How far is Mill Plain, WA from Spokane Valley, WA?
The driving distance from Mill Plain, WA to Spokane Valley, WA is about 363.4 miles (584.9 km), with a travel time of about 05h 47m by car.
- The straight-line flight distance is about 285.9 miles (460.1 km).
- For a round trip, plan for roughly 11h 34m 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 05h 47m.
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 North Dakota
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain
Rain
Driving Route Map
The map below follows the saved road route between Mill Plain and Spokane Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mill Plain and Spokane Valley.
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1
Start on the route
559 ft · 36 sec
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2
Turn left onto Northeast 29th Street
61 m · 14 sec · Northeast 29th Street
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3
Turn left onto Northeast 172nd Avenue
1.9 mi · 4 min · Northeast 172nd Avenue
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4
Turn right onto Southeast Mill Plain Boulevard
2309 ft · 53 sec · Southeast Mill Plain Boulevard
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5
Turn left onto Southeast 164th Avenue
1.7 mi · 4 min · Southeast 164th Avenue
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6
Take the ramp left toward WA 14 East: Camas
2651 ft · 57 sec
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7
Merge slight left onto Southeast Lewis and Clark Highway
3.1 mi · 4 min · Southeast Lewis and Clark Highway
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8
Continue on Lewis and Clark Highway
3.9 mi · 5 min · Lewis and Clark Highway
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9
Enter the roundabout and take exit 1 toward Lewis and Clark Highway
26 m · 1 sec · Lewis and Clark Highway
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10
Exit the roundabout onto Lewis and Clark Highway
1.5 km · 1 min · Lewis and Clark Highway
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11
Enter the roundabout and take exit 2 toward Southeast Lewis and Clark Highway
31 m · 2 sec · Southeast Lewis and Clark Highway
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12
Exit the roundabout onto Southeast Lewis and Clark Highway
4.5 mi · 6 min · Southeast Lewis and Clark Highway
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13
Continue on Evergreen Highway
19.9 mi · 28 min · Evergreen Highway
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14
Turn right onto Bridge of the Gods
1 km · 3 min · Bridge of the Gods
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15
Turn right onto Wa-Na-Pa Street
1.3 mi · 3 min · Wa-Na-Pa Street
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16
Continue on Frontage Road
871 ft · 20 sec · Frontage Road
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17
Take the ramp left toward I 84 East
1487 ft · 20 sec
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18
Merge slight left onto Columbia River Highway
122.2 mi · 2 hr 14 min · Columbia River Highway
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19
Continue on Old Oregon Trail Highway
11.4 mi · 12 min · Old Oregon Trail Highway
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20
Take the exit slight right toward I 82 West: Hermiston, Umatilla
1.3 km · 2 min
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21
Continue on McNary Highway
29.9 mi · 33 min · McNary Highway
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22
Keep slight right to continue on Lewis and Clark Trail Highway
3.3 mi · 5 min · Lewis and Clark Trail Highway
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23
Continue on South US 395
1.1 mi · 2 min · South US 395
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24
Continue on Lewis and Clark Trail
4.9 mi · 7 min · Lewis and Clark Trail
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25
Take the exit slight right toward US 395 north, SR 397 south (Oregon Street): Spokane, Finley
859 ft · 21 sec
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26
Keep slight left to continue on US 395
1416 ft · 35 sec
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27
Keep slight right to continue on US 395 North: Spokane
130.7 mi · 2 hr 21 min
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28
Merge slight right
11.3 mi · 14 min
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29
Take the exit slight right toward WA 27
2039 ft · 52 sec
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30
Turn left onto North Pines Road
45 m · 11 sec · North Pines Road
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31
Arrive at your destination
0 m · 1 sec · North Pines Road
Car Route Details
A richer read on the saved driving route between Mill Plain and Spokane Valley.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US 395 North
Keep slight right to continue on US 395 North: Spokane
131 mi · 02h 21m
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.
Light Rain leaving Mill Plain and Rain near Spokane Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mill Plain to Spokane Valley?
The road trip is about 363.4 miles (584.9 km) and usually takes 05h 47m 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?
Finley is a useful midpoint, sitting about 177.6 miles from Mill Plain and 185.8 miles from Spokane Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 285.9 miles (460.1 km), while the road route adds roughly 77.5 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 5:26 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $67.14 one way or $134.28 round trip. Estimated CO2 is about 114 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain around Mill Plain and Rain near Spokane Valley.
Stop Ideas Near Finley
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 Finley.
Pasco Intermodal Train Station
Walla Walla, WA
Pendleton, Oregon
Moses Lake, Washington
Flight Path Map
This map shows the direct air route between Mill Plain and Spokane Valley. Straight-line distance: 285.87 mi (460.06 km).
#1 Mill Plain
Census designated place
| Population | 7,874 |
| Coordinates | 45.6429000, -122.4939800 |
| Altitude | 84 |
| 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: 585 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 12h 06m |
| 40 mph (64.37 km/h) | 09h 05m |
| 50 mph (80.47 km/h) | 07h 16m |
| 60 mph (96.56 km/h) | 06h 03m |
| 70 mph (112.65 km/h) | 05h 11m |
| 80 mph (129 km/h) | 04h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $67.14 | $134.28 |
| Mid-grade | $5.57 | $71.42 | $142.85 |
| Premium | $5.77 | $74.04 | $148.08 |
| Diesel | $5.47 | $70.14 | $140.28 |
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.