Origin
Renton, WA
Late night in Renton on Sunday
Local time
12:31 AM
PDT
Current temp
48°F
Unavailable
Live forecast
Trip from Renton, WA to Southworth, WA
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
59m
Distance
18.7 mi
30 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 54m
★
6 AM
0h 59m
8 AM
1h 9m
10 AM
1h 3m
12 PM
1h 2m
3 PM
1h 3m
5 PM
1h 8m
8 PM
0h 56m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Southworth, WA
JOHN CALLERY
Trip Overview
Renton to Southworth is 18.7 miles and takes about 59 minutes via Fauntleroy - Southworth Ferry, with a fuel budget near $4 and enough daylight to finish in a day. This short hop stays within Washington's Pacific Coast region, offering a straightforward journey. It's a practical option for those needing to cross Puget Sound without a significant time commitment. You'll primarily be on ferry service, making it a simple and direct trip with minimal driving.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Fauntleroy - Southworth Ferry | 4.8 mi | 29m |
| WA 518 | 3.1 mi | 3m |
| I 405 | 2 mi | 2m |
| Southwest 106th Street | 1 mi | 3m |
| Rainier Avenue South | 0.9 mi | 2m |
| Ambaum Boulevard Southwest | 0.8 mi | 1m |
| Southwest 128th Street | 0.8 mi | 1m |
| Marine View Drive Southwest | 0.7 mi | 2m |
Longest stretch:
Fauntleroy - Southworth Ferry
— 4.8 mi, about 29m
Turn-by-Turn Driving Directions
Step-by-step road directions between Renton, WA and Southworth, WA.
1
Start on this road
63 ft
·
5 sec
·
this road
2
Turn left
71 ft
·
8 sec
3
Turn left
98 ft
·
12 sec
4
Turn left onto Rainier Avenue South
0.9 mi
·
2 min
·
Rainier Avenue South
5
Continue on WA 167
324 ft
·
7 sec
·
Valley Freeway
Use the left lane.
6
Take the exit
0.4 mi
·
47 sec
Toward I 405 South: Burien, Seattle, Tacoma
Use the slight right lane.
7
Merge onto I 405
2.0 mi
·
2 min
·
I 405
Use the straight / right lanes.
8
Continue on WA 518
3.1 mi
·
3 min
·
WA 518
Use the straight / right lanes.
9
Take the exit
0.5 mi
·
1 min
Toward WA 509 North: Seattle
Use the slight right lane.
10
Merge onto WA 509
0.7 mi
·
50 sec
·
WA 509
11
Take the exit
0.2 mi
·
35 sec
Toward South 128th Street
Use the straight / slight right lanes.
12
Turn left onto South 128th Street
0.4 mi
·
44 sec
·
South 128th Street
Use the left / straight / right lanes.
13
Continue on Southwest 128th Street
0.8 mi
·
1 min
·
Southwest 128th Street
14
Turn right onto Ambaum Boulevard Southwest
0.4 mi
·
1 min
·
Ambaum Boulevard Southwest
Use the right lane.
15
Keep slight left at fork onto Ambaum Boulevard Southwest
0.4 mi
·
51 sec
·
Ambaum Boulevard Southwest
16
Continue on 16th Avenue Southwest
0.6 mi
·
1 min
·
16th Avenue Southwest
17
Turn left onto Southwest 107th Street
0.3 mi
·
43 sec
·
Southwest 107th Street
Use the left lane.
18
Continue on Southwest 107th Way
0.2 mi
·
33 sec
·
Southwest 107th Way
19
Continue on Southwest 106th Street
1.0 mi
·
3 min
·
Southwest 106th Street
20
At end of road, turn right onto Marine View Drive Southwest
0.7 mi
·
2 min
·
Marine View Drive Southwest
21
Continue on 45th Avenue Southwest
0.4 mi
·
1 min
·
45th Avenue Southwest
22
Continue on Southwest Director Street
0.1 mi
·
30 sec
·
Southwest Director Street
23
Continue on Fauntleroy Way Southwest
0.1 mi
·
31 sec
·
Fauntleroy Way Southwest
24
Continue on Fauntleroy Way Southwest
374 ft
·
12 sec
·
Fauntleroy Way Southwest
25
Keep slight right at fork onto Southwest Barton Street
171 ft
·
2 sec
·
Southwest Barton Street
26
Turn slight right onto Fauntleroy Ferry Terminal
0.1 mi
·
12 sec
·
Fauntleroy Ferry Terminal
27
Turn straight onto WA 160
4.8 mi
·
29 min
·
Fauntleroy - Southworth Ferry
28
Continue on WA 160
0.3 mi
·
2 min
·
Southworth Ferry
29
Turn left
35 ft
·
2 sec
30
Arrive at destination
Heads-up: tricky spots
5 of 175 decision points cluster between mile 1 and 9.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
1 mi into trip
|
~2m in
Take the exit toward I 405 South: Burien, Seattle, Tacoma
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 I 405 South: Burien, Seattle, Tacoma
6
6.6 mi into trip
|
~10m in
Take the exit toward WA 509 North: Seattle
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Toward WA 509 North: Seattle
6
7.8 mi into trip
|
~11m in
Take the exit toward South 128th Street
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Toward South 128th Street
6
8 mi into trip
|
~12m in
|
South 128th Street
Turn left onto South 128th Street
Lane positioning matters here
Use the left / straight / right lanes.
6
9.1 mi into trip
|
~15m in
|
Ambaum Boulevard Southwest
Turn right onto Ambaum Boulevard Southwest
Lane positioning matters here
Use the right lane.
Fuel & Cost
Regular Gas
$3.91 one way
$7.83 round trip
$5.32/gal
25.4 MPG avg
7 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $5.58 | $4.10 | $8.21 |
| premium | $5.77 | $4.25 | $8.49 |
| diesel | $5.61 | $4.13 | $8.26 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$4
Estimated CO2 emission: 6.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 71% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 5.6 | 0 | $1.96 | $0.90 |
| Efficient EV | 4.7 | 0 | $1.64 | $0.75 |
| EV Truck/SUV | 7.5 | 0 | $2.62 | $1.20 |
Gas CO2
7 kg
EV CO2
2 kg (71% 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.
Destination
Southworth, WA
Late night in Southworth on Sunday
Local time
12:31 AM
PDT
Current temp
64°F
Unavailable
Live forecast
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
16 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
59m 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.
What kind of drive is this?
This route is a mixed drive, with only 31% on highways. The longest uninterrupted stretch you'll encounter is 4.8 miles on the Fauntleroy - Southworth Ferry. Expect a blend of urban access roads and the unique experience of a ferry crossing. The drive transitions from typical Pacific Northwest roadways to the open water of Puget Sound, offering a brief but varied driving experience.
31% highway, the rest on surface roads — varied driving throughout.
30 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 4.8 mi on Fauntleroy - Southworth Ferry.
How Hard Is This Drive?
10/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1 miles in.
Driving Effort
10/10
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 17 decision points packed into just 18.7 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 59m.
Where does it get tricky?
The main spots that need attention: at 1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 7.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Renton, WA and Southworth, WA, road signs point toward Seattle and Tacoma.
Seattle
1 mi in
|
~2m
Tacoma
1 mi in
|
~2m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 59m. Total distance: 18.7 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
59m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (31%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile.
Frequently Asked Questions
The longest stretch is about 4.8 miles on Fauntleroy - Southworth Ferry. The full list of main roads is in the Roads section above.
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 Southworth, WA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 6.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 7.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes. A round trip is manageable in a single day if you plan a break at Southworth, WA before heading back.
How this page is built
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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