# Distance from Houston (IAH) to Allahabad (IXD)

> 13,845 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,845 km / 8,603 mi / 7,476 nm
- **Estimated flight time**: 17h
- **Heading**: 3° (north)
- **Return heading**: 357° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → India
- **Intercontinental**: North America → Asia
- **Time difference**: +10.5h (When it's 22:40 in Houston, it's 09:10 in Allahabad)
- **Elevation difference**: 226 ft (IXD 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

### [Allahabad Airport (IXD)](https://www.flightduration.online/airport/ixd-allahabad-allahabad-airport/1ef266df-f1c1-655e-a60c-06bb2780ed98)

- City: Allahabad, India
- ICAO: VIAL
- Timezone: Asia/Kolkata
- Coordinates: 25.440000, 81.730000
- Elevation: 322 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 22:40 in Houston, it's 09:10 in Allahabad.
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)
- [Allahabad Airport (IXD)](https://www.flightduration.online/airport/ixd-allahabad-allahabad-airport/1ef266df-f1c1-655e-a60c-06bb2780ed98)
- [Flight duration calculator](/#calculator)