Traveling from Port Orchard to Spokane covers 319.4 miles and typically takes about 6 hours and 4 minutes of drive time. You will rely primarily on WA 16, State Route 18, and I-90 to complete this journey. Given the duration, this is manageable as a single-day trip, though you should budget approximately $67 for fuel to reach your destination. Because this route is 98% highway-focused, it functions as a highly efficient transit corridor across the state. Expect a straightforward drive that connects the Pacific Coast region to the eastern side of Washington.
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
159.7 miles from Port Orchard, WA
A natural place for your longest stop of the day
, about 3h 8m into the drive
.
Main Roads
Road
Distance
Duration
I 90
253.5 mi
4h 34m
State Route 18
27.3 mi
34m
WA 16
23.9 mi
30m
I 5
8.5 mi
10m
Sidney Avenue
1.1 mi
2m
Tremont Street West
0.5 mi
1m
Tremont Street
0.4 mi
<1m
South Lincoln Street
0.4 mi
1m
Longest stretch:
I 90
— 253.5 mi, about 4h 34m
Turn-by-Turn Driving Directions
Step-by-step road directions between Port Orchard, WA and Spokane, WA.
1
Start on Sidney Avenue
1.1 mi·2 min·Sidney Avenue
2
Turn right onto Tremont Street
0.4 mi·57 sec·Tremont Street
3
Enter roundabout onto Tremont Street West
140 ft·2 sec·Tremont Street West
4
Continue on Tremont Street West
0.3 mi·28 sec·Tremont Street West
5
Enter roundabout onto Tremont Street West
138 ft·2 sec·Tremont Street West
6
Continue on Tremont Street West
0.2 mi·26 sec·Tremont Street West
Use the straight lane.
7
Continue on Southwest Old Clifton Road
410 ft·15 sec·Southwest Old Clifton Road
8
Take the ramp
0.5 mi·58 sec
Toward WA 16 East: Tacoma
9
Merge onto WA 16
24 mi·30 min·WA 16
Use the straight / slight right lanes.
10
Keep slight left at fork
1.0 mi·2 min
Use the straight / slight right lanes.
11
Keep slight left at fork
0.1 mi·16 sec
Toward I 5 North: SeattleUse the slight left lane.
12
Merge onto I 5
0.3 mi·19 sec·I 5
13
Keep slight right at fork onto I 5
8.2 mi·10 min·I 5
Use the slight right lane.
14
Take the exit
0.5 mi·1 min
Exit 142AToward WA 18 East: Auburn, Muckleshoot ReservationUse the straight / slight right lanes.
15
Merge onto WA 18
27 mi·34 min·State Route 18
Use the straight / slight right lanes.
16
Continue on WA 18
0.1 mi·8 sec·Snoqualmie Parkway
17
Take the exit
0.6 mi·1 min
Toward I 90 East: Spokane
18
Merge onto I 90
252 mi·4 hr 32 min·I 90
Use the straight / slight right lanes.
19
Merge onto I 90; US 2; US 395
1.8 mi·2 min·I 90; US 2; US 395
20
Take the exit
0.2 mi·31 sec
Toward Maple Street, Lincoln Street, Walnut Street
21
Continue on West 5th Avenue
382 ft·12 sec·West 5th Avenue
22
Turn straight onto West Freeway Avenue
0.2 mi·32 sec·West Freeway Avenue
23
Continue on West 4th Avenue
0.2 mi·31 sec·West 4th Avenue
24
Continue on West 4th Avenue
167 ft·4 sec·West 4th Avenue
25
Continue on South Lincoln Street
0.4 mi·1 min·South Lincoln Street
Use the straight / left lanes.
26
Turn left onto West Main Avenue
0.2 mi·34 sec·West Main Avenue
27
Turn right
26 ft·8 sec
28
Turn left onto South Gorge Trail
157 ft·17 sec·South Gorge Trail
29
Arrive at destination
South Gorge Trail
Trip Plan
To make the most of your 6-hour drive, try to depart early in the morning to keep your travel time predictable. With only one recommended stop planned, use that break strategically to refuel and stretch your legs before tackling the 253.5-mile stretch on I-90. Keep your budget of $67 in mind when planning your refueling intervals, as highway fuel prices can vary. Since this is a highway-heavy route, staying alert during the long, repetitive interstate segments is the most important factor for a safe arrival. Embracing the flexibility of a one-day trip allows you to reach Spokane without the need for an overnight stay.
