# Distance from St Louis (STL) to Tonghua (TNH)

> 10,299 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,299 km / 6,400 mi / 5,561 nm
- **Estimated flight time**: 13h
- **Heading**: 334° (north northwest)
- **Return heading**: 27° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 02:20 in St Louis, it's 15:20 in Tonghua)
- **Elevation difference**: 583 ft (TNH 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

### [Tonghua Sanyuanpu Airport (TNH)](https://www.flightduration.online/airport/tnh-tonghua-tonghua-sanyuanpu-airport/1ef266e0-216c-651a-9861-06bb2780ed98)

- City: Tonghua, China
- ICAO: ZYTN
- Timezone: Asia/Shanghai
- Coordinates: 42.250000, 125.700000
- Elevation: 1,200 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 02:20 in St Louis, it's 15:20 in Tonghua.
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)
- [Tonghua Sanyuanpu Airport (TNH)](https://www.flightduration.online/airport/tnh-tonghua-tonghua-sanyuanpu-airport/1ef266e0-216c-651a-9861-06bb2780ed98)
- [Flight duration calculator](/#calculator)