# Distance from Son-La (SQH) to St Louis (STL)

> 13,180 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,180 km / 8,190 mi / 7,117 nm
- **Estimated flight time**: 17h
- **Heading**: 13° (north northeast)
- **Return heading**: 345° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Vietnam) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 13:35 in Son-La, it's 01:35 in St Louis)
- **Elevation difference**: 1,516 ft (STL is lower than SQH)

## Airports

### [Na-San Airport (SQH)](https://www.flightduration.online/airport/sqh-son-la-na-san-airport/1ef266df-f636-61fc-919d-06bb2780ed98)

- City: Son-La, Vietnam
- ICAO: VVNS
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 21.220000, 104.030000
- Elevation: 2,133 ft

### [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

## 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 13:35 in Son-La, it's 01:35 in St Louis.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Na-San Airport (SQH)](https://www.flightduration.online/airport/sqh-son-la-na-san-airport/1ef266df-f636-61fc-919d-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)