Popular routing options for the AUS→RBA December traveler include Iberia (via Madrid), Royal Air Maroc (often via Casablanca), Air France (via Paris), British Airways (via London), and U.S. carriers (American, Delta) connecting through respective hubs. Iberia commonly offers efficient Madrid connections to Rabat with competitive fares; Royal Air Maroc may offer seamless connections through Casablanca that can shorten Moroccan domestic legs. Air France and British Airways provide comfortable transatlantic services with European onward connections but may have higher taxes. When comparing airlines, evaluate total travel time, baggage policies, change/cancellation flexibility, and alliance benefits (e.g., Avios, SkyMiles). For December bookings, also check for holiday fees and seat availability. CTA: Compare total trip durations and fares across carriers now to pick the best December itinerary.