# Distance from Belgrad (BEG) to Boulder (WBU)

> 9,127 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,127 km / 5,671 mi / 4,928 nm
- **Estimated flight time**: 12h
- **Heading**: 321° (northwest)
- **Return heading**: 36° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Serbia) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -8h (When it's 13:30 in Belgrad, it's 05:30 in Boulder)
- **Elevation difference**: 4,953 ft (WBU is higher than BEG)

## Airports

### [Belgrade Nikola Tesla Airport (BEG)](https://flightduration.online/airport/beg-belgrad-belgrade-nikola-tesla-airport/1ef266df-5997-663e-8830-06bb2780ed98)

- City: Belgrad, Serbia
- ICAO: LYBE
- Timezone: Europe/Belgrade
- Coordinates: 44.820000, 20.310000
- Elevation: 335 ft

### [Boulder Municipal Airport (WBU)](https://flightduration.online/airport/wbu-boulder-boulder-municipal-airport/1ef266df-1024-68d0-9f40-06bb2780ed98)

- City: Boulder, United States
- ICAO: KBDU
- Timezone: America/Denver
- Coordinates: 40.040000, -105.230000
- Elevation: 5,288 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 13:30 in Belgrad, it's 05:30 in Boulder.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Belgrade Nikola Tesla Airport (BEG)](https://flightduration.online/airport/beg-belgrad-belgrade-nikola-tesla-airport/1ef266df-5997-663e-8830-06bb2780ed98)
- [Boulder Municipal Airport (WBU)](https://flightduration.online/airport/wbu-boulder-boulder-municipal-airport/1ef266df-1024-68d0-9f40-06bb2780ed98)
- [Flight duration calculator](/#calculator)