# Distance from Attopeu (AOU) to Denver (DEN)

> 13,118 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 13,118 km / 8,151 mi / 7,083 nm
- **Estimated flight time**: 16h
- **Heading**: 27° (north northeast)
- **Return heading**: 325° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Laos) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -13h (When it's 01:58 in Attopeu, it's 12:58 in Denver)
- **Elevation difference**: 5,090 ft (DEN is higher than AOU)

## Airports

### [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)

- City: Attopeu, Laos
- ICAO: VLAP
- Timezone: Asia/Vientiane
- Coordinates: 14.810000, 106.820000
- Elevation: 344 ft

### [Denver International Airport (DEN)](https://www.flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)

- City: Denver, United States
- ICAO: KDEN
- Timezone: America/Denver
- Coordinates: 39.860000, -104.670000
- Elevation: 5,434 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 01:58 in Attopeu, it's 12:58 in Denver.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)
- [Denver International Airport (DEN)](https://www.flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)
- [Flight duration calculator](/#calculator)