# Distance from Herlong (AHC) to Singapore (SIN)

> 13,583 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,583 km / 8,440 mi / 7,334 nm
- **Estimated flight time**: 17h
- **Heading**: 305° (northwest)
- **Return heading**: 39° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Singapore
- **Intercontinental**: North America → Asia
- **Time difference**: +15h (When it's 07:12 in Herlong, it's 22:12 in Singapore)
- **Elevation difference**: 3,990 ft (SIN is lower than AHC)

## Airports

### [Amedee Army Air Field (AHC)](https://flightduration.online/airport/ahc-herlong-amedee-army-air-field/1ef266df-0da9-6f56-8358-06bb2780ed98)

- City: Herlong, United States
- ICAO: KAHC
- Timezone: America/Los_Angeles
- Coordinates: 40.270000, -120.150000
- Elevation: 4,012 ft

### [Singapore Changi International Airport (SIN)](https://flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)

- City: Singapore, Singapore
- ICAO: WSSS
- Timezone: Asia/Singapore
- Coordinates: 1.350000, 103.990000
- Elevation: 22 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 07:12 in Herlong, it's 22:12 in Singapore.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Amedee Army Air Field (AHC)](https://flightduration.online/airport/ahc-herlong-amedee-army-air-field/1ef266df-0da9-6f56-8358-06bb2780ed98)
- [Singapore Changi International Airport (SIN)](https://flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)
- [Flight duration calculator](/#calculator)