How far is Idaho Falls, ID, from Rapid City, SD?
The distance between Rapid City (Rapid City Regional Airport) and Idaho Falls (Idaho Falls Regional Airport) is 452 miles / 728 kilometers / 393 nautical miles.
The driving distance from Rapid City (RAP) to Idaho Falls (IDA) is 670 miles / 1079 kilometers, and travel time by car is about 13 hours 9 minutes.
Rapid City Regional Airport – Idaho Falls Regional Airport
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Distance from Rapid City to Idaho Falls
There are several ways to calculate the distance from Rapid City to Idaho Falls. Here are two standard methods:
Vincenty's formula (applied above)- 452.153 miles
- 727.670 kilometers
- 392.910 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 450.934 miles
- 725.708 kilometers
- 391.851 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Rapid City to Idaho Falls?
The estimated flight time from Rapid City Regional Airport to Idaho Falls Regional Airport is 1 hour and 21 minutes.
What is the time difference between Rapid City and Idaho Falls?
There is no time difference between Rapid City and Idaho Falls.
Flight carbon footprint between Rapid City Regional Airport (RAP) and Idaho Falls Regional Airport (IDA)
On average, flying from Rapid City to Idaho Falls generates about 92 kg of CO2 per passenger, and 92 kilograms equals 202 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rapid City to Idaho Falls
See the map of the shortest flight path between Rapid City Regional Airport (RAP) and Idaho Falls Regional Airport (IDA).
Airport information
| Origin | Rapid City Regional Airport |
|---|---|
| City: | Rapid City, SD |
| Country: | United States  |
| IATA Code: | RAP |
| ICAO Code: | KRAP |
| Coordinates: | 44°2′43″N, 103°3′25″W |
| Destination | Idaho Falls Regional Airport |
|---|---|
| City: | Idaho Falls, ID |
| Country: | United States |
| IATA Code: | IDA |
| ICAO Code: | KIDA |
| Coordinates: | 43°30′52″N, 112°4′15″W |