How far is Seattle, WA from Carson, WA?
The driving distance from Seattle, WA to Carson, WA is about 210.8 miles (339.3 km), with a travel time of about 04h 17m by car.
- The straight-line flight distance is about 132.2 miles (212.8 km).
- For a round trip, plan for roughly 08h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 17m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Sunny
Driving Route Map
The map below follows the saved road route between Seattle and Carson.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seattle and Carson.
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1
Start on the route
9 m · 8 sec
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2
Turn left onto Madison Street
62 m · 11 sec · Madison Street
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3
Turn right onto 4th Avenue
94 m · 15 sec · 4th Avenue
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4
Turn right onto Spring Street
647 ft · 26 sec · Spring Street
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5
Take the ramp right toward I 5 South: Portland
1151 ft · 28 sec
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6
Continue straight
3180 ft · 1 min
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7
Keep slight left to continue on I 90 East, I 5 South: Bellevue, Portland
45 m · 2 sec
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8
Keep slight right to continue on I 5 South: Tacoma, Portland
589 ft · 8 sec
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9
Keep slight left to continue on Airport Way
93 m · 4 sec
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10
Keep slight left to continue on I 5 South: Sea-Tac Airport
30.4 mi · 38 min
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11
Keep slight right
126.2 mi · 2 hr 23 min
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12
Keep slight right to continue on I 205 South: Salem
10.1 mi · 13 min
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13
Take the exit slight right toward WA 14: Camas, City Center
643 ft · 14 sec
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14
Keep slight left to continue on WA 14 East: Camas
1.5 km · 2 min
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15
Merge slight left onto Southeast Lewis and Clark Highway
5.6 mi · 7 min · Southeast Lewis and Clark Highway
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16
Continue on Lewis and Clark Highway
3.9 mi · 5 min · Lewis and Clark Highway
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17
Enter the roundabout and take exit 1 toward Lewis and Clark Highway
26 m · 1 sec · Lewis and Clark Highway
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18
Exit the roundabout onto Lewis and Clark Highway
1.5 km · 1 min · Lewis and Clark Highway
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19
Enter the roundabout and take exit 2 toward Southeast Lewis and Clark Highway
31 m · 2 sec · Southeast Lewis and Clark Highway
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20
Exit the roundabout onto Southeast Lewis and Clark Highway
4.5 mi · 6 min · Southeast Lewis and Clark Highway
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21
Continue on Evergreen Highway
22.3 mi · 31 min · Evergreen Highway
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22
Continue on 2nd Street
1.2 km · 2 min · 2nd Street
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23
Continue on Lewis and Clark Trail Highway
2.8 mi · 4 min · Lewis and Clark Trail Highway
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24
Enter the roundabout and take exit 2 toward Wind River Road
60 m · 9 sec · Wind River Road
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25
Exit the roundabout onto Wind River Road
1.5 km · 2 min · Wind River Road
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26
Turn right onto Hot Springs Avenue
82 m · 9 sec · Hot Springs Avenue
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27
Turn right onto 1st Street
60 m · 9 sec · 1st Street
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28
Arrive at your destination
0 m · 1 sec · 1st Street
Car Route Details
A richer read on the saved driving route between Seattle and Carson.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 5 South
Keep slight right
126 mi · 02h 23m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Seattle and Sunny near Carson.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seattle to Carson?
The road trip is about 210.8 miles (339.3 km) and usually takes 04h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Toledo is a useful midpoint, sitting about 105.3 miles from Seattle and 105.5 miles from Carson.
How much longer is the road route than the straight-line distance?
The direct path is about 132.2 miles (212.8 km), while the road route adds roughly 78.6 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:24 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $40.44 one way or $80.87 round trip. Estimated CO2 is about 66.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Seattle and Sunny near Carson.
Stop Ideas Near Toledo
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 Toledo.
Centralia station
Kelso Multimodal Transportation Center
Centennial Station
Astoria Transit Center
Flight Path Map
This map shows the direct air route between Seattle and Carson. Straight-line distance: 132.21 mi (212.77 km).
#1 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 |
#2 Carson
Positioned on the north bank of the Columbia River in Skamania County, this unincorporated community lies within the Columbia River Gorge National Scenic Area at an elevation of 469 feet.
| Population | 0 |
| Coordinates | 45.7253900, -121.8192400 |
| Altitude | 143 |
| Country | United States |
End: Carson (-121.81924, 45.72539)
Estimated Travel Time
Distance: 339 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 01m |
| 40 mph (64.37 km/h) | 05h 16m |
| 50 mph (80.47 km/h) | 04h 12m |
| 60 mph (96.56 km/h) | 03h 30m |
| 70 mph (112.65 km/h) | 03h 00m |
| 80 mph (129 km/h) | 02h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.44 | $40.44 | $80.87 |
| Mid-grade | $5.72 | $42.55 | $85.10 |
| Premium | $5.98 | $44.47 | $88.94 |
| Diesel | $7.29 | $54.25 | $108.50 |
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 · Oct 15, 2026