# Distance from Denver (DEN) to Simao (SYM)

> 12,559 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,559 km / 7,804 mi / 6,781 nm
- **Estimated flight time**: 16h
- **Heading**: 334° (north northwest)
- **Return heading**: 21° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 21:59 in Denver, it's 11:59 in Simao)
- **Elevation difference**: 5,434 ft (SYM is lower than DEN)

## Airports

### [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

### [Simao Airport (SYM)](https://www.flightduration.online/airport/sym-simao-simao-airport/1ef266e0-1fbd-65b6-a651-06bb2780ed98)

- City: Simao, China
- ICAO: ZPSM
- Timezone: Asia/Shanghai
- Coordinates: 22.790000, 100.960000
- Elevation: 0 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 21:59 in Denver, it's 11:59 in Simao.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Denver International Airport (DEN)](https://www.flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)
- [Simao Airport (SYM)](https://www.flightduration.online/airport/sym-simao-simao-airport/1ef266e0-1fbd-65b6-a651-06bb2780ed98)
- [Flight duration calculator](/#calculator)