# Distance from St Louis (STL) to Trieste (TRS)

> 7,939 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,939 km / 4,933 mi / 4,287 nm
- **Estimated flight time**: 10h
- **Heading**: 46° (northeast)
- **Return heading**: 307° (northwest)
- **Classification**: Long-haul
- **Type**: International (United States) → Italy
- **Intercontinental**: North America → Europe
- **Time difference**: +7h (When it's 19:09 in St Louis, it's 02:09 in Trieste)
- **Elevation difference**: 578 ft (TRS is lower than STL)

## Airports

### [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

### [Trieste / Ronchi Dei Legionari (TRS)](https://www.flightduration.online/airport/trs-trieste-trieste-ronchi-dei-legionari/1ef266df-50f8-6c9e-9333-06bb2780ed98)

- City: Trieste, Italy
- ICAO: LIPQ
- Timezone: Europe/Rome
- Coordinates: 45.830000, 13.470000
- Elevation: 39 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 19:09 in St Louis, it's 02:09 in Trieste.
With a 7-hour time difference, expect significant jet lag.

## Related

- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Trieste / Ronchi Dei Legionari (TRS)](https://www.flightduration.online/airport/trs-trieste-trieste-ronchi-dei-legionari/1ef266df-50f8-6c9e-9333-06bb2780ed98)
- [Flight duration calculator](/#calculator)