Currently, there are no nonstop services directly linking Philadelphia International Airport (PHL) with Sydney Kingsford Smith Airport (SYD); most travelers choose connecting itineraries. Pros of connecting: more routing options, potential cost savings, and flexible departure times via hubs like LAX, SFO, JFK or DFW. Cons: longer total travel time, potential for missed connections, and more complex baggage rules if using mixed tickets. For February travel, prioritize reliable minimum connection times and consider through-checked baggage and single-ticket itineraries to reduce risk. CTA: Compare one-stop itineraries for best travel time and price.