How far is Nampa, ID from Salmon, ID?
The driving distance from Nampa, ID to Salmon, ID is about 263.1 miles (423.4 km), with a travel time of about 06h 18m by car.
- The straight-line flight distance is about 173.5 miles (279.3 km).
- For a round trip, plan for roughly 12h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 18m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Custer County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy then Chance Rain Showers
Chance Rain And Snow
Driving Route Map
The map below follows the saved road route between Nampa and Salmon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Nampa and Salmon.
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1
Start on Stony Meadow Drive
56 m · 14 sec · Stony Meadow Drive
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2
Turn left onto Sunny Ridge Road
1 mi · 2 min · Sunny Ridge Road
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3
Continue on Holly Street
1556 ft · 45 sec · Holly Street
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4
Continue on East Bird Avenue
911 ft · 25 sec · East Bird Avenue
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5
Continue on Fern Street
1355 ft · 37 sec · Fern Street
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6
Continue on East Sheridan Avenue
602 ft · 17 sec · East Sheridan Avenue
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7
Continue on Holly Street
1617 ft · 46 sec · Holly Street
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8
Continue on 16th Avenue South
1.1 km · 2 min · 16th Avenue South
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9
Continue on 16th Avenue Overpass
764 ft · 15 sec · 16th Avenue Overpass
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10
Continue on 16th Avenue North
1.2 km · 2 min · 16th Avenue North
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11
Turn right onto Garrity Boulevard
1.8 mi · 3 min · Garrity Boulevard
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12
Take the ramp slight right toward I 84 East: Meridian, Boise
1965 ft · 26 sec
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13
Merge slight left onto Vietnam Veterans Memorial Highway
7.2 mi · 8 min · Vietnam Veterans Memorial Highway
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14
Take the exit slight right toward ID 55: Eagle, McCall
3150 ft · 52 sec
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15
Continue on South Eagle Road
6.8 mi · 10 min · South Eagle Road
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16
Turn right
1.8 mi · 3 min
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17
Turn left onto North Horseshoe Bend Road
8.9 mi · 12 min · North Horseshoe Bend Road
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18
Continue on Payette River Scenic Byway
5.9 mi · 7 min · Payette River Scenic Byway
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19
Continue on Highway 55
2.4 mi · 3 min · Highway 55
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20
Continue on Horseshoe Bend Road
2105 ft · 30 sec · Horseshoe Bend Road
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21
Continue on Highway 55
16 mi · 24 min · Highway 55
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22
Continue on Horseshoe Bend Road
109 m · 8 sec · Horseshoe Bend Road
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23
Turn right onto Banks Lowman Road
33.3 mi · 59 min · Banks Lowman Road
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24
Turn left onto Ponderosa Pine Scenic Route
32.8 mi · 45 min · Ponderosa Pine Scenic Route
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25
Continue on State Highway 21
24.4 mi · 28 min · State Highway 21
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26
Continue on Eva Falls Avenue
1 mi · 2 min · Eva Falls Avenue
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27
At the end of the road, turn left onto Salmon River Scenic Byway
54.9 mi · 1 hr 22 min · Salmon River Scenic Byway
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28
At the end of the road, turn left onto South Salmon River Scenic Byway
59.9 mi · 1 hr 20 min · South Salmon River Scenic Byway
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29
Continue on South Challis Street
2152 ft · 43 sec · South Challis Street
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30
Turn left onto Main Street
2394 ft · 48 sec · Main Street
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31
Turn left onto South Saint Charles Street
63 m · 9 sec · South Saint Charles Street
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32
Arrive at your destination
0 m · 1 sec · South Saint Charles Street
Car Route Details
A richer read on the saved driving route between Nampa and Salmon.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
South Salmon River Scenic Byway
At the end of the road, turn left onto South Salmon River Scenic Byway
59.9 mi · 01h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Mostly Cloudy then Chance Rain Showers leaving Nampa and Chance Rain And Snow near Salmon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Nampa to Salmon?
The road trip is about 263.1 miles (423.4 km) and usually takes 06h 18m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Stanley is a useful midpoint, sitting about 131.4 miles from Nampa and 131.7 miles from Salmon.
How much longer is the road route than the straight-line distance?
The direct path is about 173.5 miles (279.3 km), while the road route adds roughly 89.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.13 one way or $72.25 round trip. Estimated CO2 is about 82.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy then Chance Rain Showers around Nampa and Chance Rain And Snow near Salmon.
Flight Path Map
This map shows the direct air route between Nampa and Salmon. Straight-line distance: 173.56 mi (279.31 km).
#1 Nampa
The most populous city in Canyon County, Idaho.
| Population | 99,277 |
| Coordinates | 43.5407200, -116.5634600 |
| Altitude | 767 |
| Country | United States |
#2 Salmon
City in Lemhi County, Idaho, United States
| Population | 3,169 |
| Coordinates | 45.1757500, -113.8959000 |
| Altitude | 1202 |
| Country | United States |
End: Salmon (-113.8959, 45.17575)
Estimated Travel Time
Distance: 423 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 45m |
| 40 mph (64.37 km/h) | 06h 34m |
| 50 mph (80.47 km/h) | 05h 15m |
| 60 mph (96.56 km/h) | 04h 23m |
| 70 mph (112.65 km/h) | 03h 45m |
| 80 mph (129 km/h) | 03h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $36.13 | $72.25 |
| Mid-grade | $4.23 | $39.26 | $78.53 |
| Premium | $4.55 | $42.21 | $84.43 |
| Diesel | $5.41 | $50.22 | $100.45 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Idaho · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.