# Distance from St Louis (STL) to Tianshui (THQ)

> 11,694 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,694 km / 7,266 mi / 6,314 nm
- **Estimated flight time**: 15h
- **Heading**: 346° (north northwest)
- **Return heading**: 13° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 01:21 in St Louis, it's 14:21 in Tianshui)
- **Elevation difference**: 2,973 ft (THQ 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

### [Tianshui Maijishan Airport (THQ)](https://www.flightduration.online/airport/thq-tianshui-tianshui-maijishan-airport/1ef266e0-1f33-65fa-bfac-06bb2780ed98)

- City: Tianshui, China
- ICAO: ZLTS
- Timezone: Asia/Shanghai
- Coordinates: 34.560000, 105.860000
- Elevation: 3,590 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 01:21 in St Louis, it's 14:21 in Tianshui.
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)
- [Tianshui Maijishan Airport (THQ)](https://www.flightduration.online/airport/thq-tianshui-tianshui-maijishan-airport/1ef266e0-1f33-65fa-bfac-06bb2780ed98)
- [Flight duration calculator](/#calculator)