How far is Twin Falls, ID from Challis, ID?
The driving distance from Twin Falls, ID to Challis, ID is about 189 miles (304.1 km), with a travel time of about 04h 01m by car.
- The straight-line flight distance is about 134.7 miles (216.7 km).
- For a round trip, plan for roughly 08h 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 04h 01m.
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.
Mostly Sunny then Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Twin Falls and Challis.
Turn-by-Turn Driving Directions
Step-by-step road directions between Twin Falls and Challis.
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1
Start on Shoshone Street East
25 m · 4 sec · Shoshone Street East
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2
Turn right onto 11th Avenue East
69 m · 17 sec · 11th Avenue East
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3
Turn sharp right onto Addison Avenue
106 m · 18 sec · Addison Avenue
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4
Turn left onto Blue Lakes Boulevard North
2 mi · 4 min · Blue Lakes Boulevard North
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5
Continue on North 3000 East Road
3.7 mi · 5 min · North 3000 East Road
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6
Turn straight
20.4 mi · 25 min
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7
Turn right
40.4 mi · 1 hr
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8
Continue on Idaho Medal of Honor Highway
41 mi · 47 min · Idaho Medal of Honor Highway
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9
Continue on Grand Avenue
1.3 km · 2 min · Grand Avenue
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10
Turn left onto North Water Street
122 m · 8 sec · North Water Street
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11
Turn right onto West Lost River Avenue
979 ft · 20 sec · West Lost River Avenue
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12
At the end of the road, turn left onto North Front Street
25.7 mi · 31 min · North Front Street
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13
Continue on East Custer Street
54 mi · 1 hr 5 min · East Custer Street
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14
Turn left onto East Valley Avenue
2264 ft · 2 min · East Valley Avenue
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15
Turn right onto South 7th Street
101 m · 16 sec · South 7th Street
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16
Turn right
41 m · 10 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Twin Falls and Challis.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
East Custer Street
Continue on East Custer Street
54 mi · 01h 05m
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 Twin Falls and Mostly Sunny then Chance Snow Showers near Challis.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Twin Falls to Challis?
The road trip is about 189 miles (304.1 km) and usually takes 04h 01m 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 94.4 miles from Twin Falls and 94.6 miles from Challis.
How much longer is the road route than the straight-line distance?
The direct path is about 134.7 miles (216.7 km), while the road route adds roughly 54.3 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 8:56 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.97 one way or $51.93 round trip. Estimated CO2 is about 59.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Twin Falls and Mostly Sunny then Chance Snow Showers near Challis.
Flight Path Map
This map shows the direct air route between Twin Falls and Challis. Straight-line distance: 134.64 mi (216.69 km).
#1 Twin Falls
The most populous city in Twin Falls County, Idaho.
| Population | 50,197 |
| Coordinates | 42.5629700, -114.4608700 |
| Altitude | 1138 |
| Country | United States |
#2 Challis
City in Custer County, Idaho, United States
| Population | 1,091 |
| Coordinates | 44.5046400, -114.2317300 |
| Altitude | 1601 |
| Country | United States |
End: Challis (-114.23173, 44.50464)
Estimated Travel Time
Distance: 304 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 17m |
| 40 mph (64.37 km/h) | 04h 43m |
| 50 mph (80.47 km/h) | 03h 46m |
| 60 mph (96.56 km/h) | 03h 08m |
| 70 mph (112.65 km/h) | 02h 41m |
| 80 mph (129 km/h) | 02h 21m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $25.97 | $51.93 |
| Mid-grade | $4.23 | $28.22 | $56.44 |
| Premium | $4.55 | $30.34 | $60.68 |
| Diesel | $5.41 | $36.10 | $72.20 |
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.