Cheap flights from San Francisco to Australia from $671

In general, April is the cheapest month to fly from San Francisco to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $105. If you don’t want to visit Australia in April, then you should wait until June to fly from San Francisco, when ticket prices are also cheap, with an average price of $189.

On average, the least expensive day to fly to Australia from San Francisco is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,543. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from San Francisco to Australia on a Friday will generally be more expensive and average around $2,620. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Fly from San Francisco to Sydney Kingsford Smith for the best San Francisco - Australia flight prices

You are more likely to see cheaper flights to Australia from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,641 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 San Francisco for as low as $1,540 on momondo.

You could potentially save up to 3% on your flight if you consider stops on a San Francisco to Australia flight.

Philippine Airlines, Alaska Airlines, and Qantas Airways are the most popular carriers operating from San Francisco to Australia

United Airlines, Fiji Airways and Qantas Airways are the top three most popular airlines that fly to Australia from San Francisco according to our data. United Airlines 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 5 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between San Francisco and Australia have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

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

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday 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 11% of their flights experiencing any sort of delay.

13 flights are operational daily from San Francisco to Australia as of May 2026. The most popular departure time for this route is 23:00, with 100% of flights per day taking off in the evening.

92 flights are operational weekly from San Francisco to Australia as of May 2026. The most popular departure day for this route is Fri, with 18% of flights per week taking off on this day.