How far is Caldwell, ID from Sun Valley, ID?
The driving distance from Caldwell, ID to Sun Valley, ID is about 179 miles (288 km), with a travel time of about 03h 31m by car.
- The straight-line flight distance is about 116.8 miles (187.9 km).
- For a round trip, plan for roughly 07h 03m 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 31m.
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.
Mostly Sunny then Slight Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Caldwell and Sun Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Caldwell and Sun Valley.
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1
Start on the route
28 m · 12 sec
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2
Turn left onto Cleveland Boulevard
22 m · 4 sec · Cleveland Boulevard
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3
Turn right
43 m · 13 sec
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4
Turn right
46 m · 13 sec
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5
Turn right onto South 10th Avenue
1.1 km · 2 min · South 10th Avenue
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6
Take the ramp slight right
2822 ft · 1 min
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7
Merge slight left onto Vietnam Veterans Memorial Highway
20.9 mi · 24 min · Vietnam Veterans Memorial Highway
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8
Keep slight right to continue on Vietnam Veterans Memorial Highway
45.9 mi · 44 min · Vietnam Veterans Memorial Highway
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9
Take the exit slight right toward US 20, I 84 Business: Mountain Home, Fairfield
1894 ft · 55 sec · Idaho Medal of Honor Highway
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10
Continue on Idaho Medal of Honor Highway
618 ft · 10 sec · Idaho Medal of Honor Highway
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11
Continue on Sun Valley Highway
40.8 mi · 47 min · Sun Valley Highway
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12
Continue on Idaho Medal of Honor Highway
41.7 mi · 48 min · Idaho Medal of Honor Highway
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13
Turn left
26.2 mi · 39 min
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14
Turn right onto East Sun Valley Road
1.5 mi · 4 min · East Sun Valley Road
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15
Turn right onto Moritz Road
851 ft · 37 sec · Moritz Road
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16
Turn right onto Inn Entry Lane
88 m · 13 sec · Inn Entry Lane
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17
Arrive at your destination
0 m · 1 sec · Inn Entry Lane
Car Route Details
A richer read on the saved driving route between Caldwell and Sun Valley.
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
Keep slight right to continue on Vietnam Veterans Memorial Highway
45.9 mi · 00h 44m
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.
Sunny leaving Caldwell and Mostly Sunny then Slight Chance Snow Showers near Sun Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Caldwell to Sun Valley?
The road trip is about 179 miles (288 km) and usually takes 03h 31m 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 89.4 miles from Caldwell and 89.6 miles from Sun Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 116.8 miles (187.9 km), while the road route adds roughly 62.2 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 9:56 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.56 one way or $49.13 round trip. Estimated CO2 is about 56.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Caldwell and Mostly Sunny then Slight Chance Snow Showers near Sun Valley.
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.
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Flight Path Map
This map shows the direct air route between Caldwell and Sun Valley. Straight-line distance: 116.73 mi (187.86 km).
#1 Caldwell
The most populous city in Canyon County, Idaho.
| Population | 58,481 |
| Coordinates | 43.6629400, -116.6873600 |
| Altitude | 724 |
| Country | United States |
#2 Sun Valley
Resort city in Blaine County, Idaho, United States
| Population | 1,486 |
| Coordinates | 43.6971300, -114.3517200 |
| Altitude | 1812 |
| Country | United States |
End: Sun Valley (-114.35172, 43.69713)
Estimated Travel Time
Distance: 288 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 57m |
| 40 mph (64.37 km/h) | 04h 28m |
| 50 mph (80.47 km/h) | 03h 34m |
| 60 mph (96.56 km/h) | 02h 58m |
| 70 mph (112.65 km/h) | 02h 33m |
| 80 mph (129 km/h) | 02h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $24.56 | $49.13 |
| Mid-grade | $4.23 | $26.70 | $53.40 |
| Premium | $4.55 | $28.70 | $57.41 |
| Diesel | $5.41 | $34.15 | $68.30 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.