This 274.7-mile journey from Federal Way, WA, to Dayton, WA, is a manageable one-day drive, estimated to take around 5 hours and 55 minutes. Primarily utilizing I-90 and then transitioning to WA 26 and WA 261, this route offers a highway-focused experience. With a projected fuel cost of approximately $57, it's an economical option for a quick trip. The drive moves you from the Pacific Coast region of Washington to another part of the same region, making it a straightforward exploration within the state. It's well-suited for a single day of travel.
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
137.4 miles from Federal Way, WA
A natural place for your longest stop of the day
, about 2h 39m into the drive
.
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Drive Character
Expect a predominantly highway-focused drive, with 96% of the route being on major roadways. You'll spend a significant portion on I-90, including a continuous stretch of 111.9 miles, which offers a steady pace. As you transition to WA 26 and WA 261, the character of the drive may shift slightly, but the overall feel remains that of efficient travel on well-maintained roads. This route is designed for covering distance effectively.
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 111.9 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 90 and WA 26. 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 South 312th Street.
Route Complexity5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
This drive requires moderate attention. Across 274.7 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 (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.
Critical Maneuvers
5 of 14 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
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
5
4.3 mi into trip|~9m in|WA 18 / State Route 18
Merge onto WA 18 / State Route 18
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Federal Way, WA to Dayton, WA, road signs begin pointing toward Pullman along the way.
Pullman
141.3 mi in|~2h 44m
Main Roads
Road
Distance
Duration
I 90
111.9 mi
2h 2m
WA 26
82.8 mi
1h 49m
WA 261
29.3 mi
51m
State Route 18
24.4 mi
31m
US 12
14.6 mi
18m
North Main Street
6.4 mi
11m
South Peasley Canyon Road
1.8 mi
3m
South 320th Street
1.4 mi
3m
Longest stretch:
I 90
— 111.9 mi, about 2h 2m
Turn-by-Turn Driving Directions
Step-by-step road directions between Federal Way, WA and Dayton, 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
112 mi·2 hr 2 min·I 90
Use the straight / slight right lanes.
15
Take the exit
0.3 mi·35 sec
Toward WA 26 East: Othello, Pullman
16
Turn straight onto WA 26
83 mi·1 hr 49 min·WA 26
17
Turn right onto WA 260; WA 261
6.4 mi·11 min·North Main Street
18
Turn left onto WA 261
29 mi·51 min·WA 261
19
At end of road, turn right onto US 12
15 mi·18 min·US 12
20
Turn left onto Patit Road
85 ft·3 sec·Patit Road
21
Arrive at destination
Patit Road
Trip Plan
To make the most of this 5-hour, 55-minute drive, consider departing in the morning to allow ample time for the journey. With only one recommended stop, you have flexibility in pacing yourself. The longest stretch without a break is over 111 miles, so plan your fueling and rest stops accordingly. Pay attention to the transition from I-90 to WA 26 and WA 261, as this is where the road type changes, and ensure you are comfortable with the highway share of 96% for the entire trip.
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 137.4 miles from Federal Way, WA, or about 2h 39m into the drive.
The longest continuous stretch on this route runs about 111.9 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 80 miles or 1h 37m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 137.4 miles or 2h 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 4h 35m
Traffic, exits, and arrival timing usually matter more near Dayton, 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 274.7 miles and 5h 55m.
Your first comfortable stop window is around 80 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 111.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 137.4 mi from Federal Way, WA
· 2h 39m into the drive
The midpoint is around 137.4 miles from Federal Way, WA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before I 90 if your tank is already low. That segment runs about 111.9 miles.
Arriving in Dayton, WA
The final approach into Dayton, WA usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Dayton, WA.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
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...
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$57.49 one way
$114.98 round trip
$5.32/gal25.4 MPG avg96 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$60.29
$120.59
premium
$5.77
$62.38
$124.76
diesel
$5.61
$60.65
$121.30
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$57
Meals
$25–$50
Total
$82–$107
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 96.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
82.4
1
$28.84
$13.19
Efficient EV
68.7
0
$24.04
$10.99
EV Truck/SUV
109.9
1
$38.46
$17.58
Gas CO2
96 kg
EV CO2
32 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 data refreshed 8 hours ago
Origin
Federal Way, WA
Late night
in Federal Way on Wednesday
Local time
1:35 AM
PDT
Current temp
49°F
Rain
SSW 16 mph94% chanceLive forecast
Destination
Dayton, WA
Late night
in Dayton on Wednesday
Local time
1:35 AM
PDT
Current temp
64°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
15 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
5h 55m 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 Federal Way, WA to Dayton, WA covers 274.7 miles and takes about 5h 55m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 90, WA 26, WA 261. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 137.4 miles from Federal Way, WA. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $57.49 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 drive requires moderate attention. Across 274.7 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.
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.
On the drive from Federal Way, WA to Dayton, WA, road signs begin pointing toward Pullman along the way.
