How far is Ketchum, ID from Nampa, ID?
The driving distance from Ketchum, ID to Nampa, ID is about 172 miles (276.8 km), with a travel time of about 03h 05m by car.
- The straight-line flight distance is about 110.5 miles (177.8 km).
- For a round trip, plan for roughly 06h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 05m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Elmore, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Snow then Snow Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Ketchum and Nampa.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ketchum and Nampa.
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1
Start on the route
27 m · 12 sec
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2
Turn left onto East Sun Valley Road
47 m · 12 sec · East Sun Valley Road
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3
Turn left onto North Main Street
26.2 mi · 39 min · North Main Street
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4
Turn right onto Idaho Medal of Honor Highway
41.7 mi · 48 min · Idaho Medal of Honor Highway
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5
Continue on Sun Valley Highway
40.8 mi · 47 min · Sun Valley Highway
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6
Take the ramp right toward I 84 West, US 20 West, US 26 West, US 30 West: Boise
1266 ft · 31 sec · Idaho Medal of Honor Highway
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7
Merge slight left onto Vietnam Veterans Memorial Highway
56.6 mi · 57 min · Vietnam Veterans Memorial Highway
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8
Take the exit slight right toward I 84 Business: Garrity Boulevard, Idaho Center Boulevard
1901 ft · 53 sec
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9
Turn left onto Garrity Boulevard
1.4 mi · 3 min · Garrity Boulevard
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10
Turn left onto North Kings Road
1.2 km · 1 min · North Kings Road
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11
Enter the roundabout and take exit 2 toward South Kings Road
38 m · 3 sec · South Kings Road
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12
Exit the roundabout onto South Kings Road
1 mi · 2 min · South Kings Road
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13
Turn right onto East Amity Avenue
1.2 mi · 2 min · East Amity Avenue
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14
Continue on Diamond Street
792 ft · 16 sec · Diamond Street
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15
Continue on East Colorado Avenue
1143 ft · 35 sec · East Colorado Avenue
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16
Turn left onto Holly Street
1556 ft · 45 sec · Holly Street
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17
Continue on Sunny Ridge Road
1.6 km · 2 min · Sunny Ridge Road
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18
Turn right onto Stony Meadow Drive
57 m · 8 sec · Stony Meadow Drive
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19
Arrive at your destination
0 m · 1 sec · Stony Meadow Drive
Car Route Details
A richer read on the saved driving route between Ketchum and Nampa.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Vietnam Veterans Memorial Highway
Merge slight left onto Vietnam Veterans Memorial Highway
56.6 mi · 00h 57m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Light Snow then Snow Showers leaving Ketchum and Rain Showers near Nampa.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ketchum to Nampa?
The road trip is about 172 miles (276.8 km) and usually takes 03h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Mountain Home is a useful midpoint, sitting about 85.9 miles from Ketchum and 86.1 miles from Nampa.
How much longer is the road route than the straight-line distance?
The direct path is about 110.5 miles (177.8 km), while the road route adds roughly 61.5 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:48 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.63 one way or $47.26 round trip. Estimated CO2 is about 53.9 kg one way.
What should you check before leaving?
Before you leave, expect Light Snow then Snow Showers around Ketchum and Rain Showers near Nampa.
Stop Ideas Near Mountain Home
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mountain Home.
Boise, Idaho
Nampa, Idaho
Twin Falls, Idaho
Flight Path Map
This map shows the direct air route between Ketchum and Nampa. Straight-line distance: 110.47 mi (177.78 km).
#1 Ketchum
City in Blaine County, Idaho, United States
| Population | 2,855 |
| Coordinates | 43.6807400, -114.3636600 |
| Altitude | 1784 |
| Country | United States |
#2 Nampa
The most populous city in Canyon County, Idaho.
| Population | 99,277 |
| Coordinates | 43.5407200, -116.5634600 |
| Altitude | 767 |
| Country | United States |
End: Stony Meadow Drive (-116.563329, 43.541003)
Estimated Travel Time
Distance: 277 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 43m |
| 40 mph (64.37 km/h) | 04h 18m |
| 50 mph (80.47 km/h) | 03h 26m |
| 60 mph (96.56 km/h) | 02h 52m |
| 70 mph (112.65 km/h) | 02h 27m |
| 80 mph (129 km/h) | 02h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $23.63 | $47.26 |
| Mid-grade | $4.23 | $25.68 | $51.36 |
| Premium | $4.55 | $27.61 | $55.22 |
| Diesel | $5.41 | $32.85 | $65.70 |
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.