Origin
Fern Prairie, WA
Night in Fern Prairie on Saturday
Local time
9:47 PM
PDT
Current temp
69°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
3h 4m
Distance
154.1 mi
248 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$32
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Fern Prairie, WA
Tom Fisk
Fern Prairie, WA to Federal Way, WA is 154.1 miles and takes about 3h 4m via I 5, I 205, and Northeast Fourth Plain Boulevard, with a fuel budget near $32 and enough daylight to finish in a day. This drive primarily sticks to major highways, making it a straightforward trip across Washington's Pacific Coast region. You'll spend most of your time on the interstate, so expect a functional rather than a scenic journey. With only one recommended stop and a duration under four hours, this route is ideal for a quick transit, whether you're moving or just need to cover ground 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
77 miles from Fern Prairie, WA
A natural place for your longest stop of the day , about 1h 34m into the drive .
| Road | Distance | Duration |
|---|---|---|
| I 5 | 135.5 mi | 2h 34m |
| I 205 | 6.1 mi | 7m |
| Northeast Fourth Plain Boulevard | 4 mi | 7m |
| Northeast Ingle Road | 1.3 mi | 1m |
| Northeast 28th Street | 1.3 mi | 1m |
| WA 500 | 0.9 mi | 1m |
| South 320th Street | 0.8 mi | 2m |
| Northeast Brunner Road | 0.8 mi | 1m |
Step-by-step road directions between Fern Prairie, WA and Federal Way, WA.
Start on this road
Turn left onto WA 500
Continue on WA 500
Continue on WA 500
Continue on WA 500
Continue on Northeast 28th Street
Continue on Northeast Goodwin Road
Turn right onto Northeast Ingle Road
Continue on Northeast 199th Avenue
At end of road, turn left onto WA 500
Continue on WA 500
Enter roundabout onto WA 500
Continue on WA 500
Turn left onto WA 500
Take the exit
Merge onto I 205
Merge onto I 5
Keep slight right at fork onto I 5
Take the exit
Turn left onto South 320th Street
Turn right onto WA 99
Turn right onto South 312th Street
Turn right
Arrive at destination
Given the 3h 4m duration and 154.1-mile distance, this trip is easily manageable in a single day. Leaving in the morning or mid-afternoon will help you avoid the peak rush hour traffic often found on I 5. Plan your single stop strategically, perhaps around the halfway point, to refuel and stretch your legs. Keep an eye on your fuel gauge, especially during the longest stretch on I 5, as services can sometimes be spaced out. The $32 fuel cost estimate suggests being mindful of gas prices along the way.
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.
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 34 miles or 45m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 77 miles or 1h 34m 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 29m
Traffic, exits, and arrival timing usually matter more near Federal Way, WA than in the middle of the route.
Open the route before leaving Fern Prairie, 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 Fern Prairie, WA
This is one driving day of about 154.1 miles and 3h 4m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
77 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 34 miles helps settle the day before fatigue starts building.
The midpoint is around 77 miles from Fern Prairie, WA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 5 if your tank is already low. That segment runs about 135.5 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 0 and 152.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto WA 500 / Northeast 267th Avenue
Navigation decision point
Take the exit toward I 205 North: Seattle
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight right at fork onto I 5
Highway fork - watch signs carefully. Lane positioning matters here
Take the exit toward Federal Way, South 320th Street
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Turn left onto South 320th Street
Lane positioning matters here
Regular Gas
$32.25 one way
$64.50 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $5.58 | $33.82 | $67.65 |
| premium | $5.77 | $34.99 | $69.99 |
| diesel | $5.61 | $34.02 | $68.05 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$32
Meals
$25–$50
Total
$57–$82
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 53.9 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $16 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 46.2 | 0 | $16.18 | $7.40 |
| Efficient EV | 38.5 | 0 | $13.48 | $6.16 |
| EV Truck/SUV | 61.6 | 0 | $21.57 | $9.86 |
Gas CO2
54 kg
EV CO2
18 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.
Current conditions at both ends of the drive.
Origin
Night in Fern Prairie on Saturday
Local time
9:47 PM
PDT
Current temp
69°F
Unavailable
Destination
Night in Federal Way on Saturday
Local time
9:47 PM
PDT
Current temp
56°F
Sunny
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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
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.
This is a highway-focused drive, with 93% of the route utilizing major interstates like I 5 and I 205. You'll experience long stretches of consistent speed, including one uninterrupted segment of 135.5 miles on I 5. While the majority of the journey is on fast-paced roads, there's a brief section on Northeast Fourth Plain Boulevard that offers a slight change of pace before merging back into highway travel. Expect a predictable driving experience largely dominated by the efficiency of the interstate system.
This is a straightforward highway drive that stays mostly on I 5 and I 205. You will hit about 14 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near WA 500 / Northeast 267th Avenue.
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 154.1 miles you will encounter 14 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (WA 500 / Northeast 267th Avenue): Navigation decision point; at 10 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 142.3 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here.
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.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 3h 4m. Total distance: 154.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 4m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (93%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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