According to the text, the cheapest way to get a flight to Sydney is to search early since prices are typically high due to the distance. Return flights to Sydney start at an estimated cost of kr. 7.079. Flights from Kastrup, Copenhagen to Sydney cover a distance of approximately 16028.8 km. The cheapest flight to Australia from the USA starts at kr. 2.460. There are 19 airlines that fly from Denmark to Sydney, with the most popular route being from Kastrup, Copenhagen. The price of a flight to Australia varies, with an average of 7.492 kr. Flight prices from Copenhagen to various cities in Australia range from 7.383,- to 13.252,- depending on the destination. Sydney, NSW is the most popular airport in Australia with approximately 2986 flights per month. To book a flight from Copenhagen to Sydney, one can use Emirates or other airlines that fly to all countries/regions.