How far is Prosser, WA from Seattle, WA?
The driving distance from Prosser, WA to Seattle, WA is about 191.1 miles (307.5 km), with a travel time of about 03h 05m by car.
- The straight-line flight distance is about 154.8 miles (249.2 km).
- For a round trip, plan for roughly 06h 11m 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 03h 05m.
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 Kittitas County, Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Light Rain then Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Prosser and Seattle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Prosser and Seattle.
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1
Start on Bennett Avenue
22 m · 5 sec · Bennett Avenue
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2
Turn right onto 7th Street
1127 ft · 36 sec · 7th Street
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3
Turn left onto Wine Country Road
1.2 mi · 3 min · Wine Country Road
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4
Continue on Gap Road
1302 ft · 38 sec · Gap Road
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5
Take the ramp left
2136 ft · 52 sec
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6
Merge slight left
47.8 mi · 52 min
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7
Continue straight
31 mi · 34 min
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8
Keep slight left to continue on I 90 West
107.5 mi · 2 hr 2 min
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9
Continue on Mount Baker Ridge Tunnel
1.3 mi · 2 min · Mount Baker Ridge Tunnel
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10
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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11
Keep slight left to continue on I 5 North: Vancouver British Columbia, Madison Street, Convention Center
881 ft · 22 sec
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12
Keep slight right to continue on Madison Street, Convention Place
1843 ft · 55 sec
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13
Turn left onto Madison Street
760 ft · 35 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 Prosser 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 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.
Slight Chance Light Rain then Mostly Sunny leaving Prosser and Mostly Sunny near Seattle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Prosser to Seattle?
The road trip is about 191.1 miles (307.5 km) and usually takes 03h 05m 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?
Ellensburg is a useful midpoint, sitting about 95.4 miles from Prosser and 95.6 miles from Seattle.
How much longer is the road route than the straight-line distance?
The direct path is about 154.8 miles (249.2 km), while the road route adds roughly 36.3 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 10:48 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $35.27 one way or $70.54 round trip. Estimated CO2 is about 59.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Light Rain then Mostly Sunny around Prosser and Mostly Sunny near Seattle.
Stop Ideas Near Ellensburg
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 Ellensburg.
Columbia Station
Quincy, Washington
Leavenworth, Washington
Leavenworth
Flight Path Map
This map shows the direct air route between Prosser and Seattle. Straight-line distance: 154.86 mi (249.23 km).
#1 Prosser
County seat of Benton County, Washington
| Population | 6,398 |
| Coordinates | 46.2068000, -119.7689200 |
| Altitude | 203 |
| 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: 308 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 21m |
| 40 mph (64.37 km/h) | 04h 46m |
| 50 mph (80.47 km/h) | 03h 49m |
| 60 mph (96.56 km/h) | 03h 11m |
| 70 mph (112.65 km/h) | 02h 43m |
| 80 mph (129 km/h) | 02h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $35.27 | $70.54 |
| Mid-grade | $5.57 | $37.52 | $75.04 |
| Premium | $5.77 | $38.90 | $77.79 |
| Diesel | $5.47 | $36.85 | $73.70 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.