Origin
Rathdrum, ID
Late night in Rathdrum on Saturday
Local time
12:13 AM
PDT
Current temp
45°F
Unavailable
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
7h 52m
Distance
423.3 mi
681 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$67
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Rathdrum, ID
Wikimedia Commons
Caldwell, ID
Wikimedia Commons
The drive from Rathdrum, ID to Caldwell, ID covers 423.3 miles and takes about 7h 52m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Old Oregon Trail Highway, Thomas S. Foley Memorial Highway, I 90 for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 215.2 miles on Old Oregon Trail Highway. At current regular gas prices, budget about $67.08 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
211.7 miles from Rathdrum, ID
A natural place for your longest stop of the day , about 4h 6m into the drive .
Weekend Trip
Doable as a same-day drive at 7h 52m. Total distance: 423.3 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 52m drive, plan rest stops for pacing.
Scenic Drive
Turn-heavy local drive route profile.
Expect a 7h 52m drive with frequent turns across 423.3 miles of local and secondary roads.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 87.4 miles in near US 395 / Thomas S. Foley Memorial Highway.
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 21 significant decision points across 423.3 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 87.4 miles (US 395 / Thomas S. Foley Memorial Highway): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 161.1 miles (US 395): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 163.5 miles (US 395 / Lewis and Clark Trail): Highway fork - watch signs carefully. Multiple destination signs - pick the right one.
These are the spots where you need to pay the most attention. Preview them before you drive.
Keep slight right at fork onto US 395 / Thomas S. Foley Memorial Highway toward Ritzville, Pasco
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Take the exit onto US 395 toward I 182 West, US 395 South: Richland, Pendleton
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Keep slight right at fork onto US 395 / Lewis and Clark Trail toward US 395: Kennewick, Pendleton, Columbia Basin College, Tri Cities Airport
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Keep slight left at fork onto US 395 toward US 395 south, US 730: Umatilla, Hermiston, Irrigon
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Take the exit toward City Center, 10th Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Rathdrum, ID and Caldwell, ID, road signs point toward Spokane, Ritzville, Pasco, Pendleton, Columbia Basin College and Tri Cities Airport - among others.
Spokane
Ritzville
Pasco
Pendleton
Columbia Basin College
Tri Cities Airport
Hermiston
Irrigon
| Road | Distance | Duration |
|---|---|---|
| Old Oregon Trail Highway | 215.2 mi | 3h 48m |
| Thomas S. Foley Memorial Highway | 73.7 mi | 1h 19m |
| I 90 | 56.6 mi | 1h |
| Lewis and Clark Trail Highway | 23.7 mi | 26m |
| East Trent Avenue | 12.1 mi | 17m |
| Spokane Valley Freeway | 9.3 mi | 11m |
| West Highway 53 | 8.6 mi | 12m |
| Umatilla-Stanfield Highway | 8.4 mi | 9m |
Step-by-step road directions between Rathdrum, ID and Caldwell, ID.
Start on ID 53
Continue on WA 290
Enter roundabout onto East Trent Avenue
Continue on East Trent Avenue
Turn left onto North Argonne Road
Take the ramp
Merge onto I 90
Keep slight left at fork onto I 90; US 395
Keep slight right at fork onto US 395
Take the exit onto US 395
Merge onto I 182; US 12; US 395
Keep slight right at fork onto US 395
Continue on US 395
Continue on US 395
Take the exit onto US 395
Keep slight left at fork onto US 395
Turn left onto US 395; US 730
Turn right onto US 395
Continue on US 395
Turn left onto East Theater Lane
Turn right onto Northeast 4th Street
Turn left onto US 395
Continue on US 395
Continue on US 395
Take the exit onto US 395
Merge onto I 84; US 30; US 395
Continue on I 84; US 20; US 26; US 30
Take the exit
Turn right onto North 10th Avenue
Turn left
Turn right
Arrive at 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 93 miles or 1h 50m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 211.7 miles or 4h 6m 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 47m
Traffic, exits, and arrival timing usually matter more near Caldwell, ID than in the middle of the route.
Open the route before leaving Rathdrum, 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 Rathdrum, ID
This is one driving day of about 423.3 miles and 7h 52m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 211.7 mi from Rathdrum, ID · 4h 6m into the drive
Mid-route town
Meal stop
212 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 93 miles helps settle the day before fatigue starts building.
The midpoint is around 211.7 miles from Rathdrum, ID, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Old Oregon Trail Highway if your tank is already low. That segment runs about 215.2 miles.
The final approach into Caldwell, 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 Caldwell, ID.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$67.08 one way
$134.16 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $70.31 | $140.62 |
| premium | $4.53 | $75.51 | $151.02 |
| diesel | $5.61 | $93.46 | $186.92 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$67
Meals
$25–$50
Total
$92–$117
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 148.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $44 in charging · 1 stop · 66% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 127 | 1 | $44.45 | $20.32 |
| Efficient EV | 105.8 | 1 | $37.04 | $16.93 |
| EV Truck/SUV | 169.3 | 2 | $59.26 | $27.09 |
Gas CO2
148 kg
EV CO2
50 kg (66% 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.
Current conditions at both ends of the drive.
Origin
Late night in Rathdrum on Saturday
Local time
12:13 AM
PDT
Current temp
45°F
Unavailable
Destination
Late night in Caldwell on Saturday
Local time
1:13 AM
MDT
Current temp
62°F
Unavailable
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.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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