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 159.7 miles from Port Orchard, WA, or about 3h 8m into the drive.
The longest continuous stretch on this route runs about 253.5 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 70 miles or 1h 31m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 159.7 miles or 3h 8m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 59m
Traffic, exits, and arrival timing usually matter more near Spokane, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Port Orchard, 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 Port Orchard, WA
This is one driving day of about 319.4 miles and 6h 4m.
Your first comfortable stop window is around 70 miles from Port Orchard, 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 253.5 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 19
5 decision points cluster between mile 1.9 and 36.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
1.9 mi into trip|~3m in|Tremont Street West
Enter roundabout onto Tremont Street West
Roundabout - know your exit number before entering
6
26.5 mi into trip|~35m in
Keep slight left at fork
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
27.5 mi into trip|~37m 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
27.9 mi into trip|~37m 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
36.1 mi into trip|~48m 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
$66.85 one way
$133.70 round trip
$5.32/gal25.4 MPG avg112 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$70.10
$140.21
premium
$5.77
$72.53
$145.06
diesel
$5.61
$70.52
$141.04
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$67
Meals
$25–$50
Total
$92–$117
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 111.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $34 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
95.8
1
$33.54
$15.33
Efficient EV
79.9
0
$27.95
$12.78
EV Truck/SUV
127.8
1
$44.72
$20.44
Gas CO2
112 kg
EV CO2
37 kg (67% 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 Apr 14, 2026
Origin
Port Orchard, WA
Afternoon
in Port Orchard on Sunday
Local time
1:22 PM
PDT
Current temp
43°F
Chance Light Rain
SSW 9 mph33% chanceLive forecast
Winter Storm Warning
Winter Storm Warning issued April 14 at 12:10AM PDT until April 16 at 5:00AM PDT by NWS Portland OR
Winter Storm Warning
Winter Storm Warning issued April 13 at 11:34PM PDT until April 15 at 5:00AM PDT by NWS Spokane WA
Destination
Spokane, WA
Afternoon
in Spokane on Sunday
Local time
1:22 PM
PDT
Current temp
38°F
Partly Cloudy
S 10 mph4% chanceLive forecast
Winter Storm Warning
Winter Storm Warning issued April 14 at 12:10AM PDT until April 16 at 5:00AM PDT by NWS Portland OR
Winter Storm Warning
Winter Storm Warning issued April 13 at 11:34PM PDT until April 15 at 5:00AM PDT by NWS Spokane WA
59°F
Monroe, WA
160 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
5 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
6h 4m 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?
Expect a trip defined by high-speed efficiency, as the route is comprised of 98% highway driving. You will spend the vast majority of your time on I-90, which features a long, uninterrupted stretch of 253.5 miles. While WA 16 and State Route 18 serve as the initial connectors, the character of the drive quickly shifts into a sustained interstate experience. Be prepared for a consistent pace behind the wheel that prioritizes speed and directness over technical, winding backroads. The experience remains largely uniform as you transition from the coastal region toward the eastern interior.
98% highway — fuel and pacing are the main things to plan.
29 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 253.5 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 1.9 miles in near Tremont Street West.
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 19 significant decision points across 319.4 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 1.9 miles (Tremont Street West): Roundabout - know your exit number before entering; at 26.5 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 27.5 miles: Highway fork - watch signs carefully. Lane positioning matters here.
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 Port Orchard, WA to Spokane, WA, road signs begin pointing toward Muckleshoot Reservation along the way.
Port Orchard is on the Kitsap Peninsula in the Puget Sound of Washington state. Its downtown core has kept its original small-town character and is accessible by foot from the harbor. The waterfront offers commanding views of the Sinclair Inlet and nearby Bremerton with its historic naval shipyard.
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 4m. Total distance: 319.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 4m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 253.5 miles on I 90. 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, 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 1.9 miles (Tremont Street West): Roundabout - know your exit number before entering; at 26.5 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 27.5 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 6.1 hours each way, a round trip means 12.1 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Spokane, WA before the return drive.
