Westport to Spokane is 388.9 miles and takes about 7h 44m via I-90, I-5, and State Route 18, with a fuel budget near $80 and enough daylight to finish in a day. This route takes you from the Pacific Coast region across much of Washington state, offering a predominantly highway experience for most of the drive. Given its length and highway profile, it's a solid option for a single-day trip if you get an early start. You'll be covering a significant portion of the state, so be prepared for changing scenery as you head east. It's a straightforward drive for those looking to get from the coast to Eastern Washington efficiently.
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
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
194.4 miles from Westport, WA
A natural place for your longest stop of the day
, about 4h 11m into the drive
.
Main Roads
Road
Distance
Duration
I 90
253.5 mi
4h 34m
I 5
37 mi
46m
State Route 18
27.3 mi
34m
WA 8
21.1 mi
26m
Olympic Highway
19.1 mi
25m
State Route 105
15.8 mi
27m
US 101
6 mi
8m
North Montesano Street
2.2 mi
5m
Longest stretch:
I 90
— 253.5 mi, about 4h 34m
Traffic on I-5
Hour-of-day weekday pattern from 220 FHWA count stations on your route.
Peak
4 PM
~5,078 veh/hr typical
Quietest
2 AM
~504 veh/hr
Peak-to-quiet ratio
10.1×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 105 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 Westport, WA and Spokane, WA.
1
Start on North Montesano Street
2.2 mi·5 min·North Montesano Street
2
Turn left onto WA 105
0.8 mi·1 min·State Route 105
3
Continue on WA 105
15 mi·26 min·State Route 105
4
Continue on WA 105
0.5 mi·52 sec·Westport Road
5
Continue on WA 105
1.6 mi·3 min·South Boone Street
6
Merge onto US 101
0.5 mi·1 min·US 101
7
Turn right onto US 12
0.2 mi·34 sec·East Heron Street
Toward US 12 East, Olympia
8
Continue on US 12
474 ft·13 sec·Hornsby Way
9
Turn right onto US 12
1.4 mi·2 min·East Wishkah Street
10
Continue on US 12
19 mi·25 min·Olympic Highway
11
Continue on WA 8
21 mi·26 min·WA 8
12
Merge onto US 101
5.4 mi·7 min·US 101
13
Keep slight left at fork
0.5 mi·52 sec
14
Merge onto I 5
29 mi·36 min·I 5
Use the straight / slight right lanes.
15
Keep slight right at fork onto I 5
8.2 mi·10 min·I 5
Use the slight right lane.
16
Take the exit
0.5 mi·1 min
Exit 142AToward WA 18 East: Auburn, Muckleshoot ReservationUse the straight / slight right lanes.
17
Merge onto WA 18
27 mi·34 min·State Route 18
Use the straight / slight right lanes.
18
Continue on WA 18
0.1 mi·8 sec·Snoqualmie Parkway
19
Take the exit
0.6 mi·1 min
Toward I 90 East: Spokane
20
Merge onto I 90
252 mi·4 hr 32 min·I 90
Use the straight / slight right lanes.
21
Merge onto I 90; US 2; US 395
1.8 mi·2 min·I 90; US 2; US 395
22
Take the exit
0.2 mi·31 sec
Toward Maple Street, Lincoln Street, Walnut Street
23
Continue on West 5th Avenue
382 ft·12 sec·West 5th Avenue
24
Turn straight onto West Freeway Avenue
0.2 mi·32 sec·West Freeway Avenue
25
Continue on West 4th Avenue
0.2 mi·31 sec·West 4th Avenue
26
Continue on West 4th Avenue
167 ft·4 sec·West 4th Avenue
27
Continue on South Lincoln Street
0.4 mi·1 min·South Lincoln Street
Use the straight / left lanes.
28
Turn left onto West Main Avenue
0.2 mi·34 sec·West Main Avenue
29
Turn right
26 ft·8 sec
30
Turn left onto South Gorge Trail
157 ft·17 sec·South Gorge Trail
31
Arrive at destination
South Gorge Trail
Trip Plan
To make the most of this 7-hour drive, aim to depart Westport before 9 AM to ensure you have ample daylight for the entire 388.9-mile trip. With only 2 recommended stops, plan them strategically for fuel and a break. The longest stretch of driving is 253.5 miles on I-90, so consider making a more substantial stop before or after this segment. Your estimated fuel cost is around $80, so factor that into your budget. Keep an eye on your fuel gauge, especially as you get further east on I-90, where services can be more spread out.
