1. Direct Flight:
- New York (JFK) to Sydney (SYD): Approximately 15-16 hours (non-stop)
- New York (JFK) to Melbourne (MEL): Approximately 15-16 hours (non-stop)
2. Indirect Flights (with one stopover):
- New York (JFK) to Sydney (SYD) via Los Angeles (LAX): Approximately 17-18 hours
- New York (JFK) to Melbourne (MEL) via Los Angeles (LAX): Approximately 17-18 hours
- New York (JFK) to Sydney (SYD) via Dallas (DFW): Approximately 17-18 hours
- New York (JFK) to Melbourne (MEL) via Dallas (DFW): Approximately 17-18 hours
These flight times are approximate and may vary depending on factors such as flight route, weather conditions, and airline schedules. It's always best to check with your preferred airline or a travel booking platform for the most accurate and up-to-date flight information.