Pasco to Spanaway is 249.9 miles and takes about 4h 50m via US 97, US 12, and I 82, with a fuel budget near $53 and enough daylight to finish in a day. This trip stays within Washington, traveling from the Pacific Coast region to the Pacific Coast region. Given that it's a mostly highway route, you can expect a straightforward drive with minimal detours. It's a practical option for a single-day trip, covering nearly 250 miles with a relatively short estimated driving time.
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
125 miles from Pasco, WA
A natural place for your longest stop of the day
, about 2h 18m into the drive
.
Main Roads
Road
Distance
Duration
US 97
85.7 mi
1h 35m
US 12
70.9 mi
1h 17m
I 82
31 mi
33m
State Route 18
24.2 mi
31m
I 182
11.8 mi
12m
WA 161
9.1 mi
11m
Valley Freeway
7.9 mi
9m
Pacific Avenue South
3.9 mi
8m
Longest stretch:
US 97
— 85.7 mi, about 1h 35m
Traffic on I-90
Hour-of-day weekday pattern from 27 FHWA count stations on your route.
Peak
1 PM
~1,339 veh/hr typical
· worst 2,355
Quietest
2 AM
~108 veh/hr
Peak-to-quiet ratio
12.4×
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 Pasco, WA and Spanaway, WA.
1
Start on North 8th Avenue
0.1 mi·32 sec·North 8th Avenue
2
At end of road, turn right onto West Court Street
0.3 mi·44 sec·West Court Street
3
Turn left onto North 4th Avenue
0.6 mi·1 min·North 4th Avenue
4
Take the ramp
0.4 mi·47 sec
5
Merge onto I 182; US 12; US 395
1.3 mi·1 min·Lewis and Clark Trail
6
Keep slight left at fork onto I 182; US 12
12 mi·12 min·I 182; US 12
Toward I 182, US 12Use the straight lane.
7
Keep slight right at fork onto US 12
71 mi·1 hr 17 min·US 12
Toward I 82 West, US 12 West: Prosser, Yakima
8
Continue on I 82; US 97
31 mi·33 min·I 82; US 97
9
Keep slight left at fork onto US 97
86 mi·1 hr 35 min·US 97
Toward I 90 WestUse the straight / slight right lanes.
10
Take the exit
0.2 mi·30 sec
Exit 25Toward WA 18 West: AuburnUse the slight right lane.
11
Keep slight left at fork
448 ft·13 sec
Toward SR 18 west, Snoqualmie Parkway: Auburn, TacomaUse the straight / left / right lanes.
12
Merge onto WA 18
0.3 mi·25 sec·Snoqualmie Parkway
13
Continue on WA 18
24 mi·31 min·State Route 18
Use the straight / slight right lanes.
14
Take the exit
0.2 mi·19 sec
Toward WA 167: Renton, PuyallupUse the slight right lane.
15
Keep slight left at fork
0.3 mi·26 sec
Toward WA 167 South: Puyallup, West Valley HighwayUse the straight / slight right lanes.
16
Keep slight right at fork
0.2 mi·24 sec
Toward WA 167 South: PuyallupUse the straight / right lanes.
17
Merge onto WA 167
7.9 mi·9 min·Valley Freeway
Use the straight / slight right lanes.
18
Take the exit
0.9 mi·1 min
Toward WA 512 West, WA 161 South: Puyallup, OlympiaUse the straight / slight right lanes.
19
Continue on WA 161; WA 512
9.1 mi·11 min·WA 161; WA 512
Use the straight / slight right lanes.
20
Take the exit
0.2 mi·32 sec
Toward WA 7: Parkland, Spanaway, Pacific AvenueUse the straight / slight right lanes.
21
Turn left onto 108th Street South
0.1 mi·18 sec·108th Street South
22
Turn left onto WA 7
3.9 mi·8 min·Pacific Avenue South
23
Continue on WA 7
171 ft·5 sec·Pacific Avenue South
24
Turn right
53 ft·3 sec
25
Arrive at destination
Trip Plan
For this 4h 50m drive, leaving in the morning is ideal to maximize daylight and allow for any unexpected delays. With only one recommended stop, you can be quite flexible with your timing. Keep an eye on your fuel gauge, especially during the 85.7-mile stretch on US 97, as services can be more spread out in some sections. The relatively short duration means you can easily make this a same-day trip without feeling rushed.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 125 miles from Pasco, WA, or about 2h 18m into the drive.
The longest continuous stretch on this route runs about 85.7 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 55 miles or 1h 2m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 125 miles or 2h 18m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 48m
Traffic, exits, and arrival timing usually matter more near Spanaway, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Pasco, 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 Pasco, WA
This is one driving day of about 249.9 miles and 4h 50m.
