Spokane Valley, WA to Big Lake, WA is 348.1 miles and takes about 6h 35m via I 90, I 5, and I 405, with a fuel budget near $73 and enough daylight to finish in a day. This drive sticks to major interstates for the vast majority of its 348.1 miles, making it a straightforward journey across Washington State. You'll generally be moving west, traversing the Pacific Coast region from start to finish. Given its highway-focused profile and single-day recommendation, this route is best suited for those prioritizing efficient travel over extensive sightseeing.
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
174.1 miles from Spokane Valley, WA
A natural place for your longest stop of the day
, about 3h 11m into the drive
.
Main Roads
Road
Distance
Duration
I 90
267.6 mi
4h 50m
I 5
43.4 mi
51m
I 405
18.4 mi
23m
Spokane Valley Freeway
11.3 mi
14m
East Division Street
2.4 mi
5m
State Route 9
1.5 mi
2m
Mount Vernon Big Lake Road
0.7 mi
1m
Broad Street
0.5 mi
1m
Longest stretch:
I 90
— 267.6 mi, about 4h 50m
Traffic on I-90
Hour-of-day weekday pattern from 99 FHWA count stations on your route.
Peak
3 PM
~2,111 veh/hr typical
· worst 2,743
Quietest
2 AM
~121 veh/hr
Peak-to-quiet ratio
17.4×
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 Spokane Valley, WA and Big Lake, WA.
1
Start on WA 27
0.2 mi·27 sec·North Pines Road
Use the left lane.
2
Turn left onto East Montgomery Avenue
155 ft·6 sec·East Montgomery Avenue
Use the left lane.
3
Take the ramp
0.3 mi·42 sec
4
Merge onto I 90
11 mi·14 min·Spokane Valley Freeway
5
Keep slight left at fork onto I 90; US 395
57 mi·1 hr·I 90; US 395
6
Keep slight left at fork onto I 90
211 mi·3 hr 50 min·I 90
Use the straight / slight right lanes.
7
Take the exit
0.2 mi·27 sec
Exit 10Toward I 405: Renton, EverettUse the straight / slight right lanes.
8
Keep slight right at fork
0.5 mi·59 sec
Toward I 405 North: Everett, BellevueUse the slight right lane.
9
Merge onto I 405
8.1 mi·10 min·I 405
Use the straight / slight right lanes.
10
Keep slight right at fork onto I 405
8.4 mi·10 min·I 405
Use the straight / slight right lanes.
11
Keep slight right at fork onto I 405
1.9 mi·2 min·I 405
12
Take the exit
0.5 mi·48 sec
Toward I 5 North: Everett, Vancouver British ColumbiaUse the straight / slight right lanes.
13
Merge onto I 5
43 mi·51 min·I 5
Use the straight / slight right lanes.
14
Take the exit
0.2 mi·24 sec
Toward WA 536 West: Kincaid Street
15
Turn sharp right onto Broad Street
0.5 mi·1 min·Broad Street
16
Turn left onto South 15th Street
0.4 mi·58 sec·South 15th Street
17
Turn right onto East Division Street
1.6 mi·4 min·East Division Street
18
Enter roundabout onto East Division Street
76 ft·2 sec·East Division Street
19
Continue on East Division Street
0.8 mi·1 min·East Division Street
20
Continue on Mount Vernon Big Lake Road
0.7 mi·1 min·Mount Vernon Big Lake Road
21
At end of road, turn right onto WA 9
1.5 mi·2 min·State Route 9
22
Arrive at destination
WA 9
Trip Plan
With a recommended one-day duration, starting your drive from Spokane Valley in the morning will allow ample time to reach Big Lake. The 348.1-mile trip is manageable within daylight hours, but be mindful of the longest stretch of 267.6 miles on I 90 where opportunities for services might be less frequent. Plan your fuel stops accordingly, especially before embarking on that extended segment. The $73 fuel cost is an estimate, so keeping an eye on your gauge is always wise. The route is primarily interstate, so be prepared for typical highway traffic, particularly as you approach and navigate around the greater Seattle area via I 5 and I 405.
