# Distance from Alto Parnaiba (APY) to Singapore (SIN)

> 16,580 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,580 km / 10,302 mi / 8,953 nm
- **Estimated flight time**: 21h
- **Heading**: 103° (east southeast)
- **Return heading**: 254° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Brazil) → Singapore
- **Intercontinental**: South America → Asia
- **Time difference**: +11h (When it's 18:01 in Alto Parnaiba, it's 05:01 in Singapore)
- **Elevation difference**: 946 ft (SIN is lower than APY)

## Airports

### [Alto Parnaiba Airport (APY)](https://www.flightduration.online/airport/apy-alto-parnaiba-alto-parnaiba-airport/1ef266df-baad-6068-9f90-06bb2780ed98)

- City: Alto Parnaiba, Brazil
- ICAO: SNAI
- Timezone: America/Fortaleza
- Coordinates: -9.080000, -45.950000
- Elevation: 968 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 18:01 in Alto Parnaiba, it's 05:01 in Singapore.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Alto Parnaiba Airport (APY)](https://www.flightduration.online/airport/apy-alto-parnaiba-alto-parnaiba-airport/1ef266df-baad-6068-9f90-06bb2780ed98)
- [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)