How far is Dayton, WA from Seattle, WA?
The driving distance from Dayton, WA to Seattle, WA is about 156.8 miles (252.4 km), with a travel time of about 02h 39m by car.
- The straight-line flight distance is about 116.1 miles (186.8 km).
- For a round trip, plan for roughly 05h 18m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 39m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Thurston County, Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Mostly Cloudy then Chance Light Rain
Driving Route Map
The map below follows the saved road route between Dayton and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dayton and Seattle.
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1
Start on Northeast Cedar Creek Road
6.6 mi · 10 min · Northeast Cedar Creek Road
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2
Continue on Northeast Hayes Road
1.3 mi · 2 min · Northeast Hayes Road
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3
Continue on Northwest Hayes Road
4.1 mi · 6 min · Northwest Hayes Road
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4
Continue on East CC Street
1033 ft · 38 sec · East CC Street
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5
At the end of the road, turn left onto Lewis River Road
38 m · 7 sec · Lewis River Road
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6
Turn right onto Atlantic Avenue
1.1 km · 2 min · Atlantic Avenue
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7
Take the ramp straight
1490 ft · 36 sec
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8
Merge slight left
111.4 mi · 2 hr 6 min
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9
Keep slight right
31.9 mi · 40 min
-
10
Take the exit slight left toward Seneca Street
1359 ft · 36 sec
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11
Turn left onto Seneca Street
98 m · 18 sec · Seneca Street
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12
Turn left onto 5th Avenue
615 ft · 27 sec · 5th Avenue
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13
Turn right onto Madison Street
34 m · 9 sec · Madison Street
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14
Turn left
9 m · 2 sec
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15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Dayton and Seattle.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Atlantic Avenue
Merge slight left
111 mi · 02h 06m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Light Rain Likely leaving Dayton and Mostly Cloudy then Chance Light Rain near Seattle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Dayton to Seattle?
The road trip is about 156.8 miles (252.4 km) and usually takes 02h 39m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Grand Mound is a useful midpoint, sitting about 78.4 miles from Dayton and 78.4 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 116.1 miles (186.8 km), while the road route adds roughly 40.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 1:12 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.94 one way or $57.88 round trip. Estimated CO2 is about 49.1 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Dayton and Mostly Cloudy then Chance Light Rain near Seattle.
Stop Ideas Near Grand Mound
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Grand Mound.
Centralia station
Centennial Station
Tacoma Dome Station
Kelso Multimodal Transportation Center
Flight Path Map
This map shows the direct air route between Dayton and Seattle. Straight-line distance: 116.08 mi (186.81 km).
#1 Dayton
Town in Washington
| Population | 2,477 |
| Coordinates | 45.9315000, -122.5273200 |
| Altitude | 93 |
| Country | United States |
#2 Seattle
The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
| Population | 769,714 |
| Coordinates | 47.6062100, -122.3320700 |
| Altitude | 56 |
| Country | United States |
End: (-122.332143, 47.606309)
Estimated Travel Time
Distance: 252 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 13m |
| 40 mph (64.37 km/h) | 03h 55m |
| 50 mph (80.47 km/h) | 03h 08m |
| 60 mph (96.56 km/h) | 02h 36m |
| 70 mph (112.65 km/h) | 02h 14m |
| 80 mph (129 km/h) | 01h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $28.94 | $57.88 |
| Mid-grade | $5.57 | $30.79 | $61.57 |
| Premium | $5.77 | $31.91 | $63.83 |
| Diesel | $5.47 | $30.23 | $60.47 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Washington · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.