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Cheap flights from Sydney to San Francisco from £276

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SFO
31 Aug — 7 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to San Francisco
Explore the most affordable flight options available from Sydney to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2026.

Mon 17/810:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Mon 16/1123:05
SFO
-
SYD
Nonstop15h 15m
United Airlines
Deal found 31/7£621
Mon 10/810:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Mon 7/923:00
SFO
-
SYD
Nonstop14h 55m
United Airlines
Deal found 29/7£623
Thu 20/810:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Sun 15/1116:25
SFO
-
SYD
1 stop21h 40m
United Airlines
Deal found 31/7£624
Mon 3/810:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Mon 31/823:00
SFO
-
SYD
Nonstop14h 55m
United Airlines
Deal found 29/7£625
Mon 3/810:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Sun 16/823:00
SFO
-
SYD
Nonstop14h 55m
United Airlines
Deal found 30/7£626
Thu 30/710:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Wed 12/819:49
SFO
-
SYD
1 stop18h 11m
United Airlines
Deal found 28/7£626
Wed 16/910:20
SYD
-
SFO
Nonstop13h 30m
United Airlines
Wed 23/910:25
SFO
-
SYD
1 stop27h 35m
United Airlines
Deal found 1/8£628
Mon 17/809:15
SYD
-
SFO
1 stop18h 34m
Delta
Sat 14/1117:16
SFO
-
SYD
2 stops44h 14m
Delta
Deal found 31/7£629
Mon 3/809:15
SYD
-
SFO
2 stops31h 42m
Delta
Sun 16/819:25
SFO
-
SYD
2 stops42h 25m
Delta
Deal found 1/8£631
Wed 16/909:15
SYD
-
SFO
1 stop21h 10m
Delta
Wed 23/909:55
SFO
-
SYD
2 stops27h 55m
Delta
Deal found 1/8£632

Find flight deals from Sydney to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 August 2026.

Round-trip from

£621

One-way from

£276

Popular in

July

Cheapest in

August

Average price

£646
United Airlines
  • United Airlines
  • 17/8-11/11
  • Nonstop
  • 28h 45m total
  • Sydney to San Francisco
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 45h 07m total
  • Sydney to San Francisco
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£33 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 August 2026.
Use the filters below to find and compare flights from Sydney to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Thu 1/10

10:20-06:50

Nonstop13h 30m

San Francisco

Mon 12/10

23:05-07:55

Nonstop14h 50m

£626

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Wed 9/9

09:15-23:01

2 stops30h 46m

San Francisco

Wed 16/9

09:55-06:50

2 stops27h 55m

£626

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Wed 16/9

10:20-06:50

Nonstop13h 30m

San Francisco

Wed 30/9

13:50-07:00

1 stop24h 10m

£626

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Wed 16/9

10:20-06:50

Nonstop13h 30m

San Francisco

Wed 23/9

23:05-06:55

Nonstop14h 50m

£628

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Wed 16/9

09:15-13:25

1 stop21h 10m

San Francisco

Wed 23/9

09:55-06:50

2 stops27h 55m

£632

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Thu 27/8

10:20-06:50

Nonstop13h 30m

San Francisco

Thu 3/9

12:29-07:00

1 stop25h 31m

£660

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Thu 27/8

09:10-11:12

1 stop19h 02m

San Francisco

Thu 3/9

15:03-07:30

2 stops23h 27m

£665

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Wed 23/12

11:20-16:35

1 stop24h 15m

San Francisco

Wed 20/1

12:00-09:05

1 stop26h 05m

£791

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Sun 13/12

11:20-13:15

1 stop20h 55m

San Francisco

Wed 23/12

06:00-09:05

1 stop32h 05m

£980
Cheapest one-way

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Tue 20/10

20:45-22:52

1 stop20h 07m

£493

Flights are sorted by cheapest return flights first.

Deals found on 27/7

Showing 1-10 of 20 resultsSorted by cheapest first
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Best time to book a flight from Sydney to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Sydney with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to San Francisco

How far ahead should I book a flight from Sydney to San Francisco?

The price you pay for your flight from Sydney to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Sydney to San Francisco?

Currently, August is the cheapest month in which you can book a flight from Sydney to San Francisco (average of £646). Flying from Sydney to San Francisco in July is currently the most expensive (average of £878). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SYD to SFO?

Find hourly flight availability from Sydney to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2026.

A simple way to save on the total cost of your ticket is to fly from Sydney to San Francisco in the afternoon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

How much does it cost for a return flight from Sydney to San Francisco?

Airfare is typical for this route at the moment.

Sydney to San Francisco flights typically cost between £559 and £787 in August.
The cheapest return price found within the last 5 days was £621 on United Airlines (17 Aug–16 Nov).

Related info for your journey

Find useful and relevant information for your journey from Sydney to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Sydney to San Francisco flight route?

    Flights from Sydney Kingsford Smith to San Francisco have been viewed 17 times in the past calendar month.

  • How long is the flight from Sydney to San Francisco?

    Departing from Sydney to San Francisco will take you 13h 30m. The distance between Sydney and San Francisco is about 7420 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Sydney to San Francisco?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Sydney to San Francisco on time: American Airlines (81%), Alaska Airlines (81%), Qantas Airways (81%).

  • Can I find deals for flights from Sydney to San Francisco that include hotel bookings?

    Yes. In addition to deals on Sydney to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to San Francisco.

  • Can I find deals for business class flights from Sydney to San Francisco?

    Yes. Cheapflights offers flight deals from Sydney to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to San Francisco?

    Currently, August is the cheapest month in which you can book a flight from Sydney to San Francisco (average of £646). Flying from Sydney to San Francisco in July is currently the most expensive (average of £878). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Newark
Bodega Bay
Sunnyvale
South San Francisco

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Los Angeles flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to San Francisco?

Deals for Sydney to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Sydney to San Francisco?

Cheapflights simply makes it quick and affordable to book flights from Sydney to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sydney to San Francisco with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Sydney to San Francisco flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Sydney to San Francisco become cheaper?

Of course! You can now track prices for flights from Sydney to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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