# Distance from Cahokia/St Louis (CPS) to Shenzhen (SZX)

> 12,765 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,765 km / 7,932 mi / 6,892 nm
- **Estimated flight time**: 16h
- **Heading**: 336° (north northwest)
- **Return heading**: 20° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 01:54 in Cahokia/St Louis, it's 14:54 in Shenzhen)
- **Elevation difference**: 400 ft (SZX is lower than CPS)

## Airports

### [St Louis Downtown Airport (CPS)](https://www.flightduration.online/airport/cps-cahokiast-louis-st-louis-downtown-airport/1ef266df-14d9-6b50-a477-06bb2780ed98)

- City: Cahokia/St Louis, United States
- ICAO: KCPS
- Timezone: America/Chicago
- Coordinates: 38.570000, -90.160000
- Elevation: 413 ft

### [Shenzhen Bao'an International Airport (SZX)](https://www.flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)

- City: Shenzhen, China
- ICAO: ZGSZ
- Timezone: Asia/Shanghai
- Coordinates: 22.640000, 113.810000
- Elevation: 13 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 01:54 in Cahokia/St Louis, it's 14:54 in Shenzhen.
With a 13-hour time difference, expect significant jet lag.

## Related

- [St Louis Downtown Airport (CPS)](https://www.flightduration.online/airport/cps-cahokiast-louis-st-louis-downtown-airport/1ef266df-14d9-6b50-a477-06bb2780ed98)
- [Shenzhen Bao'an International Airport (SZX)](https://www.flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)
- [Flight duration calculator](/#calculator)