Cheap flights from the United States to Australia from £378

The month of February is, on average, the cheapest month to fly to Australia from United States, with most prices found around £807. The month of March is another great option to travel to Australia, with average flight prices from United States averaging around £888.

The cheapest day to depart on your flight to Australia is on a Wednesday when prices can be found for as low as £765. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Australia is Thursday, with ticket prices averaging around £1,166.

Fly from Los Angeles to Sydney Kingsford Smith for the best United States - Australia flight prices

You are more likely to see cheaper flights to Australia from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around £983 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from United States for as low as £857 on momondo.

There are 4 cabin classes available to choose from on United States to Australia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 9% on your flight if you consider stops on a United States to Australia flight.

Qantas Airways, United Airlines, and Delta are the most popular carriers operating from United States to Australia

Qantas Airways, Fiji Airways and Delta are the top three most popular airlines that fly to Australia from United States according to our data. Qantas Airways is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 3 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between United States and Australia have experienced a delay on any given week. The average delay length over the past 12 months has been 134 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

As of July 2026, there are 35 flights per day flying from United States to Australia. The most common time of day flights depart is 23:00, with 100% of flights taking off in the evening.

As of July 2026, there are 247 flights per week flying from United States to Australia. The most common day of the week flights depart is Fri, with 18% of flights taking off on this day.