# Distance from Athens (ATH) to Boulder (WBU)

> 9,917 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,917 km / 6,162 mi / 5,355 nm
- **Estimated flight time**: 13h
- **Heading**: 324° (northwest)
- **Return heading**: 38° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Greece) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -9h (When it's 07:39 in Athens, it's 22:39 in Boulder)
- **Elevation difference**: 4,980 ft (WBU is higher than ATH)

## Airports

### [Eleftherios Venizelos International Airport (ATH)](https://flightduration.online/airport/ath-athens-eleftherios-venizelos-international-airport/1ef266df-4dd8-66cc-be87-06bb2780ed98)

- City: Athens, Greece
- ICAO: LGAV
- Timezone: Europe/Athens
- Coordinates: 37.940000, 23.940000
- Elevation: 308 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 07:39 in Athens, it's 22:39 in Boulder.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Eleftherios Venizelos International Airport (ATH)](https://flightduration.online/airport/ath-athens-eleftherios-venizelos-international-airport/1ef266df-4dd8-66cc-be87-06bb2780ed98)
- [Boulder Municipal Airport (WBU)](https://flightduration.online/airport/wbu-boulder-boulder-municipal-airport/1ef266df-1024-68d0-9f40-06bb2780ed98)
- [Flight duration calculator](/#calculator)