A very good deal for return flights from London, United Kingdom to Sydney, Australia for as low as £596, with British Airways and Cathay Pacific! That works out to a cost of just about 3.5 Cents Per Mile flown. The average price for a round-trip between London and Sydney is £800.
Even though the far does not include checked-in luggage, this is a very good deal as this is a 21,150-mile journey.
The cheapest prices are available for June 2021. Here is a sample itinerary in early June 2021 (June 9 – June 16):