This 285.1-mile drive from Millwood, WA, to Kent, WA, is designed for a single day, taking an estimated 5 hours and 21 minutes. The route primarily utilizes I-90 and State Route 18, with a 97% highway share, making it a focused driving experience. With a projected fuel cost of around $60, this trip is budget-friendly for a day excursion. You'll traverse the Pacific Coast region entirely within Washington state. This route is straightforward and efficient, perfect if you want to cover ground without extensive detours.
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
142.5 miles from Millwood, WA
A natural place for your longest stop of the day
, about 2h 36m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 21m. Total distance: 285.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 21m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (97%). Some complex stretches to watch for.
Drive Character
Expect a highway-focused drive for the most part, with 97% of the journey on major roadways like I-90 and the Spokane Valley Freeway. The longest continuous stretch you'll encounter is 252 miles on I-90, offering a consistent pace. While primarily interstate, the inclusion of State Route 18 introduces a slight variation in the road's character as you progress. This route prioritizes efficient travel over winding scenic byways, keeping you moving steadily towards your destination.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 21 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 90 is the longest continuous segment at about 252 miles.
How Hard Is This Drive?
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 66.9 miles in near I 90.
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 11 significant decision points across 285.1 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 66.9 miles (I 90): Highway fork - watch signs carefully. Lane positioning matters here; at 262.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 262.4 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 11 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
66.9 mi into trip|~1h 14m in|I 90
Keep slight left at fork onto I 90
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
7
262.2 mi into trip|~4h 46m 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
262.4 mi into trip|~4h 47m 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
278.7 mi into trip|~5h 8m in
Take the exit toward WA 516: South East 272nd Street, Covington
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 WA 516: South East 272nd Street, Covingt...
7
284.5 mi into trip|~5h 19m in|East Titus Street
Turn left onto East Titus Street
Lane positioning matters here
Use the left lane.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Millwood, WA and Kent, WA, road signs point toward Snoqualmie Parkway: Auburn and Tacoma.
Snoqualmie Parkway: Auburn
262.4 mi in|~4h 47m
Tacoma
262.4 mi in|~4h 47m
Main Roads
Road
Distance
Duration
I 90
252 mi
4h 32m
State Route 18
15.8 mi
20m
Spokane Valley Freeway
9.3 mi
11m
Southeast 272nd Street
2 mi
3m
Southeast Kent Kangley Road
1.8 mi
3m
Canyon Drive
1 mi
1m
North Argonne Road
0.6 mi
1m
Southeast 256th Street
0.4 mi
<1m
Longest stretch:
I 90
— 252 mi, about 4h 32m
Turn-by-Turn Driving Directions
Step-by-step road directions between Millwood, WA and Kent, WA.
1
Start on North Argonne Road
311 ft·9 sec·North Argonne Road
2
Continue on North Argonne Road
0.6 mi·1 min·North Argonne Road
3
Take the ramp
0.4 mi·45 sec
Toward Spokane
4
Merge onto I 90
9.3 mi·11 min·Spokane Valley Freeway
5
Keep slight left at fork onto I 90; US 395
57 mi·1 hr·I 90; US 395
6
Keep slight left at fork onto I 90
195 mi·3 hr 31 min·I 90
Use the straight / slight right lanes.
7
Take the exit
0.2 mi·30 sec
Exit 25Toward WA 18 West: AuburnUse the slight right lane.
8
Keep slight left at fork
448 ft·13 sec
Toward SR 18 west, Snoqualmie Parkway: Auburn, TacomaUse the straight / left / right lanes.
9
Merge onto WA 18
0.3 mi·25 sec·Snoqualmie Parkway
10
Continue on WA 18
16 mi·20 min·State Route 18
Use the straight / slight right lanes.
11
Take the exit
0.4 mi·49 sec
Toward WA 516: South East 272nd Street, CovingtonUse the straight / slight right lanes.
12
Turn right onto WA 516
2.0 mi·3 min·Southeast 272nd Street
Use the straight / left / right lanes.
13
Continue on WA 516
0.2 mi·16 sec·Southeast Kent-Kangley Road
14
Continue on WA 516
1.8 mi·3 min·Southeast Kent Kangley Road
Use the straight / left lanes.
15
Continue on WA 516
0.4 mi·55 sec·Southeast 256th Street
Use the left lane.
16
Continue on WA 516
1.0 mi·1 min·Canyon Drive
17
Continue on WA 516
0.1 mi·20 sec·East Smith Street
18
Turn left onto East Titus Street
0.2 mi·40 sec·East Titus Street
Use the left lane.
19
Continue on East Gowe Street
0.3 mi·56 sec·East Gowe Street
Use the straight / right lanes.
20
Turn right onto 2nd Avenue South
10 ft·0 sec·2nd Avenue South
21
Arrive at destination
2nd Avenue South
Trip Plan
Given the 5-hour 21-minute duration, starting early is recommended to maximize your daylight hours. Plan for one main stop, perhaps around the halfway mark or where services are most convenient, considering the 252-mile stretch on I-90. The estimated fuel cost of $60 is helpful for budgeting, so ensure your tank is full before departing Millwood. Because this is a single-day trip, you have the flexibility to adjust your schedule as needed, but keep an eye on traffic as you approach the Seattle metropolitan area.
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 142.5 miles from Millwood, WA, or about 2h 36m into the drive.
The longest continuous stretch on this route runs about 252 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 63 miles or 1h 10m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 142.5 miles or 2h 36m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 15m
Traffic, exits, and arrival timing usually matter more near Kent, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Millwood, 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 Millwood, WA
This is one driving day of about 285.1 miles and 5h 21m.
Your first comfortable stop window is around 63 miles from Millwood, 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 252 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 142.5 mi from Millwood, WA
· 2h 36m into the drive
Place data sourced from public business listings. Hours and availability may vary.
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...
16 mi from route
~39 min detour
Free
near mile 285.1
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$59.67 one way
$119.34 round trip
$5.32/gal25.4 MPG avg100 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$62.58
$125.15
premium
$5.77
$64.74
$129.48
diesel
$5.61
$62.95
$125.89
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$60
Meals
$25–$50
Total
$85–$110
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 99.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $30 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
85.5
1
$29.94
$13.68
Efficient EV
71.3
0
$24.95
$11.40
EV Truck/SUV
114
1
$39.91
$18.25
Gas CO2
100 kg
EV CO2
33 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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
Millwood, WA
Afternoon
in Millwood on Friday
Local time
12:55 PM
PDT
Current temp
72°F
Unavailable
Live forecast
Destination
Kent, WA
Afternoon
in Kent on Friday
Local time
12:55 PM
PDT
Current temp
47°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
25 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
5h 21m 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.
Frequently Asked Questions
The drive from Millwood, WA to Kent, WA covers 285.1 miles and takes about 5h 21m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 90, State Route 18, Spokane Valley Freeway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 142.5 miles from Millwood, WA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $59.67 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 11 significant decision points across 285.1 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.
The main spots that need attention: at 66.9 miles (I 90): Highway fork - watch signs carefully. Lane positioning matters here; at 262.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 262.4 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Millwood, WA and Kent, WA, road signs point toward Snoqualmie Parkway: Auburn and Tacoma.
Yes. Nearby national parks include Klondike Gold Rush - Seattle Unit National Historical Park.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
