How far is Post Falls, ID from Salmon, ID?
The driving distance from Post Falls, ID to Salmon, ID is about 312.2 miles (502.5 km), with a travel time of about 06h 10m by car.
- The straight-line flight distance is about 228 miles (367 km).
- For a round trip, plan for roughly 12h 20m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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 10m.
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 Shoshone County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Chance Rain And Snow
Driving Route Map
The map below follows the saved road route between Post Falls and Salmon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Post Falls and Salmon.
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1
Start on West 10th Avenue
872 ft · 40 sec · West 10th Avenue
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2
Turn right onto North Spokane Street
2114 ft · 1 min · North Spokane Street
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3
Turn left
2024 ft · 51 sec
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4
Merge slight left
169.2 mi · 2 hr 57 min
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5
Take the exit slight right toward US 93 South: Hamilton
1236 ft · 27 sec
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6
Turn right onto North Reserve Street
5.3 mi · 9 min · North Reserve Street
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7
Turn right onto Brooks Street
2981 ft · 1 min · Brooks Street
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8
Continue on Bitteroot Road
3 mi · 4 min · Bitteroot Road
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9
Continue on US Highway 93 South
128.1 mi · 2 hr 49 min · US Highway 93 South
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10
Continue on Salmon River Scenic Byway
4.5 mi · 7 min · Salmon River Scenic Byway
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11
Turn left onto Courthouse Drive
149 m · 8 sec · Courthouse Drive
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12
Continue on Main Street
791 ft · 15 sec · Main Street
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13
Turn right onto South Saint Charles Street
63 m · 9 sec · South Saint Charles Street
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14
Arrive at your destination
0 m · 1 sec · South Saint Charles Street
Car Route Details
A richer read on the saved driving route between Post Falls and Salmon.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
North Spokane Street
Merge slight left
169 mi · 02h 57m
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.
Chance Light Rain leaving Post Falls and Chance Rain And Snow near Salmon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Post Falls to Salmon?
The road trip is about 312.2 miles (502.5 km) and usually takes 06h 10m 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?
Mullan is a useful midpoint, sitting about 155.9 miles from Post Falls and 156.3 miles from Salmon.
How much longer is the road route than the straight-line distance?
The direct path is about 228 miles (367 km), while the road route adds roughly 84.2 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 PDT. 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 $42.90 one way or $85.80 round trip. Estimated CO2 is about 97.9 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Post Falls and Salmon, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Post Falls and Chance Rain And Snow near Salmon.
Stop Ideas Near Mullan
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 Mullan.
Libby
Sandpoint station
Flight Path Map
This map shows the direct air route between Post Falls and Salmon. Straight-line distance: 228.03 mi (366.98 km).
#1 Post Falls
City in Kootenai County, Idaho, United States
| Population | 36,250 |
| Coordinates | 47.7179600, -116.9515900 |
| Altitude | 665 |
| 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: 502 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 24m |
| 40 mph (64.37 km/h) | 07h 48m |
| 50 mph (80.47 km/h) | 06h 14m |
| 60 mph (96.56 km/h) | 05h 12m |
| 70 mph (112.65 km/h) | 04h 27m |
| 80 mph (129 km/h) | 03h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $42.90 | $85.80 |
| Mid-grade | $4.23 | $46.63 | $93.25 |
| Premium | $4.55 | $50.13 | $100.26 |
| Diesel | $5.41 | $59.64 | $119.28 |
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.