Mount Vernon to Kent is 79 miles and takes about 1 hour 40 minutes via I 5 and I 405, with a fuel budget near $17 and enough daylight to finish in a day. This drive stays within Washington and the Pacific Coast region, making it a straightforward trip. Most of the route is highway, so expect steady progress. It's a good option for a quick connection between two points without a lot of detours.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
39.5 miles from Mount Vernon, WA
A natural place for your longest stop of the day
, about 48m into the drive
.
Main Roads
Road
Distance
Duration
I 5
42.9 mi
50m
I 405
26.7 mi
33m
Valley Freeway
4.6 mi
5m
Central Avenue North
1.3 mi
3m
South 2nd Street
0.3 mi
<1m
West Kincaid Street
0.2 mi
<1m
East Gowe Street
0.2 mi
<1m
North 5th Street
0.1 mi
<1m
Longest stretch:
I 5
— 42.9 mi, about 50m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Vernon, WA and Kent, WA.
1
Start on North 5th Street
0.1 mi·39 sec·North 5th Street
2
At end of road, turn left onto East Fulton Street
276 ft·14 sec·East Fulton Street
3
Turn left onto North 4th Street
0.1 mi·11 sec·North 4th Street
4
Continue on WA 99
0.3 mi·44 sec·South 2nd Street
5
Turn left onto West Kincaid Street
0.2 mi·22 sec·West Kincaid Street
6
Take the ramp
0.4 mi·45 sec
Toward I 5 North: Vancouver British Columbia
7
Merge onto I 5
43 mi·50 min·I 5
Use the straight / slight right lanes.
8
Take the exit
0.9 mi·1 min
Exit 182Toward I 405 South: Bellevue, RentonUse the straight / slight right lanes.
9
Merge onto I 405
0.9 mi·1 min·I 405
10
Keep slight right at fork onto I 405
26 mi·32 min·I 405
Use the straight / slight right lanes.
11
Take the exit
0.5 mi·1 min
Exit 2Toward WA 167 South: Auburn, Rainier Avenue SouthUse the slight right lane.
12
Keep slight left at fork
0.5 mi·57 sec
Toward WA 167 South: AuburnUse the straight / slight right lanes.
13
Merge onto WA 167
4.6 mi·5 min·Valley Freeway
Use the straight / right lanes.
14
Take the exit
0.3 mi·42 sec
Toward 84th Avenue South, North Central AvenueUse the straight / slight right lanes.
15
Turn left onto Central Avenue North
1.3 mi·3 min·Central Avenue North
Use the left / straight / right lanes.
16
Turn right onto East Gowe Street
0.2 mi·29 sec·East Gowe Street
17
Turn right onto 2nd Avenue South
10 ft·0 sec·2nd Avenue South
18
Arrive at destination
2nd Avenue South
Trip Plan
Given this drive is under two hours, you can easily complete it in one day. Leaving mid-morning can help you avoid the worst of the commuter traffic. Since it's a shorter trip, you don't need to plan for extensive stops, but keep an eye on your fuel, especially since the longest stretch without exits is over 40 miles. The estimated fuel cost is $17. Enjoy the flexibility this relatively short route offers.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 39.5 miles from Mount Vernon, WA, or about 48m into the drive.
The longest continuous stretch on this route runs about 42.9 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 17 miles or 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 39.5 miles or 48m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 22m
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 Mount Vernon, WA so your first major turns are already loaded.
Day 1
Settle into the route from Mount Vernon, WA
This is one driving day of about 79 miles and 1h 40m.
Your first comfortable stop window is around 17 miles from Mount Vernon, WA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 5 for about 42.9 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 15
5 decision points cluster between mile 44.1 and 77.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
44.1 mi into trip|~53m in
Take the exit toward I 405 South: Bellevue, Renton
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 182
Toward I 405 South: Bellevue, Renton
6
45.9 mi into trip|~55m in|I 405
Keep slight right at fork onto I 405
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
8
71.7 mi into trip|~1h 28m in
Take the exit toward WA 167 South: Auburn, Rainier Avenue South
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 2
Toward WA 167 South: Auburn, Rainier Avenue Sou...
7
72.2 mi into trip|~1h 29m in
Keep slight left at fork toward WA 167 South: Auburn
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward WA 167 South: Auburn
7
77.3 mi into trip|~1h 35m in
Take the exit toward 84th Avenue South, North Central Avenue
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 84th Avenue South, North Central Avenue
Fuel & Cost
Regular Gas
$16.53 one way
$33.07 round trip
$5.32/gal25.4 MPG avg28 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$17.34
$34.68
premium
$5.77
$17.94
$35.88
diesel
$5.61
$17.44
$34.88
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$17
Meals
$25–$50
Total
$42–$67
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 27.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $8 in charging
· 0 stops
· 68% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
23.7
0
$8.30
$3.79
Efficient EV
19.8
0
$6.91
$3.16
EV Truck/SUV
31.6
0
$11.06
$5.06
Gas CO2
28 kg
EV CO2
9 kg (68% 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 20, 2026
Origin
Mount Vernon, WA
Late night
in Mount Vernon on Tuesday
Local time
3:43 AM
PDT
Current temp
45°F
Unavailable
Live forecast
Destination
Kent, WA
Late night
in Kent on Tuesday
Local time
3:43 AM
PDT
Current temp
68°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
23 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
1h 40m 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...
7 mi from route
~18 min detour
Free
near mile 63.6
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly highway, with 94% of the 79 miles on major freeways. You'll spend a significant amount of time on I 5, including a stretch of 42.9 miles. The transition to surface roads will occur as you approach your destination, with the Valley Freeway also forming part of the route. Expect frequent exits and merging traffic as you get closer to Kent.
94% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 42.9 mi on I 5.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 5 and I 405. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 44.1 miles in.
Driving Effort9/10
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 79 miles you will encounter 15 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 44.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 45.9 miles (I 405): Highway fork - watch signs carefully. Lane positioning matters here; at 71.7 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 Mount Vernon, WA and Kent, WA, road signs point toward Renton and Rainier Avenue South.
Doable as a same-day drive at 1h 40m. Total distance: 79 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 40m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (94%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 42.9 miles on I 5. 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 Kent, 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 44.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 45.9 miles (I 405): Highway fork - watch signs carefully. Lane positioning matters here; at 71.7 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.
Yes. A round trip is manageable in a single day if you plan a break at Kent, WA before heading back.
