This 196-mile drive from Prosser, WA, to Federal Way, WA, is easily manageable as a single-day trip, taking an estimated 3 hours and 47 minutes. With 96% of the journey on highways, you'll find this to be a straightforward, highway-focused experience. The estimated fuel cost for this route is around $41, making it a budget-friendly option for a quick transit between the Pacific Coast regions. The drive is primarily on US 97 and I-82 before transitioning to State Route 18, offering a practical way to cover the distance efficiently.
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
98 miles from Prosser, WA
A natural place for your longest stop of the day
, about 1h 50m into the drive
.
Main Roads
Road
Distance
Duration
US 97
85.7 mi
1h 35m
I 82
78.8 mi
1h 25m
State Route 18
24.2 mi
31m
South Peasley Canyon Road
1.8 mi
3m
South 320th Street
1.4 mi
3m
Wine Country Road
1.2 mi
2m
Pacific Highway South
0.5 mi
<1m
Snoqualmie Parkway
0.3 mi
<1m
Longest stretch:
US 97
— 85.7 mi, about 1h 35m
Turn-by-Turn Driving Directions
Step-by-step road directions between Prosser, WA and Federal Way, WA.
1
Start on Bennett Avenue
71 ft·6 sec·Bennett Avenue
2
Turn right onto 7th Street
0.2 mi·36 sec·7th Street
3
Turn left onto Wine Country Road
1.2 mi·2 min·Wine Country Road
4
Continue on Gap Road
0.2 mi·38 sec·Gap Road
5
Take the ramp
0.4 mi·52 sec
6
Merge onto I 82; US 12
48 mi·52 min·I 82; US 12
7
Continue on I 82; US 97
31 mi·33 min·I 82; US 97
8
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.
9
Take the exit
0.2 mi·30 sec
Exit 25Toward WA 18 West: AuburnUse the slight right lane.
10
Keep slight left at fork
448 ft·13 sec
Toward SR 18 west, Snoqualmie Parkway: Auburn, TacomaUse the straight / left / right lanes.
11
Merge onto WA 18
0.3 mi·25 sec·Snoqualmie Parkway
12
Continue on WA 18
24 mi·31 min·State Route 18
Use the straight / slight right lanes.
13
Take the exit
0.2 mi·19 sec
Toward WA 167: Renton, PuyallupUse the slight right lane.
14
Keep slight left at fork
0.3 mi·26 sec
Toward WA 167 South: Puyallup, West Valley HighwayUse the straight / slight right lanes.
15
Keep slight left at fork
0.1 mi·24 sec
Toward West Valley HighwayUse the straight / right lanes.
16
At end of road, turn left onto West Valley Highway North
0.1 mi·20 sec·West Valley Highway North
Use the straight lane.
17
Turn right onto South Peasley Canyon Road
0.7 mi·1 min·South Peasley Canyon Road
Use the straight / right lanes.
18
Enter roundabout onto South Peasley Canyon Road
67 ft·1 sec·South Peasley Canyon Road
19
Continue on South Peasley Canyon Road
1.0 mi·1 min·South Peasley Canyon Road
Use the left lane.
20
Continue on South 320th Street
1.4 mi·3 min·South 320th Street
21
Turn right onto WA 99
0.5 mi·55 sec·Pacific Highway South
22
Turn right onto South 312th Street
158 ft·5 sec·South 312th Street
Use the right lane.
23
Turn right
24 ft·1 sec
24
Arrive at destination
Trip Plan
Given the relatively short duration of under four hours, this drive is perfectly suited for a single day. You can depart anytime that suits your schedule, but an early start will allow for a relaxed pace with the flexibility to make a single stop if needed. Keep an eye on your fuel gauge, especially during the 85.7-mile stretch on US 97, as services might be less frequent in certain sections. Budgeting approximately $41 for fuel covers the estimated cost for this 196-mile journey.
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 98 miles from Prosser, WA, or about 1h 50m 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 43 miles or 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 98 miles or 1h 50m 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
Traffic, exits, and arrival timing usually matter more near Federal Way, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Prosser, 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 Prosser, WA
This is one driving day of about 196 miles and 3h 47m.
Your first comfortable stop window is around 43 miles from Prosser, 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 18
5 decision points cluster between mile 80.9 and 192 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
80.9 mi into trip|~1h 31m 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
7
166.7 mi into trip|~3h 6m in
Take the exit toward WA 18 West: Auburn
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Exit 25
Toward WA 18 West: Auburn
9
166.9 mi into trip|~3h 7m 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
191.7 mi into trip|~3h 39m 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
192 mi into trip|~3h 39m in
Keep slight left at fork toward West Valley Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / right lanes.
Toward West Valley Highway
Fuel & Cost
Regular Gas
$41.02 one way
$82.04 round trip
$5.32/gal25.4 MPG avg69 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$43.02
$86.04
premium
$5.77
$44.51
$89.02
diesel
$5.61
$43.27
$86.55
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$41
Meals
$25–$50
Total
$66–$91
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 68.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $21 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
58.8
0
$20.58
$9.41
Efficient EV
49
0
$17.15
$7.84
EV Truck/SUV
78.4
0
$27.44
$12.54
Gas CO2
69 kg
EV CO2
23 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 16, 2026
Origin
Prosser, WA
Late night
in Prosser on Sunday
Local time
3:28 AM
PDT
Current temp
47°F
Unavailable
Live forecast
Destination
Federal Way, WA
Late night
in Federal Way on Sunday
Local time
3:28 AM
PDT
Current temp
56°F
Sunny
SW 6 mph2% chanceLive forecast
Freeze Warning
Freeze Warning issued April 16 at 6:46AM PDT until April 17 at 9:00AM PDT by NWS Pendleton OR
Freeze Warning
Freeze Warning issued April 16 at 6:46AM PDT until April 17 at 9:00AM PDT by NWS Pendleton OR
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 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 47m 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.
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
~48 min detour
Free
near mile 196
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a predominantly highway-focused drive for this trip, with 96% of the 196 miles on major roadways. The longest uninterrupted stretch you'll encounter is 85.7 miles on US 97, offering a good opportunity to settle into a rhythm. The route's character is defined by its efficient, high-speed travel, transitioning from US 97 and I-82 to State Route 18. This profile suggests a drive that prioritizes covering ground over leisurely sightseeing.
96% 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: 85.7 mi on US 97.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on US 97 and I 82. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 80.9 miles in near US 97.
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 18 significant decision points across 196 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 80.9 miles (US 97): Highway fork - watch signs carefully. Lane positioning matters here; at 166.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 166.9 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Prosser, WA and Federal Way, WA, road signs point toward Snoqualmie Parkway: Auburn and Tacoma.
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 3h 47m. Total distance: 196 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 47m 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.
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 Federal Way, 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: at 80.9 miles (US 97): Highway fork - watch signs carefully. Lane positioning matters here; at 166.7 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 166.9 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 3.8 hours each way, an in-and-out day trip would put you behind the wheel for 7.6 hours — manageable with a long break at Federal Way, WA, but most travelers stay overnight.
