Origin
Boise, ID
Late night in Boise on Saturday
Local time
12:23 AM
MDT
Current temp
62°F
Unavailable
Live forecast
Trip from Boise, ID to Challis, ID
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
4h 44m
Distance
190.7 mi
307 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$30
one way
EV Charging
Unknown
Best Time to Leave
4 AM
4h 31m
★
6 AM
4h 45m
8 AM
5h 12m
10 AM
4h 54m
12 PM
4h 51m
3 PM
4h 55m
5 PM
5h 10m
8 PM
4h 37m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Boise, ID
Wikimedia Commons
Trip Overview
The drive from Boise, ID to Challis, ID covers 190.7 miles and takes about 4h 44m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Salmon River Scenic Byway, Banks Lowman Road, Ponderosa Pine Scenic Route for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 54.9 miles on Salmon River Scenic Byway. At current regular gas prices, budget about $30.22 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
95.4 miles from Boise, ID
A natural place for your longest stop of the day , about 2h 30m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 4h 44m. Total distance: 190.7 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 44m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (22%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 4h 44m drive with frequent turns across 190.7 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 25 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Salmon River Scenic Byway is the longest continuous segment at about 54.9 miles.
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. The trickiest moment comes early in the drive.
Driving Effort
4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 4h 44m drive. You will face about 15 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start: Navigation decision point; near the start (South Capitol Boulevard): Complex interchange - multiple decisions in a short stretch; at 0.2 miles (West Idaho Street): Lane positioning matters here.
Critical Maneuvers
5 of 15 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0 mi into trip
|
~0m in
Turn left
Navigation decision point
6
0 mi into trip
|
~0m in
|
South Capitol Boulevard
At end of road, turn right onto South Capitol Boulevard
Complex interchange - multiple decisions in a short stretch
5
0.2 mi into trip
|
~0m in
|
West Idaho Street
Turn left onto West Idaho Street
Lane positioning matters here
Use the left / straight lanes.
6
0.8 mi into trip
|
~2m in
|
North 15th Street
Turn right onto North 15th Street
Lane positioning matters here
Use the straight / left / right lanes.
6
2 mi into trip
|
~5m in
|
West State Street
Keep slight left at fork onto West State Street
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Salmon River Scenic Byway | 54.9 mi | 1h 21m |
| Banks Lowman Road | 33.3 mi | 58m |
| Ponderosa Pine Scenic Route | 32.8 mi | 44m |
| State Highway 21 | 24.4 mi | 28m |
| Highway 55 | 18.4 mi | 27m |
| North Horseshoe Bend Road | 8.8 mi | 11m |
| West State Street | 7 mi | 13m |
| Payette River Scenic Byway | 5.9 mi | 7m |
Longest stretch:
Salmon River Scenic Byway
— 54.9 mi, about 1h 21m
Turn-by-Turn Driving Directions
Step-by-step road directions between Boise, ID and Challis, ID.
1
Start on this road
118 ft
·
14 sec
·
this road
2
Turn left
126 ft
·
11 sec
3
At end of road, turn right onto South Capitol Boulevard
0.2 mi
·
33 sec
·
South Capitol Boulevard
4
Turn left onto West Idaho Street
0.6 mi
·
1 min
·
West Idaho Street
Use the left / straight lanes.
5
Turn right onto North 15th Street
0.2 mi
·
29 sec
·
North 15th Street
Use the straight / left / right lanes.
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 at fork onto West State Street
6.1 mi
·
11 min
·
West State Street
Use the straight lane.
9
Take the ramp
513 ft
·
14 sec
Toward SH-55
10
Merge onto ID 55
8.8 mi
·
11 min
·
North Horseshoe Bend Road
11
Continue on ID 55
5.9 mi
·
7 min
·
Payette River Scenic Byway
12
Continue on ID 55
2.4 mi
·
3 min
·
Highway 55
13
Continue on ID 55
0.4 mi
·
29 sec
·
Horseshoe Bend Road
14
Continue on ID 55
16 mi
·
24 min
·
Highway 55
15
Continue on ID 55
357 ft
·
8 sec
·
Horseshoe Bend Road
16
Turn right onto Banks Lowman Road
33 mi
·
58 min
·
Banks Lowman Road
17
Turn left onto ID 21
33 mi
·
44 min
·
Ponderosa Pine Scenic Route
18
Continue on ID 21
24 mi
·
28 min
·
State Highway 21
19
Continue on ID 21
1.0 mi
·
2 min
·
Eva Falls Avenue
20
At end of road, turn left onto ID 75
55 mi
·
1 hr 21 min
·
Salmon River Scenic Byway
21
At end of road, turn left onto US 93
2.1 mi
·
3 min
·
South Salmon River Scenic Byway
22
Turn left onto East Valley Avenue
0.4 mi
·
1 min
·
East Valley Avenue
23
Turn right onto South 7th Street
330 ft
·
16 sec
·
South 7th Street
24
Turn right
135 ft
·
9 sec
25
Arrive at destination
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 95.4 miles from Boise, ID, or about 2h 30m into the drive.
The longest continuous stretch on this route runs about 54.9 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 42 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 95.4 miles or 2h 30m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 52m
Traffic, exits, and arrival timing usually matter more near Challis, 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.
Day 1
Settle into the route from Boise, ID
This is one driving day of about 190.7 miles and 4h 44m.
Your first comfortable stop window is around 42 miles from Boise, 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.
The longest stretch is on Salmon River Scenic Byway for about 54.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 95.4 mi from Boise, ID · 2h 30m into the drive
Mid-route town
Meal stop
95 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 42 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 95.4 miles from Boise, ID, which is a good place for a longer meal and fuel stop.
Arriving in Challis, ID
The final approach into Challis, 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 Challis, 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
$30.22 one way
$60.44 round trip
$4.03/gal
25.4 MPG avg
67 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $31.68 | $63.35 |
| premium | $4.53 | $34.02 | $68.04 |
| diesel | $5.61 | $42.10 | $84.21 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$30
Meals
$25–$50
Total
$55–$80
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 66.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $20 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 57.2 | 0 | $20.02 | $9.15 |
| Efficient EV | 47.7 | 0 | $16.69 | $7.63 |
| EV Truck/SUV | 76.3 | 0 | $26.70 | $12.20 |
Gas CO2
67 kg
EV CO2
22 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
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
Challis, ID
Late night in Challis on Saturday
Local time
12:23 AM
MDT
Current temp
32°F
Unavailable
Live forecast
63°F
Cascade, ID
95 mi in
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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
30 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
4h 44m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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 Challis, ID covers 190.7 miles and takes about 4h 44m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Salmon River Scenic Byway, Banks Lowman Road, Ponderosa Pine Scenic Route. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 95.4 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 $30.22 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
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.
This is a straightforward 4h 44m drive. You will face about 15 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: near the start: Navigation decision point; near the start (South Capitol Boulevard): Complex interchange - multiple decisions in a short stretch; at 0.2 miles (West Idaho Street): Lane positioning matters here.
The route from Boise, ID to Challis, 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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