How far is Post Falls, ID from Fort Hall, ID?
The driving distance from Post Falls, ID to Fort Hall, ID is about 525.7 miles (846 km), with a travel time of about 08h 38m by car.
- The straight-line flight distance is about 390.7 miles (628.7 km).
- For a round trip, plan for roughly 17h 17m 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 08h 38m.
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 Lemhi County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Driving Route Map
The map below follows the saved road route between Post Falls and Fort Hall.
Turn-by-Turn Driving Directions
Step-by-step road directions between Post Falls and Fort Hall.
-
1
Start on West 10th Avenue
872 ft · 40 sec · West 10th Avenue
-
2
Turn right onto North Spokane Street
2114 ft · 1 min · North Spokane Street
-
3
Turn left
2024 ft · 51 sec
-
4
Merge slight left
285.1 mi · 4 hr 47 min
-
5
Take the exit slight right toward I 15 South: Dillon, Idaho Falls
2694 ft · 1 min
-
6
Merge slight left
236.7 mi · 3 hr 42 min
-
7
Take the exit slight right toward Fort Hall
1027 ft · 26 sec
-
8
Turn right onto East Ross Fork Road
2128 ft · 44 sec · East Ross Fork Road
-
9
Turn right onto North Eagle Road
2620 ft · 58 sec · North Eagle Road
-
10
Turn left onto West Agency Road
1 mi · 2 min · West Agency Road
-
11
Turn right onto North Treaty Highway
1145 ft · 26 sec · North Treaty Highway
-
12
Turn left onto 3rd Street
149 m · 24 sec · 3rd Street
-
13
Turn right onto B Avenue
90 m · 13 sec · B Avenue
-
14
Arrive at your destination
0 m · 1 sec · B Avenue
Car Route Details
A richer read on the saved driving route between Post Falls and Fort Hall.
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
285 mi · 04h 47m
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.
Rain leaving Post Falls and Rain Showers near Fort Hall.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Post Falls to Fort Hall?
The road trip is about 525.7 miles (846 km) and usually takes 08h 38m 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?
Salmon is a useful midpoint, sitting about 262.6 miles from Post Falls and 263.1 miles from Fort Hall.
How much longer is the road route than the straight-line distance?
The direct path is about 390.7 miles (628.7 km), while the road route adds roughly 135 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 $72.22 one way or $144.43 round trip. Estimated CO2 is about 164.9 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 Fort Hall, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Rain around Post Falls and Rain Showers near Fort Hall.
Flight Path Map
This map shows the direct air route between Post Falls and Fort Hall. Straight-line distance: 390.68 mi (628.74 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 Fort Hall
City in Idaho, United States of America
| Population | 3,201 |
| Coordinates | 43.0332500, -112.4383100 |
| Altitude | 1354 |
| Country | United States |
End: Fort Hall (-112.43831, 43.03325)
Estimated Travel Time
Distance: 846 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 17h 30m |
| 40 mph (64.37 km/h) | 13h 08m |
| 50 mph (80.47 km/h) | 10h 30m |
| 60 mph (96.56 km/h) | 08h 45m |
| 70 mph (112.65 km/h) | 07h 30m |
| 80 mph (129 km/h) | 06h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $72.22 | $144.43 |
| Mid-grade | $4.23 | $78.49 | $156.97 |
| Premium | $4.55 | $84.38 | $168.77 |
| Diesel | $5.41 | $100.39 | $200.79 |
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.