# Distance from Dezful Airport (DEF) to St Louis (STL)

> 11,027 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,027 km / 6,852 mi / 5,954 nm
- **Estimated flight time**: 14h
- **Heading**: 329° (north northwest)
- **Return heading**: 34° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Iran) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -8.5h (When it's 03:16 in Dezful Airport, it's 18:46 in St Louis)
- **Elevation difference**: 143 ft (STL is higher than DEF)

## Airports

### [Dezful Airport (DEF)](https://www.flightduration.online/airport/def-dezful-airport/1ef266df-7cbf-679c-95be-06bb2780ed98)

- City: Dezful Airport, Iran
- ICAO: OIAD
- Timezone: Asia/Tehran
- Coordinates: 32.430000, 48.400000
- Elevation: 474 ft

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 03:16 in Dezful Airport, it's 18:46 in St Louis.
With a 8.5-hour time difference, expect significant jet lag.

## Related

- [Dezful Airport (DEF)](https://www.flightduration.online/airport/def-dezful-airport/1ef266df-7cbf-679c-95be-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)