Cheap flights from the United States to Australia from $538

In general, February is the cheapest month to fly from United States to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,541. If you don’t want to visit Australia in February, then you should wait until August to fly from United States, when ticket prices are also cheap, with an average price of $1,576.

On average, the least expensive day to fly to Australia from United States is on a Monday. momondo users have found tickets for Monday departures for as low as $1,283. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from United States to Australia on a Thursday will generally be more expensive and average around $1,536. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Fly from Las Vegas Harry Reid Intl 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 $1,345 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 $1,268 on momondo.

You could potentially save up to 8% on your flight if you consider stops on a United States to Australia flight.

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

Qantas Airways, United Airlines and Fiji Airways 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 50% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 11 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 135 minutes.

Generally, flights departing in the early afternoon 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 18% of their flights experiencing any sort of delay.

As of May 2026, there are 41 flights per day flying from United States to Australia. The most common time of day flights depart is 22:00, with 100% of flights taking off in the evening.

As of May 2026, 288 flights take off from United States and land in Australia each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.