# Distance from Angaha (NFO) to St Louis (STL)

> 10,684 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,684 km / 6,639 mi / 5,769 nm
- **Estimated flight time**: 14h
- **Heading**: 51° (northeast)
- **Return heading**: 255° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Tonga) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -18h (When it's 12:42 in Angaha, it's 18:42 in St Louis)
- **Elevation difference**: 457 ft (STL is higher than NFO)

## Airports

### [Mata'aho Airport (NFO)](https://www.flightduration.online/airport/nfo-angaha-mataaho-airport/1ef266df-7063-6188-a920-06bb2780ed98)

- City: Angaha, Tonga
- ICAO: NFTO
- Timezone: Pacific/Tongatapu
- Coordinates: -15.570000, -175.630000
- Elevation: 160 ft

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 12:42 in Angaha, it's 18:42 in St Louis.
With a 18-hour time difference, expect significant jet lag.

## Related

- [Mata'aho Airport (NFO)](https://www.flightduration.online/airport/nfo-angaha-mataaho-airport/1ef266df-7063-6188-a920-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)