How far is Preston, ID from Idaho Falls, ID?
The driving distance from Preston, ID to Idaho Falls, ID is about 116.8 miles (187.9 km), with a travel time of about 01h 44m by car.
- The straight-line flight distance is about 95 miles (152.9 km).
- For a round trip, plan for roughly 03h 28m 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 01h 44m.
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 Bannock County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Preston and Idaho Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Preston and Idaho Falls.
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1
Start on North State Street
33.7 mi · 42 min · North State Street
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2
Take the ramp slight right
2766 ft · 1 min
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3
Merge slight left onto Veterans Memorial Highway
79.4 mi · 1 hr 16 min · Veterans Memorial Highway
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4
Take the exit slight right toward I 15 Business, US 26: Ammon, Jackson
1448 ft · 36 sec
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5
Turn right onto West Sunnyside Road
2.6 mi · 4 min · West Sunnyside Road
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6
Turn right onto Stonebrook Lane
142 m · 15 sec · Stonebrook Lane
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7
Turn right onto West Stone Run Lane
74 m · 16 sec · West Stone Run Lane
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8
Turn left onto Charleston Lane
46 m · 7 sec · Charleston Lane
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9
Arrive at your destination
0 m · 1 sec · Charleston Lane
Car Route Details
A richer read on the saved driving route between Preston 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.
Veterans Memorial Highway
Merge slight left onto Veterans Memorial Highway
79.4 mi · 01h 16m
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.
Partly Sunny then Chance Showers And Thunderstorms leaving Preston and Mostly Sunny then Slight Chance Showers And Thunderstorms near Idaho Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Preston to Idaho Falls?
The road trip is about 116.8 miles (187.9 km) and usually takes 01h 44m 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?
Inkom is a useful midpoint, sitting about 58.3 miles from Preston and 58.5 miles from Idaho Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 95 miles (152.9 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 3:02 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.04 one way or $32.08 round trip. Estimated CO2 is about 36.6 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around Preston and Mostly Sunny then Slight Chance Showers And Thunderstorms near Idaho Falls.
Flight Path Map
This map shows the direct air route between Preston and Idaho Falls. Straight-line distance: 95.01 mi (152.91 km).
#1 Preston
City in Franklin County, Idaho, United States
| Population | 5,557 |
| Coordinates | 42.0963100, -111.8766200 |
| Altitude | 1437 |
| 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: 188 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 53m |
| 40 mph (64.37 km/h) | 02h 55m |
| 50 mph (80.47 km/h) | 02h 20m |
| 60 mph (96.56 km/h) | 01h 56m |
| 70 mph (112.65 km/h) | 01h 40m |
| 80 mph (129 km/h) | 01h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $16.04 | $32.08 |
| Mid-grade | $4.23 | $17.43 | $34.86 |
| Premium | $4.55 | $18.74 | $37.48 |
| Diesel | $5.41 | $22.30 | $44.59 |
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 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.