How far is Kent, WA from Prosser, WA?
The driving distance from Kent, WA to Prosser, WA is about 189.3 miles (304.7 km), with a travel time of about 03h 40m by car.
- The straight-line flight distance is about 142 miles (228.6 km).
- For a round trip, plan for roughly 07h 21m 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 40m.
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
Driving Route Map
The map below follows the saved road route between Kent and Prosser.
Turn-by-Turn Driving Directions
Step-by-step road directions between Kent and Prosser.
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1
Start on 2nd Avenue South
3 m · 8 sec · 2nd Avenue South
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2
Turn left onto West Gowe Street
1650 ft · 52 sec · West Gowe Street
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3
Continue on East Titus Street
1075 ft · 36 sec · East Titus Street
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4
Turn right onto East Smith Street
602 ft · 20 sec · East Smith Street
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5
Continue on Canyon Drive
1.5 km · 2 min · Canyon Drive
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6
Continue on Southeast 256th Street
1998 ft · 50 sec · Southeast 256th Street
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7
Keep slight right to continue on Southeast Kent Kangley Road
1.9 mi · 3 min · Southeast Kent Kangley Road
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8
Continue on Southeast Kent-Kangley Road
624 ft · 14 sec · Southeast Kent-Kangley Road
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9
Continue on Southeast 272nd Street
2.1 mi · 4 min · Southeast 272nd Street
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10
Turn left onto WA 18 East: North Bend
2183 ft · 55 sec
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11
Merge slight left onto State Route 18
15.7 mi · 20 min · State Route 18
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12
Continue on Snoqualmie Parkway
656 ft · 8 sec · Snoqualmie Parkway
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13
Take the exit slight right toward I 90 East: Spokane
3019 ft · 1 min
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14
Merge slight left
84.5 mi · 1 hr 33 min
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15
Take the exit slight right toward I 82 East, US 97 South: Yakima
37.8 mi · 43 min
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16
Keep slight left
42 mi · 45 min
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17
Take the exit slight right toward Prosser
2128 ft · 53 sec
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18
Turn right onto Gap Road
591 ft · 16 sec · Gap Road
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19
Continue on Wine Country Road
1.2 mi · 3 min · Wine Country Road
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20
Turn right onto 7th Street
1127 ft · 38 sec · 7th Street
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21
Turn left onto Bennett Avenue
22 m · 3 sec · Bennett Avenue
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22
Arrive at your destination
0 m · 1 sec · Bennett Avenue
Car Route Details
A richer read on the saved driving route between Kent and Prosser.
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 East
Merge slight left
84.5 mi · 01h 33m
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 Kent and Slight Chance Light Rain then Mostly Sunny near Prosser.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Kent to Prosser?
The road trip is about 189.3 miles (304.7 km) and usually takes 03h 40m 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 94.5 miles from Kent and 94.8 miles from Prosser.
How much longer is the road route than the straight-line distance?
The direct path is about 142 miles (228.6 km), while the road route adds roughly 47.3 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 9:38 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $34.96 one way or $69.91 round trip. Estimated CO2 is about 59.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Kent and Slight Chance Light Rain then Mostly Sunny near Prosser.
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 Kent and Prosser. Straight-line distance: 142.07 mi (228.64 km).
#1 Kent
The fourth most populous city in King County, Washington.
| Population | 130,676 |
| Coordinates | 47.3809300, -122.2348400 |
| Altitude | 13 |
| Country | United States |
#2 Prosser
County seat of Benton County, Washington
| Population | 6,398 |
| Coordinates | 46.2068000, -119.7689200 |
| Altitude | 203 |
| Country | United States |
End: Prosser (-119.76892, 46.2068)
Estimated Travel Time
Distance: 305 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 18m |
| 40 mph (64.37 km/h) | 04h 43m |
| 50 mph (80.47 km/h) | 03h 47m |
| 60 mph (96.56 km/h) | 03h 09m |
| 70 mph (112.65 km/h) | 02h 42m |
| 80 mph (129 km/h) | 02h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $34.96 | $69.91 |
| Mid-grade | $5.57 | $37.19 | $74.38 |
| Premium | $5.77 | $38.55 | $77.10 |
| Diesel | $5.47 | $36.52 | $73.04 |
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.