# Distance from St Louis (STL) to Zunyi (ZYI)

> 12,391 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,391 km / 7,699 mi / 6,691 nm
- **Estimated flight time**: 16h
- **Heading**: 343° (north northwest)
- **Return heading**: 15° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 16:23 in St Louis, it's 05:23 in Zunyi)
- **Elevation difference**: 2,303 ft (ZYI is higher 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

### [Zunyi Xinzhou Airport (ZYI)](https://www.flightduration.online/airport/zyi-zunyi-zunyi-xinzhou-airport/1ef266e0-20e6-6f0a-ae4d-06bb2780ed98)

- City: Zunyi, China
- ICAO: ZUZY
- Timezone: Asia/Shanghai
- Coordinates: 27.810000, 107.250000
- Elevation: 2,920 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 16:23 in St Louis, it's 05:23 in Zunyi.
With a 13-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)
- [Zunyi Xinzhou Airport (ZYI)](https://www.flightduration.online/airport/zyi-zunyi-zunyi-xinzhou-airport/1ef266e0-20e6-6f0a-ae4d-06bb2780ed98)
- [Flight duration calculator](/#calculator)