How far is Spokane Valley, WA from Dayton, WA?
The driving distance from Spokane Valley, WA to Dayton, WA is about 134.2 miles (215.9 km), with a travel time of about 02h 54m by car.
- The straight-line flight distance is about 99.4 miles (160 km).
- For a round trip, plan for roughly 05h 48m 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 54m.
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 Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Spokane Valley and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spokane Valley and Dayton.
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1
Start on North Pines Road
820 ft · 27 sec · North Pines Road
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2
Turn left onto East Montgomery Avenue
47 m · 6 sec · East Montgomery Avenue
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3
Take the ramp slight left
1753 ft · 43 sec
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4
Merge slight left onto Spokane Valley Freeway
10 mi · 12 min · Spokane Valley Freeway
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5
Take the exit slight right toward US 195 South: Colfax, Pullman
56.8 mi · 1 hr 13 min
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6
Turn slight right onto Washtucna
16.6 mi · 22 min
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7
Turn left onto State Route 127
27.1 mi · 36 min · State Route 127
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8
Continue straight
23.1 mi · 29 min
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9
Turn left onto Patit Road
26 m · 4 sec · Patit Road
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10
Arrive at your destination
0 m · 1 sec · Patit Road
Car Route Details
A richer read on the saved driving route between Spokane Valley and Dayton.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 195 South
Take the exit slight right toward US 195 South: Colfax, Pullman
56.8 mi · 01h 13m
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.
Sunny leaving Spokane Valley and Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spokane Valley to Dayton?
The road trip is about 134.2 miles (215.9 km) and usually takes 02h 54m 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?
Colfax is a useful midpoint, sitting about 67 miles from Spokane Valley and 67.2 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 99.4 miles (160 km), while the road route adds roughly 34.8 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 12:42 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.71 one way or $51.42 round trip. Estimated CO2 is about 42 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Spokane Valley and Sunny near Dayton.
Stop Ideas Near Colfax
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 Colfax.
Colfax, Washington
Pullman, Washington
Moscow, Idaho
Lewiston, Idaho
Flight Path Map
This map shows the direct air route between Spokane Valley and Dayton. Straight-line distance: 99.43 mi (160.02 km).
#1 Spokane Valley
The most populous city in Spokane County, Washington.
| Population | 102,893 |
| Coordinates | 47.6732300, -117.2393700 |
| Altitude | 615 |
| Country | United States |
#2 Dayton
Situated in southeastern Washington at an elevation of 1660 feet, this Columbia County seat lies in the foothills of the Blue Mountains along the Touchet River.
| Population | 0 |
| Coordinates | 46.3237500, -117.9724400 |
| Altitude | 506 |
| Country | United States |
End: Dayton (-117.97244, 46.32375)
Estimated Travel Time
Distance: 216 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 28m |
| 40 mph (64.37 km/h) | 03h 21m |
| 50 mph (80.47 km/h) | 02h 40m |
| 60 mph (96.56 km/h) | 02h 14m |
| 70 mph (112.65 km/h) | 01h 54m |
| 80 mph (129 km/h) | 01h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.44 | $25.71 | $51.42 |
| Mid-grade | $5.72 | $27.05 | $54.10 |
| Premium | $5.98 | $28.27 | $56.54 |
| Diesel | $7.29 | $34.49 | $68.98 |
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