How far is Dallesport, WA from Seattle, WA?

The driving distance from Dallesport, WA to Seattle, WA is about 241.6 miles (388.8 km), with a travel time of about 04h 02m by car.

  • The straight-line flight distance is about 147.9 miles (238 km).
  • For a round trip, plan for roughly 08h 04m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
241.56 mi
04h 02m
Flight
147.9 mi
238.02 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Dallesport.

Flight Distance

Direct air line
147.9 mi
Kilometers
238.02 km
Flight Time
00h 17m

Driving Distance

Road route
241.56 mi
Kilometers
388.76 km
Drive Time
04h 02m

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 02m.

Arrival Snapshot
Arrive in Seattle
Wed, Apr 22, 8:32 PM PDT
Return by in Dallesport
Thu, Apr 23, 12:34 AM PDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Dallesport
2026-04-22T16:29
Arrive Seattle
Wed, Apr 22, 8:32 PM PDT
Route Timing
04h 02m
One way by road
Best Departure Window
6:00 AM to 8:00 AM PDT
Leave early for more breathing room
Arrive between
10:02 AM to 12:02 PM PDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
8:56 AM PDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Dallesport
9:00 PM PDT
Early departure recommended

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.

Mid-route stop
Kittitas
WA

City in Kittitas County, Washington, United States

From Dallesport
121.1 mi
02h 01m
To Seattle
120.5 mi
02h 01m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
59°F
Wednesday

Chance Light Rain

Starts
Wed, Apr 22 6:00 AM PDT
Wind
13 to 22 mph W
Destination
56°F
Wednesday

Light Rain Likely

Starts
Wed, Apr 22 6:00 AM PDT
Wind
7 to 10 mph SSW

Driving Route Map

The map below follows the saved road route between Dallesport and Seattle.

Turn-by-Turn Driving Directions

Step-by-step road directions between Dallesport and Seattle.

  1. 1

    Start on 6th Avenue

    26 m · 6 sec · 6th Avenue

  2. 2

    Turn right onto Central Boulevard

    1656 ft · 1 min · Central Boulevard

  3. 3

    Turn straight onto Dallesport Road

    1.9 mi · 5 min · Dallesport Road

  4. 4

    Turn right onto Lewis and Clark Trail Highway

    18.5 mi · 23 min · Lewis and Clark Trail Highway

  5. 5

    Take the ramp slight left

    2032 ft · 56 sec

  6. 6

    Continue straight

    58.3 mi · 1 hr 8 min

  7. 7

    Continue on South Elm Street

    1.1 km · 1 min · South Elm Street

  8. 8

    Continue on Buena Way

    1.2 km · 1 min · Buena Way

  9. 9

    Continue on Evergreen Highway

    1.8 mi · 3 min · Evergreen Highway

  10. 10

    Continue on Buena Road

    683 ft · 12 sec · Buena Road

  11. 11

    Take the ramp slight right

    1674 ft · 41 sec

  12. 12

    Merge slight left

    18.2 mi · 21 min

  13. 13

    Continue straight

    31 mi · 34 min

  14. 14

    Keep slight left to continue on I 90 West

    107.5 mi · 2 hr 2 min

  15. 15

    Continue on Mount Baker Ridge Tunnel

    1.3 mi · 2 min · Mount Baker Ridge Tunnel

  16. 16

    Take the exit slight right toward I 5 North: Vancouver British Columbia, James Street, Madison Street

    1.2 km · 1 min

  17. 17

    Keep slight left to continue on I 5 North: Vancouver British Columbia, Madison Street, Convention Center

    881 ft · 22 sec

  18. 18

    Keep slight right to continue on Madison Street, Convention Place

    1843 ft · 55 sec

  19. 19

    Turn left onto Madison Street

    760 ft · 35 sec · Madison Street

  20. 20

    Turn left

    9 m · 2 sec

  21. 21

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Dallesport and Seattle.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
21 steps
5 turns on the saved route
Ramps & Exits
4
1 merges, 3 ramps or exits
Navigation Density
8.7 / 100 mi
Decision points by distance
Main Roads
I 90 West
107 mi · 44%
Lewis and Clark Trail Highway
77.1 mi · 32%
Buena Road
49.7 mi · 21%
Dallesport Road
1.88 mi · 1%
Evergreen Highway
1.77 mi · 1%
Mount Baker Ridge Tunnel
1.34 mi · 1%
Longest Stretch

I 90 West

Keep slight left to continue on I 90 West

107 mi · 02h 02m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
04h 02m
Long day trip
Same-Day Return
08h 04m
Round-trip wheel time
Road vs Air
+93.7 mi
147.9 mi direct line
Halfway Stop
Kittitas
02h 01m from Dallesport
Leave By
8:56 AM PDT
Early departure recommended
Weather Watch

Chance Light Rain leaving Dallesport and Light Rain Likely near Seattle.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Dallesport to Seattle?

The road trip is about 241.6 miles (388.8 km) and usually takes 04h 02m 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?

Kittitas is a useful midpoint, sitting about 121.1 miles from Dallesport and 120.5 miles from Seattle.

How much longer is the road route than the straight-line distance?

The direct path is about 147.9 miles (238 km), while the road route adds roughly 93.7 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:56 AM PDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $44.59 one way or $89.17 round trip. Estimated CO2 is about 75.7 kg one way.

What should you check before leaving?

Before you leave, expect Chance Light Rain around Dallesport and Light Rain Likely near Seattle.

Stop Ideas Near Kittitas

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Kittitas, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Kittitas.

RAIL

Columbia Station

49 mi away
Kittitas & South Columbia Sts.
BUS

Quincy, Washington

52 mi away
102 B St NE
BUS

Leavenworth, Washington

71 mi away
Hwy 2 and 12th St.
RAIL

Leavenworth

71 mi away
11645 North Rd

Flight Path Map

This map shows the direct air route between Dallesport and Seattle. Straight-line distance: 147.9 mi (238.02 km).

Dallesport

#1 Dallesport

Census designated place

Population1,202
Coordinates45.6173400, -121.1795200
Altitude65
CountryUnited States
Seattle

#2 Seattle

The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.

Population769,714
Coordinates47.6062100, -122.3320700
Altitude56
CountryUnited States
Start: 6th Avenue (-121.179518, 45.617504)
End: (-122.332143, 47.606309)

Estimated Travel Time

Distance: 389 km by road

SpeedTime
30 mph (48.3 km/h)08h 02m
40 mph (64.37 km/h)06h 02m
50 mph (80.47 km/h)04h 49m
60 mph (96.56 km/h)04h 01m
70 mph (112.65 km/h)03h 27m
80 mph (129 km/h)03h 00m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
8.52 gal
32.27 L · about $44.59
Round trip
$89.17
17.04 gal · 64.54 L
Estimated CO2
75.7 kg one way
Round trip: 151.4 kg / 334 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $5.23 $44.59 $89.17
Mid-grade $5.57 $47.43 $94.86
Premium $5.77 $49.17 $98.34
Diesel $5.47 $46.58 $93.16

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 22, 2026

There is no time difference between Dallesport and Seattle. The current time is 16:29:55.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.