How far is Castle Rock, WA from Spokane Valley, WA?
The driving distance from Castle Rock, WA to Spokane Valley, WA is about 371.4 miles (597.7 km), with a travel time of about 06h 16m by car.
- The straight-line flight distance is about 284.1 miles (457.2 km).
- For a round trip, plan for roughly 12h 32m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 16m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Mostly Sunny
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Castle Rock and Spokane Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Spokane Valley.
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1
Start on Front Avenue Southwest
1174 ft · 33 sec · Front Avenue Southwest
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2
Turn right onto Barr Street
45 m · 9 sec · Barr Street
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3
Turn left onto Huntington Avenue North
2742 ft · 1 min · Huntington Avenue North
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4
Continue on Mount Saint Helens Way Northeast
124 m · 13 sec · Mount Saint Helens Way Northeast
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5
Take the ramp left toward I 5 North
2204 ft · 54 sec
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6
Merge slight left
17.8 mi · 19 min
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7
Take the exit slight right toward US 12 East: Morton, Yakima
1534 ft · 38 sec
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8
Turn right
118.7 mi · 2 hr 22 min
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9
Continue straight
17.1 mi · 23 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 right to continue on I 90 East: Vantage, Spokane
3223 ft · 55 sec
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16
Merge slight left
166.3 mi · 2 hr 58 min
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17
Merge slight right
11.3 mi · 14 min
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18
Take the exit slight right toward WA 27
2039 ft · 52 sec
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19
Turn left onto North Pines Road
45 m · 11 sec · North Pines Road
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20
Arrive at your destination
0 m · 1 sec · North Pines Road
Car Route Details
A richer read on the saved driving route between Castle Rock and Spokane Valley.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 East
Merge slight left
166 mi · 02h 58m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Sunny leaving Castle Rock and Partly Cloudy near Spokane Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Spokane Valley?
The road trip is about 371.4 miles (597.7 km) and usually takes 06h 16m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Kittitas is a useful midpoint, sitting about 182 miles from Castle Rock and 189.4 miles from Spokane Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 284.1 miles (457.2 km), while the road route adds roughly 87.3 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 7:30 AM PDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $68.60 one way or $137.21 round trip. Estimated CO2 is about 116.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Castle Rock and Partly Cloudy near Spokane Valley.
Stop Ideas Near Kittitas
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 Kittitas.
Columbia Station
Quincy, Washington
Leavenworth, Washington
Leavenworth
Flight Path Map
This map shows the direct air route between Castle Rock and Spokane Valley. Straight-line distance: 284.07 mi (457.16 km).
#1 Castle Rock
City in Cowlitz County, Washington, United States
| Population | 2,304 |
| Coordinates | 46.2751100, -122.9076100 |
| Altitude | 18 |
| Country | United States |
#2 Spokane Valley
The most populous city in Spokane County, Washington.
| Population | 102,893 |
| Coordinates | 47.6732300, -117.2393700 |
| Altitude | 615 |
| Country | United States |
End: North Pines Road (-117.239528, 47.673234)
Estimated Travel Time
Distance: 598 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 22m |
| 40 mph (64.37 km/h) | 09h 17m |
| 50 mph (80.47 km/h) | 07h 25m |
| 60 mph (96.56 km/h) | 06h 11m |
| 70 mph (112.65 km/h) | 05h 18m |
| 80 mph (129 km/h) | 04h 38m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $68.60 | $137.21 |
| Mid-grade | $5.57 | $72.98 | $145.97 |
| Premium | $5.77 | $75.66 | $151.32 |
| Diesel | $5.47 | $71.67 | $143.34 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.