How far is Alpena, MI, from Rapid City, SD?
The distance between Rapid City (Rapid City Regional Airport) and Alpena (Alpena County Regional Airport) is 963 miles / 1549 kilometers / 837 nautical miles.
The driving distance from Rapid City (RAP) to Alpena (APN) is 1179 miles / 1898 kilometers, and travel time by car is about 22 hours 23 minutes.
Rapid City Regional Airport – Alpena County Regional Airport
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Distance from Rapid City to Alpena
There are several ways to calculate the distance from Rapid City to Alpena. Here are two standard methods:
Vincenty's formula (applied above)- 962.755 miles
- 1549.403 kilometers
- 836.611 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- 960.111 miles
- 1545.148 kilometers
- 834.313 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 Alpena?
The estimated flight time from Rapid City Regional Airport to Alpena County Regional Airport is 2 hours and 19 minutes.
What is the time difference between Rapid City and Alpena?
The time difference between Rapid City and Alpena is 2 hours. Alpena is 2 hours ahead of Rapid City.
Flight carbon footprint between Rapid City Regional Airport (RAP) and Alpena County Regional Airport (APN)
On average, flying from Rapid City to Alpena generates about 148 kg of CO2 per passenger, and 148 kilograms equals 327 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 Alpena
See the map of the shortest flight path between Rapid City Regional Airport (RAP) and Alpena County Regional Airport (APN).
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 | Alpena County Regional Airport |
|---|---|
| City: | Alpena, MI |
| Country: | United States |
| IATA Code: | APN |
| ICAO Code: | KAPN |
| Coordinates: | 45°4′41″N, 83°33′37″W |