 North: SeattleUse the slight left lane.
13
Merge onto I 5
0.3 mi·19 sec·I 5
14
Keep slight right at fork onto I 5
8.2 mi·10 min·I 5
Use the slight right lane.
15
Take the exit
0.5 mi·1 min
Exit 142AToward WA 18 East: Auburn, Muckleshoot ReservationUse the straight / slight right lanes.
16
Merge onto WA 18
27 mi·34 min·State Route 18
Use the straight / slight right lanes.
17
Continue on WA 18
0.1 mi·8 sec·Snoqualmie Parkway
18
Take the exit
0.6 mi·1 min
Toward I 90 East: Spokane
19
Merge onto I 90
252 mi·4 hr 32 min·I 90
Use the straight / slight right lanes.
20
Merge onto I 90; US 2; US 395
11 mi·14 min·I 90; US 2; US 395
21
Take the exit
0.4 mi·51 sec
Toward WA 27
22
Turn left onto WA 27
148 ft·11 sec·North Pines Road
Use the straight / left lanes.
23
Arrive at destination
WA 27
Trip Plan
Given the 6-hour 52-minute duration, starting your drive in Suquamish in the morning is advisable to ensure you arrive in Spokane Valley with ample daylight. While the drive is manageable in one day, there's no designated stop data, so plan your own breaks strategically, perhaps around the 1-2 hour mark. Keep an eye on your fuel levels, especially during the longest stretch on I 90, as services can be more spread out in certain sections. With a 99% highway share, you’ll maintain good momentum, but always be aware of changing traffic conditions as you approach and leave urban areas.
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 177.4 miles from Suquamish, WA, or about 3h 37m into the drive.
The longest continuous stretch on this route runs about 263.1 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 78 miles or 1h 46m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 177.4 miles or 3h 37m 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 44m
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 Suquamish, 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 Suquamish, WA
This is one driving day of about 354.9 miles and 6h 52m.
Your first comfortable stop window is around 78 miles from Suquamish, 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 263.1 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 16
5 decision points cluster between mile 1.7 and 63 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
1.7 mi into trip|~3m in|WA 305 / State Highway 305 Northeast
Turn right onto WA 305 / State Highway 305 Northeast
Lane positioning matters here
Use the right lane.
6
53.4 mi into trip|~1h 14m in
Keep slight left at fork
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
54.4 mi into trip|~1h 16m in
Keep slight left at fork toward I 5 North: Seattle
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 5 North: Seattle
6
54.8 mi into trip|~1h 17m in|I 5
Keep slight right at fork onto I 5
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
8
63 mi into trip|~1h 27m in
Take the exit toward WA 18 East: Auburn, Muckleshoot Reservation
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 142A
Toward WA 18 East: Auburn, Muckleshoot Reservat...
Fuel & Cost
Regular Gas
$69.14 one way
$138.27 round trip
$4.95/gal25.4 MPG avg124 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.18
$72.43
$144.87
premium
$5.39
$75.33
$150.65
diesel
$4.80
$67.01
$134.02
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$69
Meals
$25–$50
Total
$94–$119
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 124.2 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
106.5
1
$37.26
$17.04
Efficient EV
88.7
1
$31.05
$14.20
EV Truck/SUV
142
1
$49.69
$22.71
Gas CO2
124 kg
EV CO2
42 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
Suquamish, WA
Evening
in Suquamish on Saturday
Local time
7:55 PM
PDT
Current temp
53°F
Mostly Cloudy
S 6 mph1% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 3:08AM PDT by NWS Spokane WA
Special Weather Statement
Special Weather Statement issued July 17 at 2:49AM PDT by NWS Spokane WA
Destination
Spokane Valley, WA
Evening
in Spokane Valley on Saturday
Local time
7:55 PM
PDT
Current temp
63°F
Chance Showers And Thunderstorms
S 3 mph34% chanceLive forecast
Special Weather Statement
Special Weather Statement issued July 17 at 3:08AM PDT by NWS Spokane WA
Special Weather Statement
Special Weather Statement issued July 17 at 2:49AM PDT by NWS Spokane WA
54°F
North Bend, WA
177 mi in
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
10 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 52m 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.
Klondike Gold Rush - Seattle Unit National Historical Park
National Historical Park
Seattle flourished during and after the Klondike Gold Rush. Merchants supplied people from around the world passing through this port city on their way to a remarkable adventure in the Yukon Territory...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is overwhelmingly a highway-focused drive, with 99% of the route utilizing major roads like I 90, State Route 18, and State Highway 16. Expect long stretches of consistent speed, including a significant 263.1-mile segment on I 90. The character of the drive is largely defined by the efficiency of these highways, allowing for steady progress. While the initial part might feel more coastal, the majority of your time will be spent on this interstate system, offering a predictable driving experience.
99% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 263.1 mi on I 90.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on I 90 and State Route 18. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1.7 miles in near WA 305 / State Highway 305 Northeast.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 16 significant decision points across 354.9 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 1.7 miles (WA 305 / State Highway 305 Northeast): Lane positioning matters here; at 53.4 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 54.4 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Hilly terrain with moderate elevation changes
2,507 ft17 ft
Total Climb
4,245 ft
Total Descent
2,297 ft
Highest Point
2,507 ft
~126.7 mi in
Elevation Range
2,490 ft
Notable High Points
2,507 ft at ~126.7 miles+610 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Suquamish, WA to Spokane Valley, WA, road signs begin pointing toward Muckleshoot Reservation along the way.
Suquamish is a community of 4,100 people (2010) on the Kitsap Peninsula in the Puget Sound of Washington state. It is in the Port Madison Indian Reservation, the home of the Suquamish tribe and Chief Seattle.
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 52m. Total distance: 354.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 52m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 263.1 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 24 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 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. There are 24 rest areas along the route for bathroom stops.
The main spots that need attention: at 1.7 miles (WA 305 / State Highway 305 Northeast): Lane positioning matters here; at 53.4 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 54.4 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Klondike Gold Rush - Seattle Unit National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.9 hours each way, a round trip means 13.7 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.
