How far is Ketchum, ID from Idaho Falls, ID?
The driving distance from Ketchum, ID to Idaho Falls, ID is about 153.1 miles (246.4 km), with a travel time of about 02h 47m by car.
- The straight-line flight distance is about 117.6 miles (189.2 km).
- For a round trip, plan for roughly 05h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 47m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Driving Route Map
The map below follows the saved road route between Ketchum and Idaho Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ketchum and Idaho Falls.
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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
17.3 mi · 26 min · North Main Street
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4
Turn left onto Gannett Picabo Road
7.8 mi · 11 min · Gannett Picabo Road
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5
Continue on Gannett Road
4 mi · 10 min · Gannett Road
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6
At the end of the road, turn left onto Idaho Medal of Honor Highway
9.4 mi · 11 min · Idaho Medal of Honor Highway
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7
Continue on Queens Crown Road
2675 ft · 50 sec · Queens Crown Road
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8
Turn left onto Main Street
2.3 mi · 3 min · Main Street
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9
Continue on Idaho Medal of Honor Highway
41 mi · 47 min · Idaho Medal of Honor Highway
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10
Continue on Grand Avenue
2641 ft · 59 sec · Grand Avenue
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11
Turn right onto Park Road
1997 ft · 30 sec · Park Road
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12
Continue on West Temple Avenue
934 ft · 41 sec · West Temple Avenue
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13
Turn left onto County Road
21 m · 9 sec · County Road
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14
Turn sharp right onto South Front Street
1247 ft · 30 sec · South Front Street
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15
Continue on Idaho Medal of Honor Highway
22.7 mi · 26 min · Idaho Medal of Honor Highway
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16
Keep slight left to continue on Idaho Medal of Honor Highway
19.3 mi · 21 min · Idaho Medal of Honor Highway
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17
Continue on West Arco Highway
19.6 mi · 21 min · West Arco Highway
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18
Continue on West Broadway Street
1.6 km · 1 min · West Broadway Street
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19
Turn right onto South 45th West
2 mi · 4 min · South 45th West
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20
Turn left onto West 33rd South
1.8 mi · 3 min · West 33rd South
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21
Continue on West Sunnyside Road
2.7 mi · 4 min · West Sunnyside Road
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22
Turn right onto Stonebrook Lane
142 m · 15 sec · Stonebrook Lane
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23
Turn right onto West Stone Run Lane
74 m · 16 sec · West Stone Run Lane
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24
Turn left onto Charleston Lane
46 m · 7 sec · Charleston Lane
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25
Arrive at your destination
0 m · 1 sec · Charleston Lane
Car Route Details
A richer read on the saved driving route between Ketchum and Idaho Falls.
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
41 mi · 00h 47m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Ketchum and Sunny near Idaho Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ketchum to Idaho Falls?
The road trip is about 153.1 miles (246.4 km) and usually takes 02h 47m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Arco is a useful midpoint, sitting about 76.4 miles from Ketchum and 76.7 miles from Idaho Falls.
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 35.5 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 12:56 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.02 one way or $42.04 round trip. Estimated CO2 is about 48 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Ketchum and Sunny near Idaho Falls.
Flight Path Map
This map shows the direct air route between Ketchum and Idaho Falls. Straight-line distance: 117.54 mi (189.16 km).
#1 Ketchum
City in Blaine County, Idaho, United States
| Population | 2,855 |
| Coordinates | 43.6807400, -114.3636600 |
| Altitude | 1784 |
| Country | United States |
#2 Idaho Falls
The most populous city in Bonneville County, Idaho.
| Population | 62,888 |
| Coordinates | 43.4665800, -112.0341400 |
| Altitude | 1434 |
| Country | United States |
End: Charleston Lane (-112.034479, 43.46658)
Estimated Travel Time
Distance: 246 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 | $21.02 | $42.04 |
| Mid-grade | $4.23 | $22.85 | $45.69 |
| Premium | $4.55 | $24.56 | $49.13 |
| Diesel | $5.41 | $29.22 | $58.45 |
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 · 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.