# Distance from Houston (IAH) to Son-La (SQH)

> 13,956 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,956 km / 8,672 mi / 7,536 nm
- **Estimated flight time**: 17h
- **Heading**: 338° (north northwest)
- **Return heading**: 21° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 00:22 in Houston, it's 12:22 in Son-La)
- **Elevation difference**: 2,037 ft (SQH is higher than IAH)

## Airports

### [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)

- City: Houston, United States
- ICAO: KIAH
- Timezone: America/Chicago
- Coordinates: 29.980000, -95.340000
- Elevation: 96 ft

### [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

## 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 00:22 in Houston, it's 12:22 in Son-La.
With a 12-hour time difference, expect significant jet lag.

## Related

- [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)
- [Na-San Airport (SQH)](https://www.flightduration.online/airport/sqh-son-la-na-san-airport/1ef266df-f636-61fc-919d-06bb2780ed98)
- [Flight duration calculator](/#calculator)