How far is Castle Rock, WA from Spokane, WA?
The driving distance from Castle Rock, WA to Spokane, WA is about 348.7 miles (561.1 km), with a travel time of about 06h 12m by car.
- The straight-line flight distance is about 275.4 miles (443.2 km).
- For a round trip, plan for roughly 12h 25m 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 12m.
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
Driving Route Map
The map below follows the saved road route between Castle Rock and Spokane.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Spokane.
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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
-
7
Take the exit slight right toward US 12 East: Morton, Yakima
1534 ft · 40 sec
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8
Turn right
118.7 mi · 2 hr 22 min
-
9
Continue straight
17.1 mi · 23 min
-
10
Take the exit slight right toward I 82 West, US 97 North: Selah, Ellensburg
1455 ft · 50 sec
-
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
-
15
Keep slight right to continue on I 90 East: Vantage, Spokane
3223 ft · 55 sec
-
16
Merge slight left
166.3 mi · 2 hr 58 min
-
17
Merge slight right
1.8 mi · 2 min
-
18
Take the exit slight right toward Maple Street, Lincoln Street, Walnut Street
1203 ft · 31 sec
-
19
Continue on West 5th Avenue
117 m · 13 sec · West 5th Avenue
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20
Turn straight onto West Freeway Avenue
1151 ft · 33 sec · West Freeway Avenue
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21
Continue on West 4th Avenue
1027 ft · 31 sec · West 4th Avenue
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22
Continue on West 4th Avenue
51 m · 5 sec · West 4th Avenue
-
23
Continue on South Lincoln Street
2275 ft · 1 min · South Lincoln Street
-
24
Turn left onto West Main Avenue
846 ft · 35 sec · West Main Avenue
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25
Turn right
8 m · 9 sec
-
26
Turn left onto South Gorge Trail
48 m · 17 sec · South Gorge Trail
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27
Arrive at your destination
0 m · 1 sec · South Gorge Trail
Car Route Details
A richer read on the saved driving route between Castle Rock and Spokane.
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 Sunny near Spokane.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Spokane?
The road trip is about 348.7 miles (561.1 km) and usually takes 06h 12m 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 177.7 miles from Castle Rock and 170.9 miles from Spokane.
How much longer is the road route than the straight-line distance?
The direct path is about 275.4 miles (443.2 km), while the road route adds roughly 73.3 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 $64.37 one way or $128.73 round trip. Estimated CO2 is about 109.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Castle Rock and Sunny near Spokane.
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. Straight-line distance: 275.39 mi (443.19 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
The second most populous city in Washington.
| Population | 222,050 |
| Coordinates | 47.6596600, -117.4290800 |
| Altitude | 571 |
| Country | United States |
End: West Main Avenue (-117.429081, 47.659029)
Estimated Travel Time
Distance: 561 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 37m |
| 40 mph (64.37 km/h) | 08h 42m |
| 50 mph (80.47 km/h) | 06h 58m |
| 60 mph (96.56 km/h) | 05h 48m |
| 70 mph (112.65 km/h) | 04h 58m |
| 80 mph (129 km/h) | 04h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $64.37 | $128.73 |
| Mid-grade | $5.57 | $68.47 | $136.95 |
| Premium | $5.77 | $70.98 | $141.97 |
| Diesel | $5.47 | $67.24 | $134.49 |
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.