This 162.4-mile drive from Desert Aire to Federal Way, Washington, will take you about 3 hours and 17 minutes. Primarily utilizing I-90 and State Routes 243 and 18, this trip is a straightforward journey within the Pacific Coast region. Given its manageable duration, it's perfectly suited as a single-day excursion. You can expect a fuel cost of around $34 for this trip. The overall feel is that of a practical highway-focused drive, ideal for getting from point A to point B 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
81.2 miles from Desert Aire, WA
A natural place for your longest stop of the day
, about 1h 39m into the drive
.
Main Roads
Road
Distance
Duration
I 90
112.3 mi
2h 2m
State Route 18
24.2 mi
31m
State Route 243
18.4 mi
27m
South Peasley Canyon Road
1.8 mi
3m
South 320th Street
1.4 mi
3m
WA 26
1 mi
1m
Pacific Highway South
0.5 mi
<1m
Desert Aire Drive Southwest
0.4 mi
1m
Longest stretch:
I 90
— 112.3 mi, about 2h 2m
Turn-by-Turn Driving Directions
Step-by-step road directions between Desert Aire, WA and Federal Way, WA.
1
Start on Apricot Place Southwest
425 ft·19 sec·Apricot Place Southwest
2
Turn right onto Sunshine Circle Southwest
0.3 mi·1 min·Sunshine Circle Southwest
3
At end of road, turn right onto Desert Aire Drive Southwest
0.4 mi·1 min·Desert Aire Drive Southwest
4
Turn left onto WA 243
4.0 mi·6 min·State Route 243
5
Enter roundabout onto WA 243
86 ft·1 sec·State Route 243
Toward Vantage
6
Continue on WA 243
14 mi·21 min·State Route 243
Toward Vantage
7
At end of road, turn left onto WA 26
1.0 mi·1 min·WA 26
8
Continue on this road
0.7 mi·1 min·this road
Toward I 90 West: Seattle
9
Merge onto I 90
112 mi·2 hr 2 min·I 90
Use 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 left at fork
0.1 mi·24 sec
Toward West Valley HighwayUse the straight / right lanes.
17
At end of road, turn left onto West Valley Highway North
0.1 mi·20 sec·West Valley Highway North
Use the straight lane.
18
Turn right onto South Peasley Canyon Road
0.7 mi·1 min·South Peasley Canyon Road
Use the straight / right lanes.
19
Enter roundabout onto South Peasley Canyon Road
67 ft·1 sec·South Peasley Canyon Road
20
Continue on South Peasley Canyon Road
1.0 mi·1 min·South Peasley Canyon Road
Use the left lane.
21
Continue on South 320th Street
1.4 mi·3 min·South 320th Street
22
Turn right onto WA 99
0.5 mi·55 sec·Pacific Highway South
23
Turn right onto South 312th Street
158 ft·5 sec·South 312th Street
Use the right lane.
24
Turn right
24 ft·1 sec
25
Arrive at destination
Trip Plan
To make the most of this 3-hour, 17-minute drive, consider an early morning departure to avoid potential traffic as you approach Federal Way. With only one designated stop recommended, you have ample flexibility to pace yourself. Keep an eye on your fuel levels, especially during the 112.3-mile stretch on I-90, as services might be less frequent than in more populated areas. The relatively short duration means you can easily complete this trip in a single day, making it a convenient option for a quick transition across the state.
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 81.2 miles from Desert Aire, WA, or about 1h 39m into the drive.
The longest continuous stretch on this route runs about 112.3 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 36 miles or 49m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 81.2 miles or 1h 39m 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 36m
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 Desert Aire, 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 Desert Aire, WA
This is one driving day of about 162.4 miles and 3h 17m.
Your first comfortable stop window is around 36 miles from Desert Aire, 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 112.3 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 133 and 158.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
133 mi into trip|~2h 35m 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
133.3 mi into trip|~2h 36m 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,...
7
157.9 mi into trip|~3h 8m in
Take the exit toward WA 167: Renton, Puyallup
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward WA 167: Renton, Puyallup
9
158.1 mi into trip|~3h 8m 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
158.4 mi into trip|~3h 8m 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
$33.99 one way
$67.98 round trip
$5.32/gal25.4 MPG avg57 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$35.64
$71.29
premium
$5.77
$36.88
$73.76
diesel
$5.61
$35.86
$71.71
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$34
Meals
$25–$50
Total
$59–$84
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 56.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $17 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
48.7
0
$17.05
$7.80
Efficient EV
40.6
0
$14.21
$6.50
EV Truck/SUV
65
0
$22.74
$10.39
Gas CO2
57 kg
EV CO2
19 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 15, 2026
Origin
Desert Aire, WA
Afternoon
in Desert Aire on Sunday
Local time
12:37 PM
PDT
Current temp
51°F
Unavailable
Live forecast
Destination
Federal Way, WA
Afternoon
in Federal Way on Sunday
Local time
12:37 PM
PDT
Current temp
45°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
6 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 17m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
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 162.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
With 96% of this route being highway, expect a predominantly fast-paced driving experience. The majority of your time will be spent on I-90, where you'll encounter the longest continuous stretch of 112.3 miles. This highway-focused profile means you'll be covering ground quickly, with State Routes 243 and 18 offering brief variations before you merge back onto the main interstate. The road's personality is geared towards efficient travel rather than winding scenic byways.
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: 112.3 mi on I 90.
How Hard Is This Drive?
8/10
This is a straightforward highway drive that stays mostly on I 90 and State Route 18. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 133 miles in.
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 19 significant decision points across 162.4 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 133 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 133.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 157.9 miles: Exit ramp - move to the correct lane early. 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 Desert Aire, 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 17m. Total distance: 162.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 17m 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 112.3 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 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 133 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 133.3 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 157.9 miles: Exit ramp - move to the correct lane early. 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 3.3 hours each way, an in-and-out day trip would put you behind the wheel for 6.6 hours — manageable with a long break at Federal Way, WA, but most travelers stay overnight.
