# Distance from Chiang Mai (CNX) to Houston (IAH)

> 14,382 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,382 km / 8,937 mi / 7,766 nm
- **Estimated flight time**: 18h
- **Heading**: 16° (north northeast)
- **Return heading**: 342° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 07:27 in Chiang Mai, it's 19:27 in Houston)
- **Elevation difference**: 940 ft (IAH is lower than CNX)

## Airports

### [Chiang Mai International Airport (CNX)](https://www.flightduration.online/airport/cnx-chiang-mai-chiang-mai-international-airport/1ef266df-f525-689e-9326-06bb2780ed98)

- City: Chiang Mai, Thailand
- ICAO: VTCC
- Timezone: Asia/Bangkok
- Coordinates: 18.770000, 98.960000
- Elevation: 1,036 ft

### [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

## 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 07:27 in Chiang Mai, it's 19:27 in Houston.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Chiang Mai International Airport (CNX)](https://www.flightduration.online/airport/cnx-chiang-mai-chiang-mai-international-airport/1ef266df-f525-689e-9326-06bb2780ed98)
- [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)
- [Flight duration calculator](/#calculator)