# Distance from Houston (IAH) to Zakynthos Island (ZTH)

> 9,986 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,986 km / 6,205 mi / 5,392 nm
- **Estimated flight time**: 13h
- **Heading**: 45° (northeast)
- **Return heading**: 309° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Greece
- **Intercontinental**: North America → Europe
- **Time difference**: +8h (When it's 04:25 in Houston, it's 12:25 in Zakynthos Island)
- **Elevation difference**: 81 ft (ZTH 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

### [Dionysios Solomos Airport (ZTH)](https://www.flightduration.online/airport/zth-zakynthos-island-dionysios-solomos-airport/1ef266df-4eb1-6c06-9486-06bb2780ed98)

- City: Zakynthos Island, Greece
- ICAO: LGZA
- Timezone: Europe/Athens
- Coordinates: 37.750000, 20.880000
- Elevation: 15 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 04:25 in Houston, it's 12:25 in Zakynthos Island.
With a 8-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)
- [Dionysios Solomos Airport (ZTH)](https://www.flightduration.online/airport/zth-zakynthos-island-dionysios-solomos-airport/1ef266df-4eb1-6c06-9486-06bb2780ed98)
- [Flight duration calculator](/#calculator)