Traveling from Black Diamond to Spokane covers 274.1 miles and typically takes about 5 hours and 9 minutes of driving time. Because this is a highway-focused route, it is perfectly manageable as a one-day trip, allowing you to reach your destination without the need for an overnight stay. You should budget approximately $58 for fuel to complete the journey. The path takes you across Washington, transitioning from the western side of the state toward the inland region. It is a straightforward, practical drive that prioritizes efficiency over local wandering, making it an ideal choice if your goal is to reach Spokane quickly and reliably.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
137 miles from Black Diamond, WA
A natural place for your longest stop of the day
, about 2h 37m into the drive
.
Main Roads
Road
Distance
Duration
I 90
253.5 mi
4h 34m
State Route 18
11.6 mi
15m
Maple Valley Black Diamond Road Southeast
5.1 mi
9m
3rd Avenue
1.5 mi
3m
South Lincoln Street
0.4 mi
1m
West 4th Avenue
0.2 mi
<1m
West Freeway Avenue
0.2 mi
<1m
West Main Avenue
0.2 mi
<1m
Longest stretch:
I 90
— 253.5 mi, about 4h 34m
Turn-by-Turn Driving Directions
Step-by-step road directions between Black Diamond, WA and Spokane, WA.
1
Start on Lawson Street
59 ft·3 sec·Lawson Street
2
Turn right onto WA 169
0.6 mi·1 min·3rd Avenue
3
Enter roundabout onto WA 169
60 ft·1 sec·3rd Avenue
4
Continue on WA 169
0.2 mi·29 sec·3rd Avenue
5
Enter roundabout onto WA 169
226 ft·11 sec·3rd Avenue
6
Continue on WA 169
0.7 mi·1 min·3rd Avenue
7
Continue on WA 169
2.0 mi·3 min·Maple Valley Black Diamond Road Southeast
8
Enter roundabout onto WA 169
126 ft·3 sec·Maple Valley Black Diamond Road Southeast
9
Continue on WA 169
0.8 mi·1 min·Maple Valley Black Diamond Road Southeast
10
Enter roundabout onto WA 169
106 ft·2 sec·Maple Valley Black Diamond Road Southeast
11
Continue on WA 169
0.4 mi·41 sec·Maple Valley Black Diamond Road Southeast
12
Enter roundabout onto WA 169
112 ft·2 sec·Maple Valley Black Diamond Road Southeast
13
Continue on WA 169
1.8 mi·3 min·Maple Valley Black Diamond Road Southeast
Use the left lane.
14
Turn left onto Southeast 231st Street
130 ft·2 sec·Southeast 231st Street
15
Take the ramp
0.3 mi·38 sec
Toward WA 18 East: North Bend
16
Merge onto WA 18
12 mi·15 min·State Route 18
Use the straight / slight right lanes.
17
Continue on WA 18
0.1 mi·8 sec·Snoqualmie Parkway
18
Take the exit
0.6 mi·1 min
Toward I 90 East: Spokane
19
Merge onto I 90
252 mi·4 hr 32 min·I 90
Use the straight / slight right lanes.
20
Merge onto I 90; US 2; US 395
1.8 mi·2 min·I 90; US 2; US 395
21
Take the exit
0.2 mi·31 sec
Toward Maple Street, Lincoln Street, Walnut Street
22
Continue on West 5th Avenue
382 ft·12 sec·West 5th Avenue
23
Turn straight onto West Freeway Avenue
0.2 mi·32 sec·West Freeway Avenue
24
Continue on West 4th Avenue
0.2 mi·31 sec·West 4th Avenue
25
Continue on West 4th Avenue
167 ft·4 sec·West 4th Avenue
26
Continue on South Lincoln Street
0.4 mi·1 min·South Lincoln Street
Use the straight / left lanes.
27
Turn left onto West Main Avenue
0.2 mi·34 sec·West Main Avenue
28
Turn right
26 ft·8 sec
29
Turn left onto South Gorge Trail
157 ft·17 sec·South Gorge Trail
30
Arrive at destination
South Gorge Trail
Trip Plan
To make the most of your 5-hour and 9-minute transit, try to avoid peak traffic hours when departing from the Black Diamond area. Since the route includes only one planned stop, ensure your vehicle is fueled up before hitting the long 253.5-mile stretch on I-90 to avoid unnecessary detours. Given the highway-focused nature of the trip, keep a close watch on your speed and stay alert during the extended interstate segments. Flexibility is your biggest advantage here, so feel free to pace your single stop in a way that best suits your energy levels. Planning your fuel stop early in the journey will help you maintain a smooth, uninterrupted rhythm for the remainder of the drive.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 137 miles from Black Diamond, WA, or about 2h 37m into the drive.
