# Distance from St Louis (STL) to Wenzhou (WNZ)

> 11,925 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,925 km / 7,410 mi / 6,439 nm
- **Estimated flight time**: 15h
- **Heading**: 331° (north northwest)
- **Return heading**: 25° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 20:04 in St Louis, it's 09:04 in Wenzhou)
- **Elevation difference**: 617 ft (WNZ is lower than STL)

## Airports

### [St Louis Lambert International Airport (STL)](https://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

### [Wenzhou Yongqiang Airport (WNZ)](https://flightduration.online/airport/wnz-wenzhou-wenzhou-yongqiang-airport/1ef266e0-206b-63fa-9f73-06bb2780ed98)

- City: Wenzhou, China
- ICAO: ZSWZ
- Timezone: Asia/Shanghai
- Coordinates: 27.910000, 120.850000
- Elevation: 0 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 20:04 in St Louis, it's 09:04 in Wenzhou.
With a 13-hour time difference, expect significant jet lag.

## Related

- [St Louis Lambert International Airport (STL)](https://flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Wenzhou Yongqiang Airport (WNZ)](https://flightduration.online/airport/wnz-wenzhou-wenzhou-yongqiang-airport/1ef266e0-206b-63fa-9f73-06bb2780ed98)
- [Flight duration calculator](/#calculator)