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 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 194.4 miles from Westport, WA, or about 4h 11m 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 86 miles or 2h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 194.4 miles or 4h 11m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h 36m
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 Westport, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Westport, WA
This is one driving day of about 388.9 miles and 7h 44m.
Your first comfortable stop window is around 86 miles from Westport, WA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks 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 16
5 decision points cluster between mile 20.7 and 106 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
20.7 mi into trip|~38m in|US 12 / East Heron Street
Turn right onto US 12 / East Heron Street toward US 12 East, Olympia
Multiple destination signs - pick the right one
Toward US 12 East, Olympia
5
68.5 mi into trip|~1h 42m in|I 5
Merge onto I 5
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
97.3 mi into trip|~2h 18m 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
105.5 mi into trip|~2h 28m 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...
5
106 mi into trip|~2h 29m in|WA 18 / State Route 18
Merge onto WA 18 / State Route 18
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Fuel & Cost
Regular Gas
$83.87 one way
$167.75 round trip
$5.48/gal25.4 MPG avg136 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.72
$87.59
$175.19
premium
$5.94
$90.90
$181.80
diesel
$6.18
$94.61
$189.21
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$84
Meals
$25–$50
Total
$109–$134
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 136.1 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $41 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
116.7
1
$40.83
$18.67
Efficient EV
97.2
1
$34.03
$15.56
EV Truck/SUV
155.6
1
$54.45
$24.89
Gas CO2
136 kg
EV CO2
46 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 Oct 18, 2026
Origin
Westport, WA
Late night
in Westport on Monday
Local time
2:50 AM
PDT
Current temp
45°F
Mostly Clear
NNE 7 mph0% chanceLive forecast
Destination
Spokane, WA
Late night
in Spokane on Monday
Local time
2:50 AM
PDT
Current temp
36°F
Areas Of Frost
SW 1 mph0% chanceLive forecast
51°F
North Bend, WA
194 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
9 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
7h 44m 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...
19 mi from route
~49 min detour
Free
near mile 120.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend 93% of this 388.9-mile drive on highways, meaning you'll be on high-speed roads for the majority of your trip. The longest continuous stretch on a highway is 253.5 miles, which occurs on I-90. This indicates a long period of consistent cruising with fewer exits. You'll transition from highway to surface roads at some point, but the bulk of your travel will be on main interstates.
93% highway — fuel and pacing are the main things to plan.
31 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?
9/10
This is a straightforward highway drive that stays mostly on I 90 and I 5. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 20.7 miles in near US 12 / East Heron Street.
Driving Effort9/10
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 388.9 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 20.7 miles (US 12 / East Heron Street): Multiple destination signs - pick the right one; at 68.5 miles (I 5): Merge point - match speed before joining. Lane positioning matters here; at 97.3 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Hilly terrain with moderate elevation changes
2,533 ft12 ft
Total Climb
4,059 ft
Total Descent
2,235 ft
Highest Point
2,533 ft
~168 mi in
Elevation Range
2,521 ft
Notable High Points
2,533 ft at ~168 miles+650 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Westport, WA and Spokane, WA, road signs point toward Olympia and Muckleshoot Reservation.
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.
Top landmarks
•Monroe Street Bridge — bridge in Spokane, Washington
•Montvale Hotel — hotel in Spokane, Washington
•Manito Park and Botanical Gardens — park in Spokane, Washington state, USA
Doable as a same-day drive at 7h 44m. Total distance: 388.9 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 44m 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.
Yes — we found about 23 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, 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 2 meaningful breaks. There are 23 rest areas along the route for bathroom stops.
The main spots that need attention: at 20.7 miles (US 12 / East Heron Street): Multiple destination signs - pick the right one; at 68.5 miles (I 5): Merge point - match speed before joining. Lane positioning matters here; at 97.3 miles (I 5): 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 7.7 hours each way, a round trip means 15.5 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.
