Spanning 228 miles, this trek from Federal Way to West Pasco is a straightforward journey that typically takes about 4 hours and 22 minutes behind the wheel. Because the duration is manageable in a single day, you can easily complete this trip without needing an overnight stay. You should budget approximately $48 for fuel to cover the distance. Navigating primarily via I-90, I-82, and US-97, the route keeps you on major thoroughfares for the vast majority of the time. Whether you are heading east for business or a change of scenery, this highway-focused drive offers a reliable path across the state.
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
114 miles from Federal Way, WA
A natural place for your longest stop of the day
, about 2h 15m into the drive
.
Main Roads
Road
Distance
Duration
I 90
84.5 mi
1h 33m
I 82
64.1 mi
1h 8m
US 97
37.8 mi
42m
State Route 18
24.4 mi
31m
US 12
10 mi
10m
South Peasley Canyon Road
1.8 mi
3m
South 320th Street
1.4 mi
3m
Road 68
1 mi
1m
Longest stretch:
I 90
— 84.5 mi, about 1h 33m
Turn-by-Turn Driving Directions
Step-by-step road directions between Federal Way, WA and West Pasco, WA.
1
Start on this road
24 ft·7 sec·this road
2
Turn left onto South 312th Street
158 ft·5 sec·South 312th Street
3
Turn left onto WA 99
0.5 mi·1 min·Pacific Highway South
4
Turn left onto South 320th Street
1.4 mi·3 min·South 320th Street
Use the straight lane.
5
Continue on South Peasley Canyon Road
1.0 mi·1 min·South Peasley Canyon Road
6
Enter roundabout onto South Peasley Canyon Road
95 ft·1 sec·South Peasley Canyon Road
7
Continue on South Peasley Canyon Road
0.7 mi·1 min·South Peasley Canyon Road
8
Turn left onto West Valley Highway North
334 ft·10 sec·West Valley Highway North
Use the left lane.
9
Take the ramp
0.2 mi·28 sec
Toward WA 18 East, WA 167 North: Renton, North BendUse the right lane.
10
Keep slight left at fork
0.2 mi·30 sec
Toward WA 18 East
11
Merge onto WA 18
24 mi·31 min·State Route 18
Use the straight / slight right lanes.
12
Continue on WA 18
0.1 mi·8 sec·Snoqualmie Parkway
13
Take the exit
0.6 mi·1 min
Toward I 90 East: Spokane
14
Merge onto I 90
85 mi·1 hr 33 min·I 90
Use the straight / slight right lanes.
15
Take the exit onto US 97
38 mi·42 min·US 97
Toward I 82 East, US 97 South: YakimaUse the straight / slight right lanes.
16
Keep slight left at fork onto I 82; US 12
64 mi·1 hr 8 min·I 82; US 12
17
Take the exit onto US 12
10.0 mi·10 min·US 12
Exit 102Toward I‑182 east, US 12 east: Richland, PascoUse the straight / slight right lanes.
18
Take the exit
0.3 mi·41 sec
Exit 9Toward Road 68
19
Keep slight right at fork
0.1 mi·18 sec
Toward Road 68
20
Turn straight onto Road 68
1.0 mi·1 min·Road 68
21
Turn right onto West Wernett Road
0.3 mi·50 sec·West Wernett Road
22
Turn left onto Road 72
0.2 mi·50 sec·Road 72
23
Turn left onto Pearl Street
0.1 mi·48 sec·Pearl Street
24
Arrive at destination
Pearl Street
Trip Plan
To keep your drive stress-free, aim to depart early in the morning to avoid potential congestion on the interstate. With only one recommended stop, you have plenty of flexibility to decide where to pull over for a quick break or fuel top-off. Since you are traveling across a significant distance, keep an eye on your gas gauge despite the $48 estimate, as fuel prices can vary by location. Given that nearly the entire route is highway-based, ensure your vehicle is comfortable for a sustained, steady pace. Planning your single stop around the midpoint can help you stay refreshed for the final stretch into West Pasco.
