Drive Time
7h 4m
Distance
393.6 mi
Route Type
Turn-heavy local drive
Long day tripSame Day?
Yes, doable
Fuel Cost
$60
one way
The drive from Caldwell, ID to Post Falls, ID covers 393.6 miles and takes about 7h 4m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Cleveland Boulevard, South 10th Avenue, North Illinois Avenue for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $60.33 one way before food or hotel costs.
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
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
196.8 miles from Caldwell, ID
A natural place for your longest stop of the day , about 3h 32m into the drive .
Expect a 7h 4m drive with frequent turns across 393.6 miles of local and secondary roads.
| Road | Distance | Duration |
|---|---|---|
| Cleveland Boulevard | Unavailable | Refreshing |
| South 10th Avenue | Unavailable | Refreshing |
| North Illinois Avenue | Unavailable | Refreshing |
| Vietnam Veterans Memorial Highway | Unavailable | Refreshing |
| US 395 North | Unavailable | Refreshing |
| Umatilla-Stanfield Highway | Unavailable | Refreshing |
| South Main Street | Unavailable | Refreshing |
| Southeast 4th Street | Unavailable | Refreshing |
Per-road distance and duration are being refreshed from OSRM for this route.
Step-by-step road directions between Caldwell, ID and Post Falls, ID.
Start on the route
Turn left onto Cleveland Boulevard
Turn right
Turn right
Turn right onto South 10th Avenue
Continue on North Illinois Avenue
Take the ramp left
Merge slight left onto Vietnam Veterans Memorial Highway
Take the exit slight right toward US 395 North: Stanfield, Hermiston
Continue on Umatilla-Stanfield Highway
Continue on South Main Street
Continue on Umatilla-Stanfield Highway
Turn right onto Southeast 4th Street
Turn left onto East Theater Lane
Turn right onto North 1st Street
Continue on Umatilla-Stanfield Highway
Turn left onto Columbia River Highway
Take the exit right toward I 82 West, US 395 North: Kennewick, Yakima
Merge slight left onto McNary Highway
Keep slight right to continue on Lewis and Clark Trail Highway
Continue on South US 395
Continue on Lewis and Clark Trail
Take the exit slight right toward US 395 north, SR 397 south (Oregon Street): Spokane, Finley
Keep slight left to continue on US 395
Keep slight right to continue on US 395 North: Spokane
Merge slight right
Take the exit slight right toward I 90 Business
Turn left onto North Spokane Street
Turn left onto West 10th Avenue
Arrive at your destination
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
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 87 miles or 1h 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 196.8 miles or 3h 32m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 6h
Traffic, exits, and arrival timing usually matter more near Post Falls, ID than in the middle of the route.
Open the route before leaving Caldwell, ID 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.
Pick one backup stop option before the midpoint in case traffic changes your pacing.
Day 1
Settle into the route from Caldwell, ID
This is one driving day of about 393.6 miles and 7h 4m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 196.8 mi from Caldwell, ID · 3h 32m into the drive
Late stop town
Meal stop
197 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 87 miles helps settle the day before fatigue starts building.
The midpoint is around 196.8 miles from Caldwell, ID, which is a good place for a longer meal and fuel stop.
The final approach into Post Falls, ID usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Post Falls, ID.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$60.33 one way
$120.65 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.23 | $65.56 | $131.13 |
| premium | $4.55 | $70.49 | $140.98 |
| diesel | $5.41 | $83.86 | $167.73 |
Estimated Trip Cost (one way, 1 person)
Fuel
$60
Meals (1 day)
$25–$50
Total
$85–$110
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 137.7 kg one way.
Travel Intel
Current conditions at both ends of the drive. If you're planning ahead, check the forecast closer to your travel date.
Origin
Late night in Caldwell on Saturday
Local time
2:36 AM
MDT
Current temp
39°F
Forecast unavailable right now
Destination
Late night in Post Falls on Saturday
Local time
1:36 AM
PDT
Current temp
33°F
Forecast unavailable right now
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
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Explore more options from Caldwell, ID or browse trips ending in Post Falls, ID.
Looking for more statewide routes? Browse ID road trips.
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