The longest continuous stretch on this route runs about 253.5 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 60 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 137 miles or 2h 37m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 12m
Traffic, exits, and arrival timing usually matter more near Spokane, WA than in the middle of the route.
Before You Leave
+
Open the route before leaving Black Diamond, WA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Black Diamond, WA
This is one driving day of about 274.1 miles and 5h 9m.
Your first comfortable stop window is around 60 miles from Black Diamond, WA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 90 for about 253.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 18
5 decision points cluster between mile 0.8 and 19.2 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
0.8 mi into trip|~1m in|WA 169 / 3rd Avenue
Enter roundabout onto WA 169 / 3rd Avenue
Roundabout - know your exit number before entering
5
3.5 mi into trip|~6m in|WA 169 / Maple Valley Black Diamond Road Southeast
Enter roundabout onto WA 169 / Maple Valley Black Diamond Road Southeast
Roundabout - know your exit number before entering
5
4.4 mi into trip|~8m in|WA 169 / Maple Valley Black Diamond Road Southeast
Enter roundabout onto WA 169 / Maple Valley Black Diamond Road Southeast
Roundabout - know your exit number before entering
5
6.9 mi into trip|~13m in|WA 18 / State Route 18
Merge onto WA 18 / State Route 18
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
5
19.2 mi into trip|~30m in|I 90
Merge onto I 90
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Fuel & Cost
Regular Gas
$57.37 one way
$114.73 round trip
$5.32/gal25.4 MPG avg96 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.58
$60.16
$120.32
premium
$5.77
$62.24
$124.49
diesel
$5.61
$60.52
$121.04
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$57
Meals
$25–$50
Total
$82–$107
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 95.9 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
82.2
1
$28.78
$13.16
Efficient EV
68.5
0
$23.98
$10.96
EV Truck/SUV
109.6
1
$38.37
$17.54
Gas CO2
96 kg
EV CO2
32 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Black Diamond, WA
Late night
in Black Diamond on Sunday
Local time
12:34 AM
PDT
Current temp
66°F
Unavailable
Live forecast
Destination
Spokane, WA
Late night
in Spokane on Sunday
Local time
12:34 AM
PDT
Current temp
45°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
21 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 9m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a trip dominated by high-speed transit, as 97% of your travel occurs on major highways. You will begin by navigating the Maple Valley Black Diamond Road Southeast and State Route 18 before settling in for the bulk of the journey on I-90. This interstate serves as the backbone of your trip, featuring a significant 253.5-mile stretch that allows for consistent cruising. While the road is highly efficient, be prepared for the steady, long-distance intensity that comes with such a heavy reliance on the interstate system. This is a purposeful drive where the focus remains squarely on the road ahead.
97% highway — fuel and pacing are the main things to plan.
30 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 253.5 mi on I 90.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 90 and State Route 18. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.8 miles in near WA 169 / 3rd Avenue.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h 9m drive. You will face about 18 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.8 miles (WA 169 / 3rd Avenue): Roundabout - know your exit number before entering; at 3.5 miles (WA 169 / Maple Valley Black Diamond Road Southeast): Roundabout - know your exit number before entering; at 4.4 miles (WA 169 / Maple Valley Black Diamond Road Southeast): Roundabout - know your exit number before entering.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 9m. Total distance: 274.1 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
The longest stretch is about 253.5 miles on I 90. The full list of main roads is in the Roads section above.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 0.8 miles (WA 169 / 3rd Avenue): Roundabout - know your exit number before entering; at 3.5 miles (WA 169 / Maple Valley Black Diamond Road Southeast): Roundabout - know your exit number before entering; at 4.4 miles (WA 169 / Maple Valley Black Diamond Road Southeast): Roundabout - know your exit number before entering.
Not recommended in a single day. At 5.2 hours each way, a round trip means 10.3 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Spokane, WA before the return drive.
