Traveling from Federal Way to Sunnyside covers 181.7 miles and typically takes about 3 hours and 33 minutes. This highway-focused route utilizes I-90, US-97, and I-82 to connect the two locations efficiently. Because the journey is manageable in a single day, you can easily complete it without needing an overnight stay. Expect to spend approximately $38 on fuel for the trip, making it a budget-friendly option for your schedule. Since both cities are located within Washington, the transition between them is straightforward and familiar for regional travelers. This route is an ideal choice if you prioritize a direct path over a leisurely, winding pace.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
90.9 miles from Federal Way, WA
A natural place for your longest stop of the day
, about 1h 49m into the drive
.
Main Roads
Road
Distance
Duration
I 90
84.5 mi
1h 33m
US 97
37.8 mi
42m
I 82
25.8 mi
27m
State Route 18
24.4 mi
31m
Yakima Valley Highway
2.5 mi
4m
South Peasley Canyon Road
1.8 mi
3m
South 320th Street
1.4 mi
3m
Pacific Highway South
0.5 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 Sunnyside, 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
26 mi·27 min·I 82; US 12
17
Take the exit
0.3 mi·46 sec
Toward Sunnyside, Yakima Valley Highway
18
Turn left onto West Sunnyside Road
0.3 mi·30 sec·West Sunnyside Road
19
At end of road, turn right onto Yakima Valley Highway
2.5 mi·4 min·Yakima Valley Highway
20
Turn right onto Homer Street
0.2 mi·30 sec·Homer Street
21
Turn right onto North 1st Street
0.2 mi·34 sec·North 1st Street
22
Continue on Zillah Avenue
0.2 mi·29 sec·Zillah Avenue
23
Continue on East Edison Avenue
0.4 mi·1 min·East Edison Avenue
24
Turn sharp right onto South 9th Street
17 ft·0 sec·South 9th Street
25
Arrive at destination
South 9th Street
Trip Plan
To keep your drive smooth, plan for at least one stop to break up the 3-hour and 33-minute duration. Leaving early in the day is your best bet to avoid potential congestion on the busiest interstate sections. Keep a close eye on your fuel gauge before starting the 84.5-mile stretch on I-90, as this is your longest period away from services. Since this is a one-day trip, your schedule offers plenty of flexibility for when you choose to take your break. Use your single planned stop to stretch your legs and refuel, ensuring you remain alert for the final leg of the journey into Sunnyside.
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 90.9 miles from Federal Way, WA, or about 1h 49m 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 40 miles or 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 90.9 miles or 1h 49m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 54m
Traffic, exits, and arrival timing usually matter more near Sunnyside, 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 181.7 miles and 3h 33m.
Your first comfortable stop window is around 40 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 113.9 — 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
5
3.7 mi into trip|~7m in|West Valley Highway North
Turn left onto West Valley Highway North
Lane positioning matters here
Use the left lane.
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
Fuel & Cost
Regular Gas
$38.03 one way
$76.06 round trip
$5.32/gal25.4 MPG avg64 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$39.88
$79.76
premium
$5.77
$41.26
$82.52
diesel
$5.61
$40.12
$80.23
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$38
Meals
$25–$50
Total
$63–$88
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 63.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $19 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
54.5
0
$19.08
$8.72
Efficient EV
45.4
0
$15.90
$7.27
EV Truck/SUV
72.7
0
$25.44
$11.63
Gas CO2
64 kg
EV CO2
21 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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
Federal Way, WA
Evening
in Federal Way on Saturday
Local time
7:52 PM
PDT
Current temp
43°F
Chance Light Rain
SSW 9 mph39% chanceLive forecast
Winter Weather Advisory
Winter Weather Advisory issued April 13 at 9:47PM PDT until April 15 at 11:00PM PDT by NWS Pendleton OR
Flood Warning
Flood Warning issued April 13 at 8:55PM PDT until April 14 at 7:06PM PDT by NWS Spokane WA
Destination
Sunnyside, WA
Evening
in Sunnyside on Saturday
Local time
7:52 PM
PDT
Current temp
46°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
3 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
3h 33m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
With a high highway share of 95%, you will spend the vast majority of your time cruising on major thoroughfares. The road feels like a classic interstate drive, characterized by efficient, fast-paced segments rather than technical local curves. You should prepare for the longest uninterrupted stretch of 84.5 miles while navigating I-90. As you transition between the primary highways, the rhythm of the drive shifts from high-speed interstate travel to the specific flow of US-97 and I-82. It is a functional, no-nonsense route that emphasizes getting you to your destination with minimal fuss.
95% 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: 84.5 mi on I 90.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 90 and US 97. 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 Effort8/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 17 significant decision points across 181.7 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 3.7 miles (West Valley Highway North): Lane positioning matters here; at 3.8 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
2,485 ft385 ft
Total Climb
2,830 ft
Total Descent
2,548 ft
Highest Point
2,485 ft
~64.9 mi in
Elevation Range
2,100 ft
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 33m. Total distance: 181.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 33m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (95%). 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 Sunnyside, 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 3.7 miles (West Valley Highway North): Lane positioning matters here; at 3.8 miles: Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 3.6 hours each way, an in-and-out day trip would put you behind the wheel for 7.1 hours — manageable with a long break at Sunnyside, WA, but most travelers stay overnight.
