Spanning 169.9 miles across Washington State, this trip from Ephrata to Renton is a straightforward journey that takes approximately 3 hours and 16 minutes to complete. Because the travel time is manageable, it works perfectly as a single-day excursion, meaning you won't need to worry about overnight lodging. You will spend the vast majority of your time on major thoroughfares, primarily relying on I-90 and I-405 to navigate the distance. Budgeting roughly $36 for fuel should cover your transit costs comfortably. Since both cities are located within the Pacific Coast region, you can expect a consistent climate and environment throughout the trip. It is a practical, efficient route that gets you from point A to point B without unnecessary detours.
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
84.9 miles from Ephrata, WA
A natural place for your longest stop of the day
, about 1h 39m into the drive
.
Main Roads
Road
Distance
Duration
I 90
141.3 mi
2h 35m
Basin Street Southwest
20.1 mi
27m
I 405
4.9 mi
6m
Logan Avenue North
1.1 mi
2m
Airport Way South
0.4 mi
<1m
North Southport Drive
0.3 mi
<1m
Rainier Avenue South
0.1 mi
<1m
3rd Avenue Southwest
<0.1 mi
<1m
Longest stretch:
I 90
— 141.3 mi, about 2h 35m
Turn-by-Turn Driving Directions
Step-by-step road directions between Ephrata, WA and Renton, WA.
1
Start on 3rd Avenue Southwest
43 ft·6 sec·3rd Avenue Southwest
2
Turn left onto WA 28
20 mi·27 min·Basin Street Southwest
3
Take the ramp
0.3 mi·44 sec
Toward I 90 West: Seattle
4
Merge onto I 90
141 mi·2 hr 35 min·I 90
Use the straight / slight right lanes.
5
Take the exit
0.2 mi·27 sec
Exit 10Toward I 405: Renton, EverettUse the straight / slight right lanes.
6
Keep slight left at fork
0.6 mi·1 min
Toward I 405 South: RentonUse the slight left lane.
7
Merge onto I 405
4.9 mi·6 min·I 405
Use the straight / slight right lanes.
8
Take the exit
0.3 mi·36 sec
Exit 5Toward WA 900 East: Park Avenue North, Sunset Boulevard NortheastUse the straight / slight right lanes.
9
Turn right onto North Southport Drive
0.3 mi·48 sec·North Southport Drive
Use the right lane.
10
Continue on Logan Avenue North
1.1 mi·2 min·Logan Avenue North
Use the straight lane.
11
Continue on Airport Way South
0.4 mi·59 sec·Airport Way South
Use the left lane.
12
Turn left onto Rainier Avenue South
0.1 mi·24 sec·Rainier Avenue South
Use the left lane.
13
Turn left
39 ft·2 sec
14
Arrive at destination
Trip Plan
To make the most of your 3-hour and 16-minute drive, try to time your departure to avoid peak traffic periods near the Renton area. You are allotted one planned stop along the way, which serves as a great opportunity to stretch your legs during that 141.3-mile stretch on I-90. Since the route is relatively short, you have the flexibility to adjust your schedule based on your personal energy levels rather than strict time constraints. Keep a close eye on your fuel gauge before leaving Ephrata to ensure you stay within your $36 budget, as prices can fluctuate once you move closer to the city. Prioritizing your single break midway through the interstate portion will help you arrive in Renton refreshed and ready for your destination.
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 84.9 miles from Ephrata, WA, or about 1h 39m into the drive.
The longest continuous stretch on this route runs about 141.3 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 37 miles or 46m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 84.9 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 38m
Traffic, exits, and arrival timing usually matter more near Renton, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Ephrata, 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 Ephrata, WA
This is one driving day of about 169.9 miles and 3h 16m.
Your first comfortable stop window is around 37 miles from Ephrata, 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 141.3 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 10
5 decision points cluster between mile 20.5 and 167.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
20.5 mi into trip|~28m in|I 90
Merge onto I 90
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
161.8 mi into trip|~3h 3m in
Take the exit toward I 405: Renton, Everett
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.
Exit 10
Toward I 405: Renton, Everett
7
162 mi into trip|~3h 4m in
Keep slight left at fork toward I 405 South: Renton
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward I 405 South: Renton
5
162.7 mi into trip|~3h 5m in|I 405
Merge onto I 405
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
167.6 mi into trip|~3h 11m in
Take the exit toward WA 900 East: Park Avenue North, Sunset Boulevard Northeast
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.
Exit 5
Toward WA 900 East: Park Avenue North, Sunset B...
Fuel & Cost
Regular Gas
$35.56 one way
$71.12 round trip
$5.32/gal25.4 MPG avg59 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$37.29
$74.58
premium
$5.77
$38.58
$77.16
diesel
$5.61
$37.51
$75.02
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$36
Meals
$25–$50
Total
$61–$86
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 59.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
51
0
$17.84
$8.16
Efficient EV
42.5
0
$14.87
$6.80
EV Truck/SUV
68
0
$23.79
$10.87
Gas CO2
59 kg
EV CO2
20 kg (66% 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
Ephrata, WA
Late night
in Ephrata on Sunday
Local time
1:03 AM
PDT
Current temp
49°F
Unavailable
Live forecast
Destination
Renton, WA
Late night
in Renton on Sunday
Local time
1:03 AM
PDT
Current temp
48°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
1 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 16m 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.
More Details
What kind of drive is this?
Expect a highway-focused experience, as 86% of this drive is spent on high-speed roads. The journey begins on local streets like Basin Street Southwest before you merge onto the interstate for the bulk of your travel. You will face a significant, long-haul stretch of 141.3 miles exclusively on I-90, which defines the personality of this drive as a steady, interstate-heavy transit. While the initial leg feels like a standard connector, the transition onto I-405 toward the end marks your arrival into the more congested metropolitan approach. You should be prepared for a consistent pace behind the wheel, as the route prioritizes speed and efficiency over winding, technical backroads.
86% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 141.3 mi on I 90.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on I 90 and Basin Street Southwest. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes around 20.5 miles in near I 90.
Driving Effort6/10
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 169.9 miles you will encounter 10 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: at 20.5 miles (I 90): Merge point - match speed before joining. Lane positioning matters here; at 161.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 162 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 16m. Total distance: 169.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 16m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (86%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 141.3 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 Renton, 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 20.5 miles (I 90): Merge point - match speed before joining. Lane positioning matters here; at 161.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 162 miles: Highway fork - watch signs carefully. Lane positioning matters here.
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 Renton, WA, but most travelers stay overnight.
