How far is Twin Falls, ID from Idaho Falls, ID?
The driving distance from Twin Falls, ID to Idaho Falls, ID is about 159.4 miles (256.6 km), with a travel time of about 02h 18m by car.
- The straight-line flight distance is about 137.6 miles (221.4 km).
- For a round trip, plan for roughly 04h 36m 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 18m.
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 Power County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Partly Sunny
Light Rain Likely then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Twin Falls and Idaho Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Twin Falls and Idaho Falls.
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1
Start on Shoshone Street East
1.2 km · 1 min · Shoshone Street East
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2
Turn left onto 2nd Avenue South
1.2 km · 1 min · 2nd Avenue South
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3
Continue on Kimberly Road
4.9 mi · 7 min · Kimberly Road
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4
Continue on East 3800 North
4.2 mi · 6 min · East 3800 North
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5
Continue on ID 50
2114 ft · 28 sec · ID 50
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6
Take the ramp straight
2203 ft · 54 sec
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7
Merge slight left onto Vietnam Veterans Memorial Highway
39.1 mi · 37 min · Vietnam Veterans Memorial Highway
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8
Continue straight
62.7 mi · 59 min
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9
Keep slight left to continue on Idaho Falls
3046 ft · 40 sec
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10
Merge slight right
43.2 mi · 41 min
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11
Take the exit slight right toward I 15 Business, US 26: Ammon, Jackson
1448 ft · 36 sec
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12
Turn right onto West Sunnyside Road
2.6 mi · 4 min · West Sunnyside Road
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13
Turn right onto Stonebrook Lane
142 m · 15 sec · Stonebrook Lane
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14
Turn right onto West Stone Run Lane
74 m · 16 sec · West Stone Run Lane
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15
Turn left onto Charleston Lane
46 m · 7 sec · Charleston Lane
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16
Arrive at your destination
0 m · 1 sec · Charleston Lane
Car Route Details
A richer read on the saved driving route between Twin Falls 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.
Vietnam Veterans Memorial Highway
Continue straight
62.7 mi · 00h 59m
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.
Chance Rain Showers then Partly Sunny leaving Twin Falls and Light Rain Likely then Showers And Thunderstorms Likely near Idaho Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Twin Falls to Idaho Falls?
The road trip is about 159.4 miles (256.6 km) and usually takes 02h 18m 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?
Rockland is a useful midpoint, sitting about 79.8 miles from Twin Falls and 79.6 miles from Idaho Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 137.6 miles (221.4 km), while the road route adds roughly 21.8 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 1:54 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.92 one way or $43.84 round trip. Estimated CO2 is about 50 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Partly Sunny around Twin Falls and Light Rain Likely then Showers And Thunderstorms Likely near Idaho Falls.
Flight Path Map
This map shows the direct air route between Twin Falls and Idaho Falls. Straight-line distance: 137.57 mi (221.4 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 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: 257 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 18m |
| 40 mph (64.37 km/h) | 03h 59m |
| 50 mph (80.47 km/h) | 03h 11m |
| 60 mph (96.56 km/h) | 02h 39m |
| 70 mph (112.65 km/h) | 02h 16m |
| 80 mph (129 km/h) | 01h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $21.92 | $43.84 |
| Mid-grade | $4.23 | $23.82 | $47.64 |
| Premium | $4.55 | $25.61 | $51.22 |
| Diesel | $5.41 | $30.47 | $60.94 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.