Origin
Saint Maries, ID
Evening in Saint Maries on Friday
Local time
8:44 PM
PDT
Current temp
44°F
Unavailable
Live forecast
Trip from Saint Maries, ID to Caldwell, ID
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
6h 33m
Distance
351.7 mi
566 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$56
one way
EV Charging
Unknown
Best Time to Leave
4 AM
6h 22m
★
6 AM
6h 34m
8 AM
6h 58m
10 AM
6h 42m
12 PM
6h 40m
3 PM
6h 44m
5 PM
6h 57m
8 PM
6h 27m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Saint Maries, ID
Sami Aksu
Caldwell, ID
Wikimedia Commons
Trip Overview
The drive from Saint Maries, ID to Caldwell, ID covers 351.7 miles and takes about 6h 33m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on South 3rd Street, College Avenue, Highway 3 South for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $55.73 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
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
175.8 miles from Saint Maries, ID
A natural place for your longest stop of the day , about 3h 16m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 6h 33m. Total distance: 351.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 33m drive, plan rest stops for pacing.
First-Time Driver
Mostly highway driving (0%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 6h 33m drive with frequent turns across 351.7 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 36 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South 3rd Street is one of the defining roads on this drive.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 6h 33m, endurance matters. Plan breaks every 2-3 hours. The 0 decision points are all manageable with basic attention.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Saint Maries, ID to Caldwell, ID is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| South 3rd Street | — | — |
| College Avenue | — | — |
| Highway 3 South | — | — |
| Highway 6 | — | — |
| ID-6 | — | — |
| Highway 9 | — | — |
| Highway 8 | — | — |
| West 2nd Avenue | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
South 3rd Street
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Maries, ID and Caldwell, ID.
1
Start on West Jefferson Avenue
49 ft
·
8 sec
·
West Jefferson Avenue
2
Turn left onto South 3rd Street
361 ft
·
20 sec
·
South 3rd Street
3
Turn right onto College Avenue
0.1 mi
·
15 sec
·
College Avenue
4
Continue on Highway 3 South
14 mi
·
25 min
·
Highway 3 South
5
Keep slight right to continue on State Highway 6
8.2 mi
·
14 min
·
State Highway 6
6
Continue on ID-6
9.3 mi
·
16 min
·
ID-6
7
Continue on State Highway 6
7.7 mi
·
10 min
·
State Highway 6
8
Turn left onto State Highway 9
13 mi
·
18 min
·
State Highway 9
9
At the end of the road, turn left onto State Highway 8
0.2 mi
·
15 sec
·
State Highway 8
10
Continue on West 2nd Avenue
0.6 mi
·
1 min
·
West 2nd Avenue
11
Turn right onto Wyoming Street
0.4 mi
·
51 sec
·
Wyoming Street
12
Continue on Highway 3
15 mi
·
20 min
·
Highway 3
13
Continue on Main Street
1.2 mi
·
2 min
·
Main Street
14
Continue on Highway 3
2.9 mi
·
5 min
·
Highway 3
15
Continue on Main Street
0.6 mi
·
1 min
·
Main Street
16
Continue on Highway 3
2.4 mi
·
4 min
·
Highway 3
17
Continue on State Highway 3
6.3 mi
·
11 min
·
State Highway 3
18
Continue on State Highway 3
157 ft
·
9 sec
·
State Highway 3
19
Turn right onto Arrow Bridge
4.7 mi
·
5 min
·
Arrow Bridge
20
Merge slight left
60 mi
·
1 hr 10 min
21
Turn right onto Johnston Road
2.2 mi
·
5 min
·
Johnston Road
22
Turn right
76 mi
·
1 hr 26 min
23
Take the exit slight right toward Virginia Street
47 mi
·
1 hr
·
Virginia Street
24
Turn left onto Superior Street
44 mi
·
54 min
·
Superior Street
25
Turn left onto South Main Street
2.1 mi
·
3 min
·
South Main Street
26
Take the exit slight right
0.1 mi
·
15 sec
27
Continue on Northwest 16th Street
0.5 mi
·
47 sec
·
Northwest 16th Street
28
Continue on East Idaho Avenue
0.8 mi
·
1 min
·
East Idaho Avenue
29
Turn left
0.3 mi
·
37 sec
30
Merge slight left onto Old Oregon Trail Highway
28 mi
·
26 min
·
Old Oregon Trail Highway
31
Continue on Idaho Medal of Honor Highway
0.7 mi
·
48 sec
·
Idaho Medal of Honor Highway
32
Take the exit slight right toward City Center, 10th Avenue
0.3 mi
·
42 sec
·
City Center, 10th Avenue
33
Turn right onto North 10th Avenue
0.6 mi
·
1 min
·
North 10th Avenue
34
Turn left
69 ft
·
7 sec
35
Turn right
79 ft
·
6 sec
36
Arrive at your 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 1 meaningful break for fuel, food, and rest.
The halfway point lands around 175.8 miles from Saint Maries, ID, or about 3h 16m into the drive.
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 77 miles or 1h 26m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 175.8 miles or 3h 16m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 26m
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 Saint Maries, 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.
Day 1
Settle into the route from Saint Maries, ID
This is one driving day of about 351.7 miles and 6h 33m.
Your first comfortable stop window is around 77 miles from Saint Maries, ID.
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.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 175.8 mi from Saint Maries, ID · 3h 16m into the drive
Mid-route town
Meal stop
176 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 77 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 175.8 miles from Saint Maries, ID, which is a good place for a longer meal and fuel stop.
Arriving in Caldwell, ID
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.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$55.73 one way
$111.46 round trip
$4.03/gal
25.4 MPG avg
123 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $58.42 | $116.84 |
| premium | $4.53 | $62.74 | $125.48 |
| diesel | $5.61 | $77.65 | $155.30 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$56
Meals
$25–$50
Total
$81–$106
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 123.1 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $37 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 105.5 | 1 | $36.93 | $16.88 |
| Efficient EV | 87.9 | 1 | $30.77 | $14.07 |
| EV Truck/SUV | 140.7 | 1 | $49.24 | $22.51 |
Gas CO2
123 kg
EV CO2
41 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.
Destination
Caldwell, ID
Night in Caldwell on Friday
Local time
9:44 PM
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
18 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
6h 33m 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 Saint Maries, ID to Caldwell, ID covers 351.7 miles and takes about 6h 33m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South 3rd Street, College Avenue, Highway 3 South. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 175.8 miles from Saint Maries, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $55.73 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 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
The route itself is not hard, but at 6h 33m, endurance matters. Plan breaks every 2-3 hours. The 0 decision points are all manageable with basic attention.
This route does not have any notably tricky sections. Most of the drive from Saint Maries, ID to Caldwell, ID is straightforward, with well-signed roads and simple exits.
The route from Saint Maries, ID to Caldwell, ID does not surface many named destination signs beyond the main corridor.
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, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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