For all cities with a population greater than one million, Sydney is closest to Melbourne and farthest from El-Jadida. The closest foreign city is Auckland and the farthest domestic city is Perth. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Sydney is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.