# Distance from Houston (IAH) to Stara Zagora (SZR)

> 9,961 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,961 km / 6,190 mi / 5,379 nm
- **Estimated flight time**: 13h
- **Heading**: 39° (northeast)
- **Return heading**: 312° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +8h (When it's 08:03 in Houston, it's 16:03 in Stara Zagora)
- **Elevation difference**: 462 ft (SZR 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

### [Stara Zagora Airport (SZR)](https://www.flightduration.online/airport/szr-stara-zagora-stara-zagora-airport/1ef266df-4378-69d4-ba4b-06bb2780ed98)

- City: Stara Zagora, Bulgaria
- ICAO: LBSZ
- Timezone: Europe/Sofia
- Coordinates: 42.380000, 25.660000
- Elevation: 558 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 08:03 in Houston, it's 16:03 in Stara Zagora.
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)
- [Stara Zagora Airport (SZR)](https://www.flightduration.online/airport/szr-stara-zagora-stara-zagora-airport/1ef266df-4378-69d4-ba4b-06bb2780ed98)
- [Flight duration calculator](/#calculator)