Cheap flights from Sydney to Austin from $605

The cheapest month to fly to Austin from Sydney is in September. Flight prices, which tend to average around $911, are often lower during this time because this is during the off-season. 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 $1,088.

The cheapest day to depart on your flight to Austin is on a Tuesday when prices can be found for as low as $192. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Sydney to Austin for around $255.

In the evening is the cheapest time of day to fly from Sydney to Austin when you can find flight prices for as low as $210. Flying to Austin in the evening is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the afternoon, with an average ticket price of $260. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,203 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Sydney for as low as $957 on momondo.

You could potentially save up to 52% 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.

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 at night have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.