Your first comfortable stop window is around 55 miles from Pasco, 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 US 97 for about 85.7 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 2.7 and 227.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
2.7 mi into trip|~5m in|I 182; US 12
Keep slight left at fork onto I 182; US 12 toward I 182, US 12
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Toward I 182, US 12
7
116.4 mi into trip|~2h 8m in|US 97
Keep slight left at fork onto US 97 toward I 90 West
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 90 West
9
202.4 mi into trip|~3h 44m in
Keep slight left at fork toward SR 18 west, Snoqualmie Parkway: Auburn, Tacoma
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / left / right lanes.
Toward SR 18 west, Snoqualmie Parkway: Auburn,...
9
227.3 mi into trip|~4h 16m in
Keep slight left at fork toward WA 167 South: Puyallup, West Valley Highway
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward WA 167 South: Puyallup, West Valley High...
8
227.5 mi into trip|~4h 17m in
Keep slight right at fork toward WA 167 South: Puyallup
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / right lanes.
Toward WA 167 South: Puyallup
Fuel & Cost
Regular Gas
$55.37 one way
$110.74 round trip
$5.63/gal25.4 MPG avg87 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.91
$58.10
$116.19
premium
$6.08
$59.82
$119.64
diesel
$5.35
$52.64
$105.27
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$55
Meals
$25–$50
Total
$80–$105
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 87.4 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $26 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
75
0
$26.24
$12.00
Efficient EV
62.5
0
$21.87
$10.00
EV Truck/SUV
100
1
$34.99
$15.99
Gas CO2
87 kg
EV CO2
29 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 2, 2026
Origin
Pasco, WA
Afternoon
in Pasco on Wednesday
Local time
2:07 PM
PDT
Current temp
85°F
Sunny
N 6 mph1% chanceLive forecast
Flood Warning
Flood Warning issued June 1 at 12:21PM PDT by NWS Spokane WA
Destination
Spanaway, WA
Afternoon
in Spanaway on Wednesday
Local time
2:07 PM
PDT
Current temp
87°F
Sunny
NNW 0 to 3 mph0% chanceLive forecast
Flood Warning
Flood Warning issued June 1 at 12:21PM 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 warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 50m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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 215.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is 96% highway, so you'll spend most of your time on high-speed roads. The longest continuous stretch you'll encounter is 85.7 miles on US 97. You'll transition from US 97 to US 12 and then to I 82. Expect to encounter typical highway conditions, including merging traffic and multiple exits in populated areas as you approach your destination.
96% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 85.7 mi on US 97.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on US 97 and US 12. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2.7 miles in near I 182; US 12.
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 19 significant decision points across 249.9 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 2.7 miles (I 182; US 12): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 116.4 miles (US 97): Highway fork - watch signs carefully. Lane positioning matters here; at 202.4 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Hilly terrain with moderate elevation changes
2,648 ft63 ft
Total Climb
3,465 ft
Total Descent
3,479 ft
Highest Point
2,648 ft
~160.7 mi in
Elevation Range
2,585 ft
Notable High Points
2,449 ft at ~107.1 miles+852 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Pasco, WA and Spanaway, WA, road signs point toward Yakima, Snoqualmie Parkway: Auburn, Tacoma, Puyallup, Valley Highway and Olympia.
Pasco is a city in the Columbia River Plateau in Washington State, roughly between the Yakima and Snake Rivers on the north bank of the Columbia.
Pasco is one of the Tri-Cities of Washington, which also includes Kennewick and Richland. The Tri-Cities are the third most populous metropolitan area in the state, after Seattle-Tacoma and Spokane.
The South Sound refers to the area along the far reaches of the Puget Sound in Washington State. It consists of Pierce County and Thurston County, which includes the state capital of Olympia and the major port city of Tacoma.
Doable as a same-day drive at 4h 50m. Total distance: 249.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 50m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (96%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 85.7 miles on US 97. The full list of main roads is in the Roads section above.
Yes — we found about 15 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 Spanaway, 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 15 rest areas along the route for bathroom stops.
The main spots that need attention: at 2.7 miles (I 182; US 12): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 116.4 miles (US 97): Highway fork - watch signs carefully. Lane positioning matters here; at 202.4 miles: Highway fork - watch signs carefully. 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.
Possible but tiring. At 4.8 hours each way, an in-and-out day trip would put you behind the wheel for 9.7 hours — manageable with a long break at Spanaway, WA, but most travelers stay overnight.
