How far is Spokane Valley, WA from Grand Mound, WA?
The driving distance from Spokane Valley, WA to Grand Mound, WA is about 346.8 miles (558.2 km), with a travel time of about 06h 33m by car.
- The straight-line flight distance is about 277.6 miles (446.7 km).
- For a round trip, plan for roughly 13h 07m 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 33m.
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 Cloudy
Patchy Fog
Driving Route Map
The map below follows the saved road route between Spokane Valley and Grand Mound.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spokane Valley and Grand Mound.
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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
11.3 mi · 14 min · Spokane Valley Freeway
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5
Keep slight left
56.6 mi · 1 hr 1 min
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6
Keep slight left
195.4 mi · 3 hr 32 min
-
7
Take the exit slight right toward WA 18 West: Auburn
1248 ft · 30 sec
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8
Keep slight left to continue on SR 18 west, Snoqualmie Parkway: Auburn, Tacoma
137 m · 13 sec
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9
Merge slight right onto Snoqualmie Parkway
1780 ft · 25 sec · Snoqualmie Parkway
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10
Continue on State Route 18
26.7 mi · 34 min · State Route 18
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11
Take the exit slight right toward I 5: Seattle, Tacoma
2980 ft · 1 min
-
12
Keep slight left to continue on I 5 South, WA 161: Enchanted Parkway South, Tacoma
3094 ft · 1 min
-
13
Keep slight left to continue on I 5 South: Tacoma
1297 ft · 32 sec
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14
Merge slight left
7.2 mi · 9 min
-
15
Keep slight right
45.4 mi · 54 min
-
16
Take the exit slight right toward US 12 West: Aberdeen, Tenino
2279 ft · 58 sec
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17
Turn right
1108 ft · 31 sec
-
18
Turn left onto Old Highway 99 Southwest
631 ft · 14 sec · Old Highway 99 Southwest
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19
Enter the roundabout and take exit 2 toward Large Round About
25 m · 5 sec · Old Highway 99 Southwest
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20
Exit the rotary onto Old Highway 99 Southwest
1.3 km · 2 min · Old Highway 99 Southwest
-
21
Turn left
30 m · 9 sec
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22
Turn right
89 m · 22 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Spokane Valley and Grand Mound.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Spokane Valley Freeway
Keep slight left
195 mi · 03h 32m
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 Cloudy leaving Spokane Valley and Patchy Fog near Grand Mound.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spokane Valley to Grand Mound?
The road trip is about 346.8 miles (558.2 km) and usually takes 06h 33m 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 173.1 miles from Spokane Valley and 173.8 miles from Grand Mound.
How much longer is the road route than the straight-line distance?
The direct path is about 277.6 miles (446.7 km), while the road route adds roughly 69.2 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 $64.05 one way or $128.10 round trip. Estimated CO2 is about 108.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Spokane Valley and Patchy Fog near Grand Mound.
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 Spokane Valley and Grand Mound. Straight-line distance: 277.55 mi (446.68 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 Grand Mound
City in Thurston County, Washington, United States
| Population | 2,981 |
| Coordinates | 46.7878800, -123.0112500 |
| Altitude | 51 |
| Country | United States |
End: Grand Mound (-123.01125, 46.78788)
Estimated Travel Time
Distance: 558 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 33m |
| 40 mph (64.37 km/h) | 08h 40m |
| 50 mph (80.47 km/h) | 06h 56m |
| 60 mph (96.56 km/h) | 05h 46m |
| 70 mph (112.65 km/h) | 04h 57m |
| 80 mph (129 km/h) | 04h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $64.05 | $128.10 |
| Mid-grade | $5.57 | $68.14 | $136.28 |
| Premium | $5.77 | $70.64 | $141.27 |
| Diesel | $5.47 | $66.92 | $133.83 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.