Cheap flights from Sydney to Austin from $855

If you’re not able to fly to Austin in September, then November is your next best option. Flight prices from Sydney to Austin during November average around $1,537.

Our data shows that Saturday is the least expensive day to fly to Austin. Tickets to fly out on this day can be as low as $267. Flights from Sydney to Austin on a Monday will generally be more expensive and average around $293. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Austin is in the morning. Flights from Sydney to Austin during this time can be as low as $260. Try not to purchase tickets in the afternoon because they tend to be around $377. Of course, these prices can vary depending on the time of year and what airport you fly to.

You are more likely to see cheaper flights to Austin from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $1,700 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Sydney for as low as $1,352 on momondo.

You could potentially save up to 4% on your flight if you consider stops on a Sydney to Austin flight.

As of February 2026, prices for Sydney to Austin flights are approximately 38% cheaper when compared to flights at the same time last year.

Qantas Airways and American Airlines are the most popular carriers operating from Sydney Kingsford Smith to Austin Bergstrom

United Airlines, Qantas Airways and Air New Zealand are the top three most popular airlines that fly to Austin from Sydney according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when travelling to Austin. Keep in mind that there are 6 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 19% of flights between Sydney and Austin have experienced a delay on any given week. The average delay length over the past 12 months has been 90 minutes.

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

Sunday 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, Qantas Airways have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

Los Angeles (LAX) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

Flights via Dallas (DFW) offer the lowest average return price of $1,517.

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 18h 19m.

Houston (IAH) has the shortest average stopover time for this route: 1h 23m.