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Cheap flights from Sydney to San Francisco from £431

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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SFO
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Sydney Kingsford Smith to San Francisco are usually found in August or September, booked 17 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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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 7 November 2025.

Wed 24/1221:40SYD - SFO
1 stop16h 40mAlaska Airlines
Wed 31/1207:20SFO - SYD
1 stop17h 25mAlaska Airlines
Deal found 5/11£624
Thu 25/1221:40SYD - SFO
1 stop27h 18mAlaska Airlines
Wed 31/1207:20SFO - SYD
1 stop17h 25mAlaska Airlines
Deal found 5/11£641
Wed 24/1221:40SYD - SFO
1 stop16h 40mAlaska Airlines
Thu 1/107:20SFO - SYD
1 stop17h 25mAlaska Airlines
Deal found 5/11£661
Wed 24/1221:40SYD - SFO
1 stop16h 40mAlaska Airlines
Tue 30/1208:22SFO - SYD
2 stops40h 23mAlaska Airlines
Deal found 5/11£671
Thu 25/1221:40SYD - SFO
1 stop27h 18mAlaska Airlines
Thu 1/107:20SFO - SYD
1 stop17h 25mAlaska Airlines
Deal found 5/11£678
Thu 25/1221:40SYD - SFO
1 stop27h 18mAlaska Airlines
Tue 30/1208:22SFO - SYD
2 stops40h 23mAlaska Airlines
Deal found 5/11£700

Cheap 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 7 November 2025.

Round-trip from

£587

One-way from

£431

Popular in

December

Cheapest in

August

Average price

£780

Good one-way deal

£5,650 or less
Alaska Airlines
  • Alaska Airlines
  • 24/3-8/4
  • 3 total stops
  • 69h 10m total
  • Sydney to San Francisco
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Alaska Airlines
  • Alaska Airlines
  • 6/12
  • 2 total stops
  • 21h 39m total
  • Sydney to San Francisco
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£51 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a one-way flight from Sydney Kingsford Smith to San Francisco.
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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 7 November 2025.
Use the filters below to find and compare flights from Sydney to San Francisco that are best for you.

Fly from

Sydney

Fly to

San Francisco

Route

Depart

Return

Price

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Sat 14/2

11:45-11:05

1 stop18h 20m

San Francisco

Fri 27/2

19:50-10:30

1 stop19h 40m

£594

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Sun 29/3

21:40-05:15

1 stop25h 35m

San Francisco

Wed 8/4

19:55-19:45

1 stop30h 50m

£637

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Thu 19/2

21:40-05:15

1 stop26h 35m

San Francisco

Wed 4/3

19:55-19:45

1 stop28h 50m

£677

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Tue 13/1

21:40-19:45

1 stop17h 05m

San Francisco

Sat 17/1

07:31-19:45

1 stop17h 14m

£680

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Tue 13/1

21:40-19:45

1 stop17h 05m

San Francisco

Fri 16/1

18:34-19:45

1 stop30h 11m

£689

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Mon 12/1

14:15-07:57

1 stop36h 42m

San Francisco

Sun 18/1

16:02-06:50

1 stop19h 48m

£701

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Tue 20/1

21:40-19:45

1 stop17h 05m

San Francisco

Tue 27/1

07:31-19:45

1 stop17h 14m

£719

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Thu 25/12

21:40-07:38

2 stops28h 58m

San Francisco

Wed 31/12

08:22-19:45

2 stops40h 23m

£720

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Sat 14/2

21:40-08:29

2 stops29h 49m

San Francisco

Fri 27/2

07:35-19:45

1 stop17h 10m

£735

SydneySan Francisco

SYD - SFO

SYDSFO

Sydney Kingsford Smith

Mon 12/1

14:15-08:55

2 stops37h 40m

San Francisco

Sat 17/1

09:55-06:50

1 stop25h 55m

£739

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 18 results
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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

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 £336). Flying from Sydney to San Francisco in December is currently the most expensive (average of £632). 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 7 November 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to San Francisco in the morning. If you’re flexible enough to do this you can expect to save up to 22% 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?

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 28 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 18h 20m. 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: Avianca (80%), Virgin Australia (80%), United Airlines (80%).

  • What are the cheapest flights from Sydney to San Francisco?

    While on average a flight from Sydney to San Francisco is generally £5,654, our data shows the cheapest flight currently is £5,063. When looking at the most popular route, (Sydney Kingsford Smith - San Francisco), you can expect to pay £587 for that flight.

  • 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 £336). Flying from Sydney to San Francisco in December is currently the most expensive (average of £632). 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
Newark
South San Francisco
San Bruno
Bodega Bay
Pacific Grove

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

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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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