£645 Cheap flights to Australia

Australia is full of notable places to explore, many with significant historical value to the region and the world. Some of the most popular landmarks in Australia are Uluru, Sydney Opera House, Sydney Cricket Ground, and St. Kilda Beach, among many more.

When visiting Uluru in Yulara, the closest airport is Yulara Airport.

Qatar Airways, Emirates and Singapore Airlines are the top three most popular airlines that fly to Australia according to our data. Qatar Airways is the first choice among our users, with 31% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 40 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

Sydney Kingsford Smith is the most popular airport in Australia to fly to, with 34% of all users travelling to Australia opting to take a flight into this airport. If you’re interested in staying in Sydney, which is the city in Australia that is closest to Sydney Kingsford Smith, then be sure to check momondo for cheap flight deals.

Flights to Australia have been found on momondo for as low as £668 per ticket recently. However, the average price tends to be £3,836 and anything for £3,403 or less is a good deal. £12,562 is the most expensive flight we’ve seen in the past week, though you may be able to avoid this price depending on what airport you fly from, what airline you choose, and how far in advance you book your flights.

Consider booking a flight to Australia on a Monday, which is the cheapest day of the week. You will also find that flying out on a Tuesday is another low-cost option. Try to avoid booking your flight to Australia on Friday, which tends to be the most expensive day of the week.

If you're headed to Australia, consider flying into Sydney Kingsford Smith airport in Sydney for the best deals, with an average airfare of £668. Alternatively, Perth airport in Perth is a close second for cheapest flights to Australia with an average airfare of £874.

Prices for flights to Australia are updated daily.

As of December 2025, there are 57 operators available to choose from for flights to Australia.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Australia.

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.