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 174.1 miles from Spokane Valley, WA, or about 3h 11m into the drive.
The longest continuous stretch on this route runs about 267.6 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 25m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 174.1 miles or 3h 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 5h 17m
Traffic, exits, and arrival timing usually matter more near Big Lake, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Spokane Valley, 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 Spokane Valley, WA
This is one driving day of about 348.1 miles and 6h 35m.
Your first comfortable stop window is around 77 miles from Spokane Valley, 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 267.6 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 17
5 decision points cluster between mile 0.2 and 298.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
0.2 mi into trip|~0m in|East Montgomery Avenue
Turn left onto East Montgomery Avenue
Lane positioning matters here
Use the left lane.
6
68.4 mi into trip|~1h 16m in|I 90
Keep slight left at fork onto I 90
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
279.4 mi into trip|~5h 6m in
Take the exit toward I 405: Renton, Everett
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 10
Toward I 405: Renton, Everett
8
279.6 mi into trip|~5h 6m in
Keep slight right at fork toward I 405 North: Everett, Bellevue
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 405 North: Everett, Bellevue
7
298.5 mi into trip|~5h 30m in
Take the exit toward I 5 North: Everett, Vancouver British Columbia
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 I 5 North: Everett, Vancouver British Co...
Fuel & Cost
Regular Gas
$77.13 one way
$154.26 round trip
$5.63/gal25.4 MPG avg122 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.91
$80.93
$161.85
premium
$6.08
$83.32
$166.65
diesel
$5.35
$73.32
$146.64
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$77
Meals
$25–$50
Total
$102–$127
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, 2026-06-01.
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 Jun 1, 2026
Origin
Spokane Valley, WA
Afternoon
in Spokane Valley on Wednesday
Local time
1:08 PM
PDT
Current temp
48°F
Mostly Cloudy
E 1 mph5% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 8:44AM PDT by NWS Spokane WA
Destination
Big Lake, WA
Afternoon
in Big Lake on Wednesday
Local time
1:08 PM
PDT
Current temp
46°F
Clear
WNW 1 mph0% chanceLive forecast
Flood Warning
Flood Warning issued May 31 at 8:44AM 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
2 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 35m 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...
10 mi from route
~25 min detour
Free
near mile 288.1
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This is a highway-focused drive, with 98% of the route utilizing major interstates. You'll experience mostly high-speed travel, particularly during the longest stretch of 267.6 miles on I 90. While the majority of the journey involves familiar interstate driving, the transition onto I 5 and then I 405 will introduce you to different traffic patterns and road configurations as you approach the Seattle metropolitan area. Expect consistent mileage and minimal deviations from the fast lane for most of the 6h 35m trip.
98% highway — fuel and pacing are the main things to plan.
22 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 267.6 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 0.2 miles in near East Montgomery Avenue.
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 17 significant decision points across 348.1 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 0.2 miles (East Montgomery Avenue): Lane positioning matters here; at 68.4 miles (I 90): Highway fork - watch signs carefully. Lane positioning matters here; at 279.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
2,545 ft61 ft
Total Climb
2,044 ft
Total Descent
3,958 ft
Highest Point
2,545 ft
~223.8 mi in
Elevation Range
2,484 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Spokane Valley, WA and Big Lake, WA, road signs point toward Everett, Bellevue and Vancouver British Columbia.
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 35m. Total distance: 348.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 35m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 267.6 miles on I 90. The full list of main roads is in the Roads section above.
Yes — we found about 25 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 Big Lake, 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 25 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.2 miles (East Montgomery Avenue): Lane positioning matters here; at 68.4 miles (I 90): Highway fork - watch signs carefully. Lane positioning matters here; at 279.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
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 6.6 hours each way, a round trip means 13.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Big Lake, WA before the return drive.
