Spanning 590.4 miles across Idaho, this trek from Osburn to Twin Falls is a significant undertaking that requires roughly 8 hours and 42 minutes of pure driving time. Given the length of the journey, you should definitely plan for a two-day itinerary rather than attempting it in a single push. Your budget should account for approximately $94 in fuel costs to cover the distance. You will primarily navigate via I-15 South and I-86 West, traversing the Mountain West region from north to south. While the route is straightforward, splitting the drive into two days allows you to maintain a steady, safe pace across the state.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
295.2 miles from Osburn, ID
A natural place for your longest stop of the day
, about 4h 50m into the drive
.
Main Roads
Road
Distance
Duration
I 15
244.3 mi
3h 49m
I 90
233.1 mi
3h 50m
I 86
62.7 mi
59m
Vietnam Veterans Memorial Highway
39.1 mi
36m
Addison Avenue East
3.9 mi
6m
East 3900 North Road
3.1 mi
5m
Addison Ave East
1 mi
2m
South 1150 East
0.8 mi
<1m
Longest stretch:
I 15
— 244.3 mi, about 3h 49m
Turn-by-Turn Driving Directions
Step-by-step road directions between Osburn, ID and Twin Falls, ID.
1
Start on I 90 Business
0.2 mi·20 sec·North 3rd Street
2
Take the ramp
0.3 mi·32 sec
3
Merge onto I 90
233 mi·3 hr 50 min·I 90
4
Take the exit
0.5 mi·1 min
Toward I 15 South: Dillon, Idaho Falls
5
Merge onto I 15
244 mi·3 hr 49 min·I 15
6
Take the exit
0.6 mi·43 sec
Exit 72Toward I 86 West: Chubbuck, Twin Falls
7
Continue on I 86
63 mi·59 min·I 86
8
Continue on I 84; US 30
39 mi·36 min·Vietnam Veterans Memorial Highway
9
Take the exit
0.4 mi·55 sec
Toward ID 50: Kimberly, Twin Falls
10
Turn left onto ID 50
484 ft·8 sec·South 1150 East
11
Continue on ID 50
0.5 mi·35 sec·ID 50
12
Continue on ID 50
0.7 mi·47 sec·South 1150 East
13
Turn right onto East 3900 North Road
3.1 mi·5 min·East 3900 North Road
14
Continue on Addison Avenue East
3.9 mi·6 min·Addison Avenue East
15
Continue on Addison Ave East
1.0 mi·2 min·Addison Ave East
16
Turn left onto Shoshone Street East
180 ft·6 sec·Shoshone Street East
17
Arrive at destination
Shoshone Street East
Trip Plan
To manage this 590.4-mile journey effectively, you should schedule at least two intentional stops along the way to break up the nearly nine-hour drive. Leaving early in the morning is your best strategy to avoid fatigue and ensure you reach your overnight destination before dark. Since fuel costs will hit the $94 mark, keep an eye on your gauge when passing through more remote stretches where service stations might be spaced further apart. If you find the drive taxing, utilize the two-day recommendation to distribute the mileage evenly. Always double-check your route for any active construction on I-15 or I-86 before you pull out of Osburn.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 295.2 miles from Osburn, ID, or about 4h 50m into the drive.
The longest continuous stretch on this route runs about 244.3 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 130 miles or 2h 9m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 295.2 miles or 4h 50m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 295.2 miles or 4h 50m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 8h 31m
Traffic, exits, and arrival timing usually matter more near Twin Falls, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Osburn, ID so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Osburn, ID
Aim for roughly 295 miles and 4.8 hours of wheel time on this day.
Day 2
Finish the approach into Twin Falls, ID
Aim for roughly 295 miles and 4.8 hours of wheel time on this day.
Your first comfortable stop window is around 130 miles from Osburn, ID.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on I 15 for about 244.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 0.2 and 580.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.2 mi into trip|~0m in
Take the ramp
Navigation decision point
3
0.4 mi into trip|~0m in|I 90
Merge onto I 90
Merge point - match speed before joining
5
233.5 mi into trip|~3h 51m in
Take the exit toward I 15 South: Dillon, Idaho Falls
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 15 South: Dillon, Idaho Falls
6
478.3 mi into trip|~7h 42m in
Take the exit toward I 86 West: Chubbuck, Twin Falls
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 72
Toward I 86 West: Chubbuck, Twin Falls
5
580.7 mi into trip|~9h 19m in
Take the exit toward ID 50: Kimberly, Twin Falls
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward ID 50: Kimberly, Twin Falls
Fuel & Cost
Regular Gas
$93.56 one way
$187.11 round trip
$4.03/gal25.4 MPG avg207 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$98.07
$196.13
premium
$4.53
$105.32
$210.64
diesel
$5.61
$130.35
$260.71
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$94
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$224–$334
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 206.6 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $62 in charging
· 2 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
177.1
2
$61.99
$28.34
Efficient EV
147.6
1
$51.66
$23.62
EV Truck/SUV
236.2
2
$82.66
$37.79
Gas CO2
207 kg
EV CO2
69 kg (67% less)
Plan for 2 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 15, 2026
Origin
Osburn, ID
Evening
in Osburn on Saturday
Local time
6:08 PM
PDT
Current temp
45°F
Unavailable
Live forecast
Destination
Twin Falls, ID
Evening
in Twin Falls on Saturday
Local time
7:08 PM
MDT
Current temp
64°F
Unavailable
Live forecast
74°F
Whitehall, MT
390 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
1 hour later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
19 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
9h 36m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Hagerman Fossil Beds National Monument
National Monument
During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excellent habitat for a variety of animals. From fascinating, now-extinct creatures like the sab...
29 mi from route
~73 min detour
Free
near mile 590.4
Caution: Use Caution with "Fossil Beds Information" Signs
Caution: If You Can't Reach Us By Phone, Please Email Us
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You can expect a long-distance drive that focuses heavily on high-speed interstate travel. The route utilizes major arteries like the Vietnam Veterans Memorial Highway, shifting your experience from northern Idaho toward the southern part of the state. Because this is a long-haul transit, you will spend the vast majority of your time behind the wheel focused on interstate navigation. The rhythm of the drive is consistent, favoring efficiency over technical or winding backroads. Prepare for a steady, monotonous pace that demands sustained attention as you move through the diverse landscapes of the Idaho corridor.
92% highway — fuel and pacing are the main things to plan.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 244.3 mi on I 15.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on I 15 and I 90. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.2 miles in.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 9h 36m, endurance matters. Plan breaks every 2-3 hours. The 8 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: at 0.2 miles: Navigation decision point; at 0.4 miles (I 90): Merge point - match speed before joining; at 233.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Osburn, ID to Twin Falls, ID, road signs begin pointing toward Idaho Falls along the way.
Twin Falls is the largest city in South Central Idaho and the seventh-largest city in the state. The geology of the Magic Valley is also notable, considering that it once sat atop the hotspot that is under Yellowstone National Park. There are dormant shield volcanoes littered everywhere, and basalt as far as the eye can see, making this a prime spot for anyone interested in geological history. Its proximity to outdoor activities and to casino gaming in nearby Nevada give it a regional tourist flair.
The longest stretch is about 244.3 miles on I 15. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 295 miles on day one.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Twin Falls, ID before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
Mostly yes along the main roads, but rural stretches through ID can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: at 0.2 miles: Navigation decision point; at 0.4 miles (I 90): Merge point - match speed before joining; at 233.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Yes — Hagerman Fossil Beds National Monument. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 9.6 hours each way, a round trip means 19.2 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Twin Falls, ID before the return drive.
