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
.
Who Is This Route For?
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 with national parks nearby.
Drive Character
Expect a 7h 52m drive with frequent turns across 423.3 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 32 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Old Oregon Trail Highway is the longest continuous segment at about 215.2 miles.
How Hard Is This Drive?
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.
Driving Effort7/10
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.
Critical Maneuvers
5 of 21 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
6
87.4 mi into trip|~1h 44m in|US 395 / Thomas S. Foley Memorial Highway
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
Toward Ritzville, Pasco
5
161.1 mi into trip|~3h 3m in|US 395
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
Toward I 182 West, US 395 South: Richland, Pend...
6
163.5 mi into trip|~3h 7m in|US 395 / Lewis and Clark Trail
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
Toward US 395: Kennewick, Pendleton, Columbia B...
7
192.3 mi into trip|~3h 42m in|US 395
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
Toward US 395 south, US 730: Umatilla, Hermisto...
8
422.3 mi into trip|~7h 49m in
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
Use the straight / slight right lanes.
Exit 28
Toward City Center, 10th Avenue
Towns Mentioned on Route Signs
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
21.2 mi in|~31m
Ritzville
87.4 mi in|~1h 44m|via US 395
Pasco
87.4 mi in|~1h 44m|via US 395
Pendleton
161.1 mi in|~3h 3m|via US 395
Columbia Basin College
163.5 mi in|~3h 7m|via US 395
Tri Cities Airport
163.5 mi in|~3h 7m|via US 395
Hermiston
192.2 mi in|~3h 41m|via US 395
Irrigon
192.2 mi in|~3h 41m|via US 395
Main Roads
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
Longest stretch:
Old Oregon Trail Highway
— 215.2 mi, about 3h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Rathdrum, ID and Caldwell, ID.
1
Start on ID 53
8.6 mi·12 min·West Highway 53
2
Continue on WA 290
5.9 mi·8 min·East Trent Avenue
3
Enter roundabout onto East Trent Avenue
88 ft·1 sec·East Trent Avenue
4
Continue on East Trent Avenue
6.2 mi·9 min·East Trent Avenue
5
Turn left onto North Argonne Road
0.5 mi·1 min·North Argonne Road
6
Take the ramp
0.4 mi·45 sec
Toward Spokane
7
Merge onto I 90
9.3 mi·11 min·Spokane Valley Freeway
8
Keep slight left at fork onto I 90; US 395
57 mi·1 hr·I 90; US 395
9
Keep slight right at fork onto US 395
74 mi·1 hr 19 min·Thomas S. Foley Memorial Highway
Toward Ritzville, Pasco
10
Take the exit onto US 395
0.6 mi·1 min·US 395
Toward I 182 West, US 395 South: Richland, Pendleton
11
Merge onto I 182; US 12; US 395
1.9 mi·2 min·Lewis and Clark Trail
12
Keep slight right at fork onto US 395
3.8 mi·5 min·Lewis and Clark Trail
Toward US 395: Kennewick, Pendleton, Columbia Basin College, Tri Cities Airport
13
Continue on US 395
1.1 mi·2 min·North US 395
14
Continue on US 395
24 mi·26 min·Lewis and Clark Trail Highway
15
Take the exit onto US 395
0.2 mi·22 sec·US 395
Toward US 395 south, US 730: Umatilla, Hermiston, Irrigon
16
Keep slight left at fork onto US 395
171 ft·10 sec·US 395
Toward US 395 south, US 730: Umatilla, Hermiston, Irrigon
17
Turn left onto US 395; US 730
0.8 mi·57 sec·Columbia River Highway
18
Turn right onto US 395
3.8 mi·4 min·Umatilla-Stanfield Highway
19
Continue on US 395
0.5 mi·44 sec·North 1st Street
20
Turn left onto East Theater Lane
0.3 mi·40 sec·East Theater Lane
21
Turn right onto Northeast 4th Street
1.6 mi·2 min·Northeast 4th Street
22
Turn left onto US 395
3.2 mi·3 min·Umatilla-Stanfield Highway
23
Continue on US 395
2.0 mi·2 min·North Main Street
24
Continue on US 395
1.4 mi·1 min·Umatilla-Stanfield Highway
25
Take the exit onto US 395
0.5 mi·1 min·US 395
Toward US 395 North: Stanfield
26
Merge onto I 84; US 30; US 395
215 mi·3 hr 48 min·Old Oregon Trail Highway
Use the straight / slight right lanes.
27
Continue on I 84; US 20; US 26; US 30
0.7 mi·47 sec·Idaho Medal of Honor Highway
28
Take the exit
0.3 mi·41 sec
Exit 28Toward City Center, 10th AvenueUse the straight / slight right lanes.
29
Turn right onto North 10th Avenue
0.6 mi·1 min·North 10th Avenue
30
Turn left
68 ft·6 sec
31
Turn right
79 ft·5 sec
32
Arrive at destination
Trip Plan
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.
You can normally do this drive in one day.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 211.7 miles from Rathdrum, ID, or about 4h 6m into the drive.
The longest continuous stretch on this route runs about 215.2 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 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.
Before You Leave
+
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.
Your first comfortable stop window is around 93 miles from Rathdrum, ID.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Old Oregon Trail Highway for about 215.2 miles.
Where to Stop
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
Station data from NREL Alternative Fuel Stations database.
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.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Rathdrum, ID
Late night
in Rathdrum on Saturday
Local time
2:04 AM
PDT
Current temp
45°F
Unavailable
Live forecast
Destination
Caldwell, ID
Late night
in Caldwell on Saturday
Local time
3:04 AM
MDT
Current temp
62°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
1 hour later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
17 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
7h 52m on the road
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.
Frequently Asked Questions
The drive from Rathdrum, ID to Caldwell, ID covers 423.3 miles and takes about 7h 52m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Old Oregon Trail Highway, Thomas S. Foley Memorial Highway, I 90. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 211.7 miles from Rathdrum, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $67.08 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
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.
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.
Between Rathdrum, ID and Caldwell, ID, road signs point toward Spokane, Ritzville, Pasco, Pendleton, Columbia Basin College and Tri Cities Airport - among others.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.
