How far is Rexburg, ID from Salmon, ID?
The driving distance from Rexburg, ID to Salmon, ID is about 156.4 miles (251.7 km), with a travel time of about 03h 23m by car.
- The straight-line flight distance is about 139.5 miles (224.5 km).
- For a round trip, plan for roughly 06h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MST.
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 03h 23m.
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 Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Mostly Cloudy then Chance Light Rain
Driving Route Map
The map below follows the saved road route between Rexburg and Salmon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rexburg and Salmon.
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1
Start on West Main Street
1 mi · 2 min · West Main Street
-
2
Continue on West Main Street
34.6 mi · 52 min · West Main Street
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3
Turn right onto North Salmon Highway
120.8 mi · 2 hr 29 min · North Salmon Highway
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4
Turn left onto South Saint Charles Street
63 m · 9 sec · South Saint Charles Street
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5
Arrive at your destination
0 m · 1 sec · South Saint Charles Street
Car Route Details
A richer read on the saved driving route between Rexburg and Salmon.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North Salmon Highway
Turn right onto North Salmon Highway
121 mi · 02h 29m
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.
Light Rain Likely leaving Rexburg and Mostly Cloudy then Chance Light Rain near Salmon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rexburg to Salmon?
The road trip is about 156.4 miles (251.7 km) and usually takes 03h 23m 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?
Leadore is a useful midpoint, sitting about 78.1 miles from Rexburg and 78.3 miles from Salmon.
How much longer is the road route than the straight-line distance?
The direct path is about 139.5 miles (224.5 km), while the road route adds roughly 16.9 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 MST. If you want a more comfortable same-day return, try to leave by 10:14 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $25.33 one way or $50.65 round trip. Estimated CO2 is about 49.1 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Rexburg and Mostly Cloudy then Chance Light Rain near Salmon.
Flight Path Map
This map shows the direct air route between Rexburg and Salmon. Straight-line distance: 139.53 mi (224.55 km).
#1 Rexburg
City in and county seat of Madison County, Idaho, United States
| Population | 29,400 |
| Coordinates | 43.8260200, -111.7896900 |
| Altitude | 1483 |
| Country | United States |
#2 Salmon
City in Lemhi County, Idaho, United States
| Population | 3,169 |
| Coordinates | 45.1757500, -113.8959000 |
| Altitude | 1202 |
| Country | United States |
End: Salmon (-113.8959, 45.17575)
Estimated Travel Time
Distance: 252 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 12m |
| 40 mph (64.37 km/h) | 03h 54m |
| 50 mph (80.47 km/h) | 03h 07m |
| 60 mph (96.56 km/h) | 02h 36m |
| 70 mph (112.65 km/h) | 02h 14m |
| 80 mph (129 km/h) | 01h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.59 | $25.33 | $50.65 |
| Mid-grade | $4.90 | $27.05 | $54.10 |
| Premium | $5.16 | $28.46 | $56.92 |
| Diesel | $6.57 | $36.24 | $72.49 |
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 · Oct 31, 2026