How far is Post Falls from Idaho Falls?

Distance by Flight

Shortest distance between Post Falls and Idaho Falls is 377.74 miles (607.91 km).

Flight distance from Post Falls, ID to Idaho Falls, ID is 377.74 miles. Estimated flight time is 00 hours 59 minutes.

It takes 00 hours 53 minutes to travel from Post Falls to Idaho Falls with an airplane (average speed of 550 miles).

Driving distance

The driving distance from Post Falls, Idaho to Idaho Falls, Idaho is: 490.42 miles (789.26 km) by car.

Driving from Post Falls to Idaho Falls will take approximately 07 hours 18 minutes.

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#1 Post Falls

City in Kootenai County, Idaho, United States

Population 36250
GPS Coordinates 47°43'5"N 116°57'6"W
Latitude 47.7179600
Longitude -116.9515900
Altitude 665
Country United States
Idaho Falls image
#2 Idaho Falls

City in and the county seat of Bonneville County, Idaho, United States

Population 62888
GPS Coordinates 43°27'60"N 112°2'3"W
Latitude 43.4665800
Longitude -112.0341400
Altitude 1434
Country United States

Estimated Travel Time Between Post Falls and Idaho Falls

The distance between Post Falls and Idaho Falls is 789 km if you choose to drive by road. You can go 08 hours 46 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.

Please keep in mind that there is a 1 hour time gap between Post Falls, ID and Idaho Falls, ID. The current time in Post Falls is 08:09:50, although it is 09:09:50 in Idaho Falls.

Average Speed Travel Time
30 mph (48.3 km/h) 16 hours 20 minutes
40 mph (64.37 km/h) 12 hours 15 minutes
50 mph (80.47 km/h) 09 hours 48 minutes
60 mph (96.56 km/h) 08 hours 10 minutes
70 mph (112.65 km/h) 07 hours 00 minutes
75 mph (120.7 km/h) 06 hours 32 minutes
80 mph (128.75 km/h) 06 hours 07 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 65.51 liters (17.31 gallon) of gas to cover the route between Post Falls and Idaho Falls.
The estimated cost of gas to go from Post Falls to Idaho Falls is $57.49 (diesel $63.53).

Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.

The average gas price per gallon of daily gas for calculations is $3.322 (Diesel $3.671) /gallon. Last changed prices on October 25, 2021.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Post Falls and Idaho Falls (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.

Distance to Other Cities

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Driving distance from Ammon, ID to Post Falls 493.76 miles (795 km)

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Driving distance from Boise, ID to Post Falls 390.4 miles (628 km)

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Driving distance from Caldwell, ID to Post Falls 393.43 miles (633 km)

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Driving distance from Chubbuck, ID to Post Falls 532.92 miles (858 km)

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Driving distance from Eagle, ID to Post Falls 382.49 miles (616 km)

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Driving distance from Hayden, ID to Post Falls 11.05 miles (18 km)

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Driving distance from Kuna, ID to Post Falls 414.77 miles (668 km)

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Driving distance from Lewiston, ID to Post Falls 123.47 miles (199 km)

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Driving distance from Meridian, ID to Post Falls 390.52 miles (628 km)

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Driving distance from Moscow, ID to Post Falls 91.6 miles (147 km)

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