How far is Salmon, ID from Lewiston, ID?
The driving distance from Salmon, ID to Lewiston, ID is about 335 miles (539.1 km), with a travel time of about 06h 43m by car.
- The straight-line flight distance is about 173.1 miles (278.6 km).
- For a round trip, plan for roughly 13h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 43m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Clearwater County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely then Showers And Thunderstorms
Rain Showers
Driving Route Map
The map below follows the saved road route between Salmon and Lewiston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Salmon and Lewiston.
-
1
Start on South Saint Charles Street
63 m · 14 sec · South Saint Charles Street
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2
Turn left onto Main Street
1103 ft · 19 sec · Main Street
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3
Turn slight right onto US 93: Missoula
128.7 mi · 2 hr 50 min
-
4
Turn left onto Lolo Creek Road
32.6 mi · 39 min · Lolo Creek Road
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5
Continue straight
163.6 mi · 3 hr 42 min
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6
Take the exit slight right
7.5 mi · 9 min
-
7
Keep slight left to continue on Lewiston
1.6 mi · 3 min
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8
Turn right onto Idaho Street
1.2 km · 2 min · Idaho Street
-
9
Turn left
32 m · 8 sec
-
10
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Salmon and Lewiston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Lolo Creek Road
Continue straight
164 mi · 03h 42m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Light Rain Likely then Showers And Thunderstorms leaving Salmon and Rain Showers near Lewiston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Salmon to Lewiston?
The road trip is about 335 miles (539.1 km) and usually takes 06h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Pierce is a useful midpoint, sitting about 167.3 miles from Salmon and 167.6 miles from Lewiston.
How much longer is the road route than the straight-line distance?
The direct path is about 173.1 miles (278.6 km), while the road route adds roughly 161.9 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $46.02 one way or $92.03 round trip. Estimated CO2 is about 105 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Salmon and Lewiston, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Light Rain Likely then Showers And Thunderstorms around Salmon and Rain Showers near Lewiston.
Stop Ideas Near Pierce
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Pierce.
Grangeville, Idaho
Lewiston, Idaho
Moscow, Idaho
Pullman, Washington
Flight Path Map
This map shows the direct air route between Salmon and Lewiston. Straight-line distance: 173.08 mi (278.55 km).
#1 Salmon
City in Lemhi County, Idaho, United States
| Population | 3,169 |
| Coordinates | 45.1757500, -113.8959000 |
| Altitude | 1202 |
| Country | United States |
#2 Lewiston
City in Nez Perce County, Idaho, USA
| Population | 32,788 |
| Coordinates | 46.4165500, -117.0176600 |
| Altitude | 227 |
| Country | United States |
End: Idaho Street (-117.0175, 46.416816)
Estimated Travel Time
Distance: 539 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 09m |
| 40 mph (64.37 km/h) | 08h 22m |
| 50 mph (80.47 km/h) | 06h 41m |
| 60 mph (96.56 km/h) | 05h 34m |
| 70 mph (112.65 km/h) | 04h 47m |
| 80 mph (129 km/h) | 04h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $46.02 | $92.03 |
| Mid-grade | $4.23 | $50.01 | $100.02 |
| Premium | $4.55 | $53.77 | $107.54 |
| Diesel | $5.41 | $63.97 | $127.94 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.