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 114 miles from Federal Way, WA, or about 2h 15m into the drive.
The longest continuous stretch on this route runs about 84.5 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 50 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 114 miles or 2h 15m 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 35m
Traffic, exits, and arrival timing usually matter more near West Pasco, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Federal Way, 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 Federal Way, WA
This is one driving day of about 228 miles and 4h 22m.
Your first comfortable stop window is around 50 miles from Federal Way, 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 84.5 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 17
5 decision points cluster between mile 0 and 215.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|South 312th Street
Turn left onto South 312th Street
Navigation decision point
8
3.8 mi into trip|~8m in
Take the ramp toward WA 18 East, WA 167 North: Renton, North Bend
Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Toward WA 18 East, WA 167 North: Renton, North...
6
4 mi into trip|~8m in
Keep slight left at fork toward WA 18 East
Highway fork - watch signs carefully
Toward WA 18 East
7
113.9 mi into trip|~2h 14m in|US 97
Take the exit onto US 97 toward I 82 East, US 97 South: Yakima
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 82 East, US 97 South: Yakima
8
215.9 mi into trip|~4h 6m in|US 12
Take the exit onto US 12 toward I‑182 east, US 12 east: Richland, Pasco
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 102
Toward I‑182 east, US 12 east: Richland, Pasco
Fuel & Cost
Regular Gas
$47.72 one way
$95.44 round trip
$5.32/gal25.4 MPG avg80 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$50.04
$100.09
premium
$5.77
$51.78
$103.55
diesel
$5.61
$50.34
$100.68
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$48
Meals
$25–$50
Total
$73–$98
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 79.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $24 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
68.4
0
$23.94
$10.94
Efficient EV
57
0
$19.95
$9.12
EV Truck/SUV
91.2
1
$31.92
$14.59
Gas CO2
80 kg
EV CO2
27 kg (66% 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 Apr 15, 2026
Origin
Federal Way, WA
Night
in Federal Way on Saturday
Local time
9:23 PM
PDT
Current temp
47°F
Unavailable
Live forecast
Destination
West Pasco, WA
Night
in West Pasco on Saturday
Local time
9:23 PM
PDT
Current temp
78°F
Unavailable
Live forecast
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
31 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 22m 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.
More Details
What kind of drive is this?
Expect a trip dominated by high-speed transit, as 97% of your travel takes place on major highways. You will settle into a rhythmic pace, with the longest uninterrupted stretch covering 84.5 miles along I-90. While the drive is efficient, the character of the road shifts as you transition between interstate segments and connecting highways. You will spend most of your time focused on maintaining speed and managing traffic flow rather than navigating technical turns. Overall, the experience is designed for steady progress and minimal deviations from the main route.
97% highway — fuel and pacing are the main things to plan.
24 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 84.5 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 82. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near South 312th 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 17 significant decision points across 228 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: near the start (South 312th Street): Navigation decision point; at 3.8 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 4 miles: Highway fork - watch signs carefully.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Federal Way, WA and West Pasco, WA, road signs point toward I‑182 East and Pasco.
Federal Way is a city in King County on the Puget Sound of Washington State. It is the home of the Pacific Bonsai Museum and Rhododendron Species Botanical Gardens. With a population of 96,000 (2016), Federal Way is one of Seattle's largest suburbs.
Doable as a same-day drive at 4h 22m. Total distance: 228 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 22m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (97%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 84.5 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 West Pasco, 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: near the start (South 312th Street): Navigation decision point; at 3.8 miles: Lane positioning matters here. Multiple destination signs - pick the right one; at 4 miles: Highway fork - watch signs carefully.
Possible but tiring. At 4.4 hours each way, an in-and-out day trip would put you behind the wheel for 8.8 hours — manageable with a long break at West Pasco, WA, but most travelers stay overnight.
