Cheap flights from San Francisco to Sydney from £421

In general, March is the cheapest month to fly from San Francisco to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £802. If you don’t want to visit Sydney in March, then you should wait until August to fly from San Francisco, when ticket prices are also cheap, with an average price of £844.

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

You are more likely to see cheaper flights to Sydney from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around £950 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from San Francisco for as low as £828 on momondo.

There are 2 cabin classes available to choose from on San Francisco to Sydney 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 21% on your flight if you consider stops on a San Francisco to Sydney flight.

As of October 2026, prices for San Francisco to Sydney flights are approximately 16% cheaper when compared to flights at the same time last year.

Historically, on average around 19% of flights between San Francisco and Sydney have experienced a delay on any given week. The average delay length over the past 12 months has been 158 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.

Friday 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 9% of their flights experiencing any sort of delay.

As of October 2026, 2 flights take off from San Francisco and land in Sydney each day. The most common flight departure time for this route is 23:00, with 100% of daily flights taking off in the evening.

15 flights are operational weekly from San Francisco to Sydney as of October 2026. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.