Origin
Boise, ID
Evening in Boise on Friday
Local time
8:33 PM
MDT
Current temp
62°F
Unavailable
Live forecast
Trip from Boise, ID to Saint Maries, ID
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
7h 51m
Distance
344.3 mi
554 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$55
one way
EV Charging
Unknown
Best Time to Leave
4 AM
7h 42m
★
6 AM
7h 51m
8 AM
8h 10m
10 AM
7h 58m
12 PM
7h 56m
3 PM
7h 59m
5 PM
8h 9m
8 PM
7h 46m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Boise, ID
Wikimedia Commons
Saint Maries, ID
Sami Aksu
Trip Overview
The drive from Boise, ID to Saint Maries, ID covers 344.3 miles and takes about 7h 51m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on South Capitol Boulevard, West Idaho Street, North 15th Street for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $54.56 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
172.1 miles from Boise, ID
A natural place for your longest stop of the day , about 3h 55m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 7h 51m. Total distance: 344.3 miles.
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
7h 51m 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 7h 51m drive with frequent turns across 344.3 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 44 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
South Capitol Boulevard 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 7h 51m, 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 Boise, ID to Saint Maries, ID is straightforward, with well-signed roads and simple exits.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| South Capitol Boulevard | — | — |
| West Idaho Street | — | — |
| North 15th Street | — | — |
| West State Street | — | — |
| SH-55 | — | — |
| North Horseshoe Bend Road | — | — |
| Payette River Scenic Byway | — | — |
| Highway 55 | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
South Capitol Boulevard
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Boise, ID and Saint Maries, ID.
1
Start on the route
118 ft
·
14 sec
·
the route
2
Turn left
128 ft
·
11 sec
3
At the end of the road, turn right onto South Capitol Boulevard
0.2 mi
·
34 sec
·
South Capitol Boulevard
4
Turn left onto West Idaho Street
0.6 mi
·
1 min
·
West Idaho Street
5
Turn right onto North 15th Street
0.2 mi
·
30 sec
·
North 15th Street
6
Turn left onto West State Street
0.9 mi
·
2 min
·
West State Street
7
Continue on West State Street
0.1 mi
·
20 sec
·
West State Street
8
Keep slight left to continue on West State Street
6.1 mi
·
11 min
·
West State Street
9
Take the ramp slight right toward SH-55
512 ft
·
14 sec
·
SH-55
10
Merge slight left onto North Horseshoe Bend Road
8.8 mi
·
11 min
·
North Horseshoe Bend Road
11
Continue on Payette River Scenic Byway
5.9 mi
·
7 min
·
Payette River Scenic Byway
12
Continue on Highway 55
2.4 mi
·
3 min
·
Highway 55
13
Continue on Horseshoe Bend Road
0.4 mi
·
30 sec
·
Horseshoe Bend Road
14
Continue on Highway 55
16 mi
·
24 min
·
Highway 55
15
Continue on Horseshoe Bend Road
18 mi
·
25 min
·
Horseshoe Bend Road
16
Continue on Main Street
46 mi
·
1 hr 1 min
·
Main Street
17
Turn left onto Deinhard Lane
1.6 mi
·
2 min
·
Deinhard Lane
18
Continue on Boydstun Street
0.9 mi
·
1 min
·
Boydstun Street
19
At the end of the road, turn left onto West Lake Street
11 mi
·
16 min
·
West Lake Street
20
Turn right onto North Norris Avenue
76 mi
·
1 hr 26 min
·
North Norris Avenue
21
Turn left onto Johnston Road
2.2 mi
·
5 min
·
Johnston Road
22
At the end of the road, turn left
60 mi
·
1 hr 9 min
23
Take the exit slight right toward US 12 East
0.3 mi
·
57 sec
·
US 12 East
24
Merge slight left
4.1 mi
·
4 min
25
Turn left onto State Highway 3
157 ft
·
7 sec
·
State Highway 3
26
Continue on State Highway 3
6.3 mi
·
11 min
·
State Highway 3
27
Continue on Highway 3
2.4 mi
·
4 min
·
Highway 3
28
Continue on Main Street
0.6 mi
·
1 min
·
Main Street
29
Continue on Highway 3
2.9 mi
·
5 min
·
Highway 3
30
Continue on Main Street
1.2 mi
·
2 min
·
Main Street
31
Continue on Highway 3
15 mi
·
20 min
·
Highway 3
32
Continue on Wyoming Street
0.4 mi
·
56 sec
·
Wyoming Street
33
At the end of the road, turn left onto 2nd Avenue
0.6 mi
·
1 min
·
2nd Avenue
34
Continue on State Highway 8
0.2 mi
·
18 sec
·
State Highway 8
35
Turn right onto State Highway 9
13 mi
·
18 min
·
State Highway 9
36
At the end of the road, turn right onto State Highway 6
7.7 mi
·
10 min
·
State Highway 6
37
Continue on ID-6
9.3 mi
·
16 min
·
ID-6
38
Continue on State Highway 6
8.0 mi
·
14 min
·
State Highway 6
39
Keep slight left to continue on State Highway 6
0.2 mi
·
22 sec
·
State Highway 6
40
Turn straight onto Highway 3 South
14 mi
·
25 min
·
Highway 3 South
41
Continue on East College Avenue
0.1 mi
·
22 sec
·
East College Avenue
42
Turn left onto South 3rd Street
361 ft
·
18 sec
·
South 3rd Street
43
Turn right onto West Jefferson Avenue
49 ft
·
2 sec
·
West Jefferson Avenue
44
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 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 172.1 miles from Boise, ID, or about 3h 55m 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 76 miles or 1h 44m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 172.1 miles or 3h 55m 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 29m
Traffic, exits, and arrival timing usually matter more near Saint Maries, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Boise, 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 Boise, ID
This is one driving day of about 344.3 miles and 7h 51m.
Your first comfortable stop window is around 76 miles from Boise, 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.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 172.1 mi from Boise, ID · 3h 55m into the drive
Mid-route town
Meal stop
172 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 76 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 172.1 miles from Boise, ID, which is a good place for a longer meal and fuel stop.
Arriving in Saint Maries, ID
The final approach into Saint Maries, 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 Saint Maries, 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
$54.56 one way
$109.12 round trip
$4.03/gal
25.4 MPG avg
121 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $57.19 | $114.38 |
| premium | $4.53 | $61.42 | $122.84 |
| diesel | $5.61 | $76.02 | $152.03 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$55
Meals
$25–$50
Total
$80–$105
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 120.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $36 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 103.3 | 1 | $36.15 | $16.53 |
| Efficient EV | 86.1 | 0 | $30.13 | $13.77 |
| EV Truck/SUV | 137.7 | 1 | $48.20 | $22.04 |
Gas CO2
120 kg
EV CO2
40 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
Saint Maries, ID
Evening in Saint Maries on Friday
Local time
7:33 PM
PDT
Current temp
44°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 earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
18 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
7h 51m 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 Boise, ID to Saint Maries, ID covers 344.3 miles and takes about 7h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are South Capitol Boulevard, West Idaho Street, North 15th Street. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 172.1 miles from Boise, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $54.56 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.
The route itself is not hard, but at 7h 51m, 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 Boise, ID to Saint Maries, ID is straightforward, with well-signed roads and simple exits.
The route from Boise, ID to Saint Maries, 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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