Estimated nonstop flight time between Dallas/Fort Worth International Airport (DFW) and Sydney Kingsford Smith Airport (SYD) is approximately 17 hours when nonstop services operate. More commonly in December, itineraries are one-stop with total journey times from about 17 to 24+ hours depending on connection length—common layover cities include Los Angeles (LAX), San Francisco (SFO), and sometimes New York (JFK) or Dallas hubs. Check early-morning departures from DFW to optimize arrival times in Sydney and reduce layover confusion. Use keywords such as 'DFW SYD duration', 'Dallas to Sydney schedule', and LSI terms like 'layover time', 'flight connections', and 'overnight flights'. CTA: Review flight schedules now and select itineraries with preferred layover durations to minimize jet lag.