# Distance from Houston (IAH) to Galle (KCT)

> 15,989 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 15,989 km / 9,935 mi / 8,633 nm
- **Estimated flight time**: 20h
- **Heading**: 7° (north)
- **Return heading**: 354° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Sri Lanka
- **Intercontinental**: North America → Asia
- **Time difference**: +10.5h (When it's 20:26 in Houston, it's 06:56 in Galle)
- **Elevation difference**: 86 ft (KCT is lower 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

### [Koggala Airport (KCT)](https://www.flightduration.online/airport/kct-galle-koggala-airport/1ef266df-ef77-69b0-94bb-06bb2780ed98)

- City: Galle, Sri Lanka
- ICAO: VCCK
- Timezone: Asia/Colombo
- Coordinates: 5.990000, 80.320000
- Elevation: 10 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 20:26 in Houston, it's 06:56 in Galle.
With a 10.5-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)
- [Koggala Airport (KCT)](https://www.flightduration.online/airport/kct-galle-koggala-airport/1ef266df-ef77-69b0-94bb-06bb2780ed98)
- [Flight duration calculator](/#calculator)