How far is Ahtanum, WA from Seattle, WA?
The driving distance from Ahtanum, WA to Seattle, WA is about 153.8 miles (247.5 km), with a travel time of about 02h 33m by car.
- The straight-line flight distance is about 108.2 miles (174.1 km).
- For a round trip, plan for roughly 05h 07m 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 33m.
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 Kittitas County, Washington, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Driving Route Map
The map below follows the saved road route between Ahtanum and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ahtanum and Seattle.
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1
Start on South 85th Avenue
33 m · 9 sec · South 85th Avenue
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2
Turn left onto Aspen Road
110 m · 14 sec · Aspen Road
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3
Turn right onto South 84th Avenue
108 m · 18 sec · South 84th Avenue
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4
Turn left onto Ahtanum Road
1.3 mi · 2 min · Ahtanum Road
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5
Turn left onto South 64th Avenue
1.4 km · 2 min · South 64th Avenue
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6
Turn right onto West Washington Avenue
1.8 mi · 4 min · West Washington Avenue
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7
Turn left onto 40th Avenue
3.2 mi · 7 min · 40th Avenue
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8
Take the ramp straight
2251 ft · 55 sec
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9
Merge slight left
2 mi · 2 min
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10
Take the exit slight right toward I 82 West, US 97 North: Selah, Ellensburg
1455 ft · 50 sec
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11
Turn straight onto Selah Road
31 m · 2 sec · Selah Road
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12
Take the ramp slight right
34 m · 3 sec
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13
Keep slight left
1297 ft · 32 sec
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14
Merge slight right
30.3 mi · 33 min
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15
Keep slight left to continue on I 90 West
107.5 mi · 2 hr 2 min
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16
Continue on Mount Baker Ridge Tunnel
1.3 mi · 2 min · Mount Baker Ridge Tunnel
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17
Take the exit slight right toward I 5 North: Vancouver British Columbia, James Street, Madison Street
1.2 km · 1 min
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18
Keep slight left to continue on I 5 North: Vancouver British Columbia, Madison Street, Convention Center
881 ft · 22 sec
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19
Keep slight right to continue on Madison Street, Convention Place
1843 ft · 55 sec
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20
Turn left onto Madison Street
760 ft · 35 sec · Madison Street
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21
Turn left
9 m · 2 sec
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22
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Ahtanum and Seattle.
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 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.
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.
Mostly Cloudy leaving Ahtanum and 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 Ahtanum to Seattle?
The road trip is about 153.8 miles (247.5 km) and usually takes 02h 33m 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?
Roslyn is a useful midpoint, sitting about 75.3 miles from Ahtanum and 78.5 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 108.2 miles (174.1 km), while the road route adds roughly 45.6 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 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 1:22 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.42 one way or $56.83 round trip. Estimated CO2 is about 48.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Ahtanum and Chance Light Rain near Seattle.
Stop Ideas Near Roslyn
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 Roslyn.
Leavenworth, Washington
Leavenworth
Columbia Station
Stevens Pass, Washington
Flight Path Map
This map shows the direct air route between Ahtanum and Seattle. Straight-line distance: 108.17 mi (174.09 km).
#1 Ahtanum
Census designated place
| Population | 3,601 |
| Coordinates | 46.5595700, -120.6220100 |
| Altitude | 380 |
| 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: 248 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 07m |
| 40 mph (64.37 km/h) | 03h 50m |
| 50 mph (80.47 km/h) | 03h 04m |
| 60 mph (96.56 km/h) | 02h 33m |
| 70 mph (112.65 km/h) | 02h 11m |
| 80 mph (129 km/h) | 01h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $28.42 | $56.83 |
| Mid-grade | $5.57 | $30.23 | $60.46 |
| Premium | $5.77 | $31.34 | $62.67 |
| Diesel | $5.47 | $29.69 | $59.37 |
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.