# Distance from Greybull (GEY) to Port Louis (MRU)

> 17,032 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 17,032 km / 10,583 mi / 9,197 nm
- **Estimated flight time**: 21h
- **Heading**: 31° (north northeast)
- **Return heading**: 337° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Mauritius
- **Intercontinental**: North America → Africa
- **Time difference**: +10h (When it's 07:02 in Greybull, it's 17:02 in Port Louis)
- **Elevation difference**: 3,756 ft (MRU is lower than GEY)

## Airports

### [South Big Horn County Airport (GEY)](https://www.flightduration.online/airport/gey-greybull-south-big-horn-county-airport/1ef266df-1e0b-643a-8021-06bb2780ed98)

- City: Greybull, United States
- ICAO: KGEY
- Timezone: America/Denver
- Coordinates: 44.520000, -108.080000
- Elevation: 3,942 ft

### [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

## 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 07:02 in Greybull, it's 17:02 in Port Louis.
With a 10-hour time difference, expect significant jet lag.

## Related

- [South Big Horn County Airport (GEY)](https://www.flightduration.online/airport/gey-greybull-south-big-horn-county-airport/1ef266df-1e0b-643a-8021-06bb2780ed98)
- [Sir Seewoosagur Ramgoolam International Airport (MRU)](https://www.flightduration.online/airport/mru-port-louis-sir-seewoosagur-ramgoolam-international-airport/1ef266de-d896-635a-a611-06bb2780ed98)
- [Flight duration calculator](/#calculator)