Cheap Flights from San Francisco International to Sydney

Compare San Francisco International to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

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Flight deals from San Francisco International to Sydney

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Sydney? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Francisco International to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Sydney flights are currently cheapest in September.

Direct flights from San Francisco International to Sydney

San Francisco International to Sydney: Alternative routes

Compare routes from San Francisco International to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

San Francisco to Sydney: Flight information

The things to know before you go.
Cheapest flight foundR 5,799
Cheapest month to flySeptember
Average flight time15 hrs, 9 mins
Most popular airlineUnited
Average flights per week53

Finding cheap flights from San Francisco International to Sydney: Frequently asked questions

The best price we found for a return flight from San Francisco International to Sydney is R 12,186. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
15 hours and 9 minutes is the average flight time from San Francisco International to Sydney.
United, SWISS and Virgin Australia fly direct from San Francisco International to Sydney.
As of July 2025, there are 53 flights per week flying from San Francisco International to Sydney.
The cheapest month to fly from San Francisco International to Sydney is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Sydney Airport on Tuesday, 2 September 2025.
Yes – the average flight time is 15 hours and 9 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Hawaiian Airlines and Qantas offer the cheapest flight tickets to Sydney.

Flying from San Francisco International Airport (SFO) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • The average length of a direct flight from San Francisco International Airport to Sydney (Kingsford Smith) Airport is 15 hours.

  • Sydney is 18 hours ahead of San Francisco and observes the UTC+11 timezone.

  • Each week, there are 17 San Francisco International Airport to Sydney (Kingsford Smith) Airport flights. If you want to get going as early as possible, go for the 20:00 United Airlines flight. If you're eager to make the most of your day before you fly, the last departure is at 23:05 with United Airlines.

  • To ensure you get on your SFO to SYD flight, allow plenty of time for things like baggage drop and finding your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • During popular months such as August, it's a good idea to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead for international flights when you fly during a high season in general.

  • Qantas is your gateway to discovering Sydney (and perhaps some other great corners of Australia!). Browse the direct flights from San Francisco International Airport to Sydney (Kingsford Smith) Airport offered by this airline.

  • Qantas is the airline most travellers choose for this route.

  • With an impressive 92.31% of services arriving as planned, Qantas is the most punctual carrier for SFO to SYD flights.

  • If you'd like to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from San Francisco International Airport to Sydney (Kingsford Smith) Airport. These are the most popular stopovers between SFO and SYD:

    • Brisbane Airport

    • Daniel K. Inouye International Airport

    • Los Angeles International Airport

How to find the cheapest flights from San Francisco International Airport (SFO) to Sydney (Kingsford Smith) Airport (SYD)

  • R 5,799 is currently the best price for a one-way San Francisco International Airport to Sydney (Kingsford Smith) Airport flight. Return flights start at R 12,186. These prices can change based on availability.

  • To score cheap tickets from SFO to SYD, book your trip three months ahead of your planned departure.

  • Schedule your trip for February. That's the cheapest month for flights from San Francisco International Airport to Sydney (Kingsford Smith) Airport. If you're flexible with your dates, try out the 'Whole month' tool to see the lowest price across each month.

  • Save time looking for cheap flights from SFO to SYD by creating a Price Alert. You'll get an email or push notification on the app when a lower fare pops up.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from San Francisco International Airport to Sydney (Kingsford Smith) Airport.

Handy information about San Francisco International Airport (SFO)

  • Of all flights departing from San Francisco International Airport, 77.36% arrive on time at their destination.

  • Central San Francisco to San Francisco International Airport is around 21 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Expect a journey time of about 45 minutes when using public transport.

  • Need a handy hotel close to SFO? If you've booked an early flight from San Francisco International Airport to Sydney (Kingsford Smith) Airport, these stays will have you moments from your departure lounge:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

  • From Sydney (Kingsford Smith) Airport, Sydney is approximately 18 kilometres away. It takes around 20 minutes to reach the centre by car.

  • Travelling to the centre on public transport takes roughly 25 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

  • It's time to pick your trip dates for your flight from San Francisco International Airport to Sydney (Kingsford Smith) Airport. April is the busiest month to head to Sydney. If you prefer a quieter vibe, go in April.

  • When reserving your flight from San Francisco International Airport to Sydney (Kingsford Smith) Airport, consider the kind of weather you like. January is the warmest month in Sydney, with the temperature ranging from 17ºC (63ºF) to 32ºC (90ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from SFO to SYD in July. Temperatures average between 5ºC (41ºF) and 19ºC (66ºF) then.

Explore more of Australia

  • Canberra is just one of the many cities in Australia waiting to be explored after you've seen Sydney. Around 241 kilometres away to the south-west, top sights here include Australian War Memorial, National Gallery of Australia and Parliament House.

  • Around 121 kilometres north-east of Sydney, Newcastle is another favourite stop in Australia. Experience this destination's highlights firsthand at Newcastle Beach, Nobbys Beach and Merewether Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.