# Distance from St Louis (STL) to Ulan Ude (UUD)

> 9,798 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,798 km / 6,088 mi / 5,291 nm
- **Estimated flight time**: 13h
- **Heading**: 349° (north)
- **Return heading**: 14° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Russia
- **Intercontinental**: North America → Europe
- **Time difference**: +13h (When it's 17:33 in St Louis, it's 06:33 in Ulan Ude)
- **Elevation difference**: 1,073 ft (UUD is higher 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

### [Ulan-Ude Airport (Mukhino) (UUD)](https://www.flightduration.online/airport/uud-ulan-ude-ulan-ude-airport-mukhino/1ef266df-e691-67ba-a2cb-06bb2780ed98)

- City: Ulan Ude, Russia
- ICAO: UIUU
- Timezone: Asia/Irkutsk
- Coordinates: 51.810000, 107.440000
- Elevation: 1,690 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 17:33 in St Louis, it's 06:33 in Ulan Ude.
With a 13-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)
- [Ulan-Ude Airport (Mukhino) (UUD)](https://www.flightduration.online/airport/uud-ulan-ude-ulan-ude-airport-mukhino/1ef266df-e691-67ba-a2cb-06bb2780ed98)
- [Flight duration calculator](/#calculator)