# Distance from Port Louis (MRU) to Spearfish (SPF)

> 16,842 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,842 km / 10,465 mi / 9,094 nm
- **Estimated flight time**: 21h
- **Heading**: 332° (north northwest)
- **Return heading**: 39° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Mauritius) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -10h (When it's 16:09 in Port Louis, it's 06:09 in Spearfish)
- **Elevation difference**: 3,747 ft (SPF is higher than MRU)

## Airports

### [Sir Seewoosagur Ramgoolam International Airport (MRU)](https://www.flightduration.online/airport/mru-port-louis-sir-seewoosagur-ramgoolam-international-airport/1ef266de-d896-635a-a611-06bb2780ed98)

- City: Port Louis, Mauritius
- ICAO: FIMP
- Timezone: Indian/Mauritius
- Coordinates: -20.430000, 57.680000
- Elevation: 186 ft

### [Black Hills-Clyde Ice Field (SPF)](https://www.flightduration.online/airport/spf-spearfish-black-hills-clyde-ice-field/1ef266df-3948-6c5c-a35d-06bb2780ed98)

- City: Spearfish, United States
- ICAO: KSPF
- Timezone: America/Denver
- Coordinates: 44.480000, -103.790000
- Elevation: 3,933 ft

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 16:09 in Port Louis, it's 06:09 in Spearfish.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Sir Seewoosagur Ramgoolam International Airport (MRU)](https://www.flightduration.online/airport/mru-port-louis-sir-seewoosagur-ramgoolam-international-airport/1ef266de-d896-635a-a611-06bb2780ed98)
- [Black Hills-Clyde Ice Field (SPF)](https://www.flightduration.online/airport/spf-spearfish-black-hills-clyde-ice-field/1ef266df-3948-6c5c-a35d-06bb2780ed98)
- [Flight duration calculator](/#calculator)