# Distance from Green Bay (GRB) to Singapore (SIN)

> 14,779 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,779 km / 9,183 mi / 7,980 nm
- **Estimated flight time**: 18h
- **Heading**: 343° (north northwest)
- **Return heading**: 12° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Singapore
- **Intercontinental**: North America → Asia
- **Time difference**: +13h (When it's 23:58 in Green Bay, it's 12:58 in Singapore)
- **Elevation difference**: 673 ft (SIN is lower than GRB)

## Airports

### [Green Bay/Austin Straubel International Airport (GRB)](https://www.flightduration.online/airport/grb-green-bay-green-bayaustin-straubel-international-airport/1ef266df-1edb-6838-a38c-06bb2780ed98)

- City: Green Bay, United States
- ICAO: KGRB
- Timezone: America/Chicago
- Coordinates: 44.480000, -88.130000
- Elevation: 695 ft

### [Singapore Changi International Airport (SIN)](https://www.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 23:58 in Green Bay, it's 12:58 in Singapore.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Green Bay/Austin Straubel International Airport (GRB)](https://www.flightduration.online/airport/grb-green-bay-green-bayaustin-straubel-international-airport/1ef266df-1edb-6838-a38c-06bb2780ed98)
- [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)
- [Flight duration calculator](/#calculator)