Cheap flights from Sydney to San Francisco from £420

The month of November is, on average, the cheapest month to fly to San Francisco from Sydney, with most prices found around £635. If you are unable to visit San Francisco during the month of November, then departing from Sydney during the month August is also very affordable. Most momondo users find prices during this month for around £676.

The cheapest day to depart on your flight to San Francisco is on a Thursday when prices can be found for as low as £937. This is often the case because there is less demand to fly during this day of the week. Flights from Sydney to San Francisco on a Tuesday will generally be more expensive and average around £1,235. 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 San Francisco is at midday. Flights from Sydney to San Francisco during this time can be as low as £1,035. Try not to purchase tickets in the morning because they tend to be around £1,039. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to San Francisco from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £754 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Sydney for as low as £663 on momondo.

There are 2 cabin classes available to choose from on Sydney Kingsford Smith to San Francisco 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 37% on your flight if you consider stops on a Sydney to San Francisco flight.

As of February 2026, prices for Sydney to San Francisco flights are approximately 11% cheaper when compared to flights at the same time last year.

Historically, on average around 17% of flights between Sydney and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 134 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.

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

10 flights are operational daily from Sydney to San Francisco as of February 2026. The most popular departure time for this route is 12:00, with 88% of flights per day taking off in the afternoon.

71 flights are operational weekly from Sydney to San Francisco as of February 2026. The most popular departure day for this route is Tue, with 18% of flights per week taking off on this day.