How far is Idaho Falls, ID from Ketchum, ID?
The driving distance from Idaho Falls, ID to Ketchum, ID is about 153.2 miles (246.6 km), with a travel time of about 03h 12m by car.
- The straight-line flight distance is about 117.6 miles (189.2 km).
- For a round trip, plan for roughly 06h 25m 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 12m.
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 Butte County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Idaho Falls and Ketchum.
Turn-by-Turn Driving Directions
Step-by-step road directions between Idaho Falls and Ketchum.
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1
Start on Charleston Lane
46 m · 9 sec · Charleston Lane
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2
Turn right onto West Stone Run Lane
74 m · 16 sec · West Stone Run Lane
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3
Turn left onto Stonebrook Lane
142 m · 20 sec · Stonebrook Lane
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4
Turn left onto West Sunnyside Road
2.7 mi · 4 min · West Sunnyside Road
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5
Continue on West 33rd South
1.8 mi · 3 min · West 33rd South
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6
Turn right onto South 45th West
2 mi · 4 min · South 45th West
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7
Turn left onto West Broadway Street
1.6 km · 1 min · West Broadway Street
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8
Continue on West Arco Highway
19.6 mi · 21 min · West Arco Highway
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9
Continue on Idaho Medal of Honor Highway
42 mi · 47 min · Idaho Medal of Honor Highway
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10
Continue on South Front Street
2808 ft · 1 min · South Front Street
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11
Turn left onto West Grand Avenue
1 mi · 2 min · West Grand Avenue
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12
Continue on Idaho Medal of Honor Highway
41 mi · 47 min · Idaho Medal of Honor Highway
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13
Continue on North Main Street
2.3 mi · 3 min · North Main Street
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14
Turn right onto Queens Crown Road
2675 ft · 45 sec · Queens Crown Road
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15
Continue on Idaho Medal of Honor Highway
9.4 mi · 11 min · Idaho Medal of Honor Highway
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16
Turn right onto Gannett Road
4 mi · 10 min · Gannett Road
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17
Continue on Gannett Picabo Road
7.8 mi · 11 min · Gannett Picabo Road
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18
Turn straight onto Main Street
17.3 mi · 26 min · Main Street
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19
Turn right onto East Sun Valley Road
47 m · 6 sec · East Sun Valley Road
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20
Turn right
27 m · 6 sec
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21
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Idaho Falls and Ketchum.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Idaho Medal of Honor Highway
Continue on Idaho Medal of Honor Highway
42 mi · 00h 47m
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 Idaho Falls and Sunny near Ketchum.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Idaho Falls to Ketchum?
The road trip is about 153.2 miles (246.6 km) and usually takes 03h 12m 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?
Arco is a useful midpoint, sitting about 76.5 miles from Idaho Falls and 76.7 miles from Ketchum.
How much longer is the road route than the straight-line distance?
The direct path is about 117.6 miles (189.2 km), while the road route adds roughly 35.6 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 10:34 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.06 one way or $42.12 round trip. Estimated CO2 is about 48.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Idaho Falls and Sunny near Ketchum.
Flight Path Map
This map shows the direct air route between Idaho Falls and Ketchum. Straight-line distance: 117.54 mi (189.16 km).
#1 Idaho Falls
The most populous city in Bonneville County, Idaho.
| Population | 62,888 |
| Coordinates | 43.4665800, -112.0341400 |
| Altitude | 1434 |
| Country | United States |
#2 Ketchum
City in Blaine County, Idaho, United States
| Population | 2,855 |
| Coordinates | 43.6807400, -114.3636600 |
| Altitude | 1784 |
| Country | United States |
End: Ketchum (-114.36366, 43.68074)
Estimated Travel Time
Distance: 247 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 06m |
| 40 mph (64.37 km/h) | 03h 49m |
| 50 mph (80.47 km/h) | 03h 03m |
| 60 mph (96.56 km/h) | 02h 33m |
| 70 mph (112.65 km/h) | 02h 11m |
| 80 mph (129 km/h) | 01h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $21.06 | $42.12 |
| Mid-grade | $4.23 | $22.89 | $45.78 |
| Premium | $4.55 | $24.61 | $49.22 |
| Diesel | $5.41 | $29.28 | $58.56 |
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 · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.