# Distance from St Louis (STL) to Quy Nohn (UIH)

> 13,816 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,816 km / 8,585 mi / 7,460 nm
- **Estimated flight time**: 17h
- **Heading**: 337° (north northwest)
- **Return heading**: 18° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 08:36 in St Louis, it's 20:36 in Quy Nohn)
- **Elevation difference**: 537 ft (UIH is lower than STL)

## Airports

### [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

### [Phu Cat Airport (UIH)](https://www.flightduration.online/airport/uih-quy-nohn-phu-cat-airport/1ef266df-f643-641a-b679-06bb2780ed98)

- City: Quy Nohn, Vietnam
- ICAO: VVPC
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 13.960000, 109.040000
- Elevation: 80 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 08:36 in St Louis, it's 20:36 in Quy Nohn.
With a 12-hour time difference, expect significant jet lag.

## Related

- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Phu Cat Airport (UIH)](https://www.flightduration.online/airport/uih-quy-nohn-phu-cat-airport/1ef266df-f643-641a-b679-06bb2780ed98)
- [Flight duration calculator](/#calculator)