January travel from Dallas/Fort Worth International Airport (DFW) to Sydney Kingsford Smith Airport (SYD) requires planning for contrasting climates: Dallas can have cool winter mornings while Sydney is in summer. Pack light summer clothing for Sydney, a warm layer for Dallas airports, sun protection, and a travel adapter for Australian outlets. To minimize jet lag, adopt gradual schedule shifts before departure, stay hydrated on the flight, and seek daylight upon arrival in Sydney. Allow extra time for airport processing on both ends due to January peak travel, and confirm all entry requirements and visa status in advance. CTA: Prepare for your January DFW to SYD trip now—check weather and entry rules and book